commit:     4910d4b94b7c2762c4408285599268c9899da415
Author:     Mike Pagano <mpagano <AT> gentoo <DOT> org>
AuthorDate: Thu Jul 18 12:15:41 2024 +0000
Commit:     Mike Pagano <mpagano <AT> gentoo <DOT> org>
CommitDate: Thu Jul 18 12:15:41 2024 +0000
URL:        https://gitweb.gentoo.org/proj/linux-patches.git/commit/?id=4910d4b9

Linux patch 6.1.100

Signed-off-by: Mike Pagano <mpagano <AT> gentoo.org>

 0000_README              |    4 +
 1099_linux-6.1.100.patch | 3692 ++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 3696 insertions(+)

diff --git a/0000_README b/0000_README
index 6e536b9a..2650897a 100644
--- a/0000_README
+++ b/0000_README
@@ -439,6 +439,10 @@ Patch:  1098_linux-6.1.99.patch
 From:   https://www.kernel.org
 Desc:   Linux 6.1.99
 
+Patch:  1099_linux-6.1.100.patch
+From:   https://www.kernel.org
+Desc:   Linux 6.1.100
+
 Patch:  1500_XATTR_USER_PREFIX.patch
 From:   https://bugs.gentoo.org/show_bug.cgi?id=470644
 Desc:   Support for namespace user.pax.* on tmpfs.

diff --git a/1099_linux-6.1.100.patch b/1099_linux-6.1.100.patch
new file mode 100644
index 00000000..594ab69b
--- /dev/null
+++ b/1099_linux-6.1.100.patch
@@ -0,0 +1,3692 @@
+diff --git a/Documentation/admin-guide/cifs/usage.rst 
b/Documentation/admin-guide/cifs/usage.rst
+index 3766bf8a1c20e..a50047cf95ca2 100644
+--- a/Documentation/admin-guide/cifs/usage.rst
++++ b/Documentation/admin-guide/cifs/usage.rst
+@@ -722,40 +722,26 @@ Configuration pseudo-files:
+ ======================= 
=======================================================
+ SecurityFlags         Flags which control security negotiation and
+                       also packet signing. Authentication (may/must)
+-                      flags (e.g. for NTLM and/or NTLMv2) may be combined with
++                      flags (e.g. for NTLMv2) may be combined with
+                       the signing flags.  Specifying two different password
+                       hashing mechanisms (as "must use") on the other hand
+                       does not make much sense. Default flags are::
+ 
+-                              0x07007
+-
+-                      (NTLM, NTLMv2 and packet signing allowed).  The maximum
+-                      allowable flags if you want to allow mounts to servers
+-                      using weaker password hashes is 0x37037 (lanman,
+-                      plaintext, ntlm, ntlmv2, signing allowed).  Some
+-                      SecurityFlags require the corresponding menuconfig
+-                      options to be enabled.  Enabling plaintext
+-                      authentication currently requires also enabling
+-                      lanman authentication in the security flags
+-                      because the cifs module only supports sending
+-                      laintext passwords using the older lanman dialect
+-                      form of the session setup SMB.  (e.g. for authentication
+-                      using plain text passwords, set the SecurityFlags
+-                      to 0x30030)::
++                              0x00C5
++
++                      (NTLMv2 and packet signing allowed).  Some SecurityFlags
++                      may require enabling a corresponding menuconfig option.
+ 
+                         may use packet signing                        0x00001
+                         must use packet signing                       0x01001
+-                        may use NTLM (most common password hash)      0x00002
+-                        must use NTLM                                 0x02002
+                         may use NTLMv2                                0x00004
+                         must use NTLMv2                               0x04004
+-                        may use Kerberos security                     0x00008
+-                        must use Kerberos                             0x08008
+-                        may use lanman (weak) password hash           0x00010
+-                        must use lanman password hash                 0x10010
+-                        may use plaintext passwords                   0x00020
+-                        must use plaintext passwords                  0x20020
+-                        (reserved for future packet encryption)       0x00040
++                        may use Kerberos security (krb5)              0x00008
++                        must use Kerberos                             0x08008
++                        may use NTLMSSP                               0x00080
++                        must use NTLMSSP                              0x80080
++                        seal (packet encryption)                      0x00040
++                        must seal (not implemented yet)               0x40040
+ 
+ cifsFYI                       If set to non-zero value, additional debug 
information
+                       will be logged to the system error log.  This field
+diff --git a/Makefile b/Makefile
+index c12da8fcb089b..54099eefe18ca 100644
+--- a/Makefile
++++ b/Makefile
+@@ -1,7 +1,7 @@
+ # SPDX-License-Identifier: GPL-2.0
+ VERSION = 6
+ PATCHLEVEL = 1
+-SUBLEVEL = 99
++SUBLEVEL = 100
+ EXTRAVERSION =
+ NAME = Curry Ramen
+ 
+diff --git a/arch/arm/mach-davinci/pm.c b/arch/arm/mach-davinci/pm.c
+index 8aa39db095d76..2c5155bd376ba 100644
+--- a/arch/arm/mach-davinci/pm.c
++++ b/arch/arm/mach-davinci/pm.c
+@@ -61,7 +61,7 @@ static void davinci_pm_suspend(void)
+ 
+       /* Configure sleep count in deep sleep register */
+       val = __raw_readl(pm_config.deepsleep_reg);
+-      val &= ~DEEPSLEEP_SLEEPCOUNT_MASK,
++      val &= ~DEEPSLEEP_SLEEPCOUNT_MASK;
+       val |= pm_config.sleepcount;
+       __raw_writel(val, pm_config.deepsleep_reg);
+ 
+diff --git a/arch/s390/include/asm/processor.h 
b/arch/s390/include/asm/processor.h
+index c907f747d2a04..26861b09293f1 100644
+--- a/arch/s390/include/asm/processor.h
++++ b/arch/s390/include/asm/processor.h
+@@ -250,8 +250,8 @@ static inline void __load_psw(psw_t psw)
+  */
+ static __always_inline void __load_psw_mask(unsigned long mask)
+ {
++      psw_t psw __uninitialized;
+       unsigned long addr;
+-      psw_t psw;
+ 
+       psw.mask = mask;
+ 
+diff --git a/arch/x86/entry/entry_64.S b/arch/x86/entry/entry_64.S
+index 6624806e6904b..a114338380a6f 100644
+--- a/arch/x86/entry/entry_64.S
++++ b/arch/x86/entry/entry_64.S
+@@ -167,22 +167,9 @@ SYM_INNER_LABEL(entry_SYSCALL_64_after_hwframe, 
SYM_L_GLOBAL)
+       jne     swapgs_restore_regs_and_return_to_usermode
+ 
+       /*
+-       * SYSCALL clears RF when it saves RFLAGS in R11 and SYSRET cannot
+-       * restore RF properly. If the slowpath sets it for whatever reason, we
+-       * need to restore it correctly.
+-       *
+-       * SYSRET can restore TF, but unlike IRET, restoring TF results in a
+-       * trap from userspace immediately after SYSRET.  This would cause an
+-       * infinite loop whenever #DB happens with register state that satisfies
+-       * the opportunistic SYSRET conditions.  For example, single-stepping
+-       * this user code:
+-       *
+-       *           movq       $stuck_here, %rcx
+-       *           pushfq
+-       *           popq %r11
+-       *   stuck_here:
+-       *
+-       * would never get past 'stuck_here'.
++       * SYSRET cannot restore RF.  It can restore TF, but unlike IRET,
++       * restoring TF results in a trap from userspace immediately after
++       * SYSRET.
+        */
+       testq   $(X86_EFLAGS_RF|X86_EFLAGS_TF), %r11
+       jnz     swapgs_restore_regs_and_return_to_usermode
+diff --git a/arch/x86/entry/entry_64_compat.S 
b/arch/x86/entry/entry_64_compat.S
+index b14b8cd85eb23..74a2f418e6745 100644
+--- a/arch/x86/entry/entry_64_compat.S
++++ b/arch/x86/entry/entry_64_compat.S
+@@ -90,10 +90,6 @@ SYM_INNER_LABEL(entry_SYSENTER_compat_after_hwframe, 
SYM_L_GLOBAL)
+ 
+       cld
+ 
+-      IBRS_ENTER
+-      UNTRAIN_RET
+-      CLEAR_BRANCH_HISTORY
+-
+       /*
+        * SYSENTER doesn't filter flags, so we need to clear NT and AC
+        * ourselves.  To save a few cycles, we can check whether
+@@ -117,6 +113,16 @@ SYM_INNER_LABEL(entry_SYSENTER_compat_after_hwframe, 
SYM_L_GLOBAL)
+       jnz     .Lsysenter_fix_flags
+ .Lsysenter_flags_fixed:
+ 
++      /*
++       * CPU bugs mitigations mechanisms can call other functions. They
++       * should be invoked after making sure TF is cleared because
++       * single-step is ignored only for instructions inside the
++       * entry_SYSENTER_compat function.
++       */
++      IBRS_ENTER
++      UNTRAIN_RET
++      CLEAR_BRANCH_HISTORY
++
+       movq    %rsp, %rdi
+       call    do_SYSENTER_32
+       /* XEN PV guests always use IRET path */
+diff --git a/arch/x86/lib/retpoline.S b/arch/x86/lib/retpoline.S
+index 055955c9bfcb7..7880e2a7ec6ad 100644
+--- a/arch/x86/lib/retpoline.S
++++ b/arch/x86/lib/retpoline.S
+@@ -107,6 +107,7 @@ __EXPORT_THUNK(srso_alias_untrain_ret)
+ /* dummy definition for alternatives */
+ SYM_START(srso_alias_untrain_ret, SYM_L_GLOBAL, SYM_A_NONE)
+       ANNOTATE_UNRET_SAFE
++      ANNOTATE_NOENDBR
+       ret
+       int3
+ SYM_FUNC_END(srso_alias_untrain_ret)
+@@ -261,7 +262,6 @@ SYM_CODE_START(__x86_return_thunk)
+       UNWIND_HINT_FUNC
+       ANNOTATE_NOENDBR
+       ANNOTATE_UNRET_SAFE
+-      ANNOTATE_NOENDBR
+       ret
+       int3
+ SYM_CODE_END(__x86_return_thunk)
+diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c
+index 6f613eef28879..18f4334a96919 100644
+--- a/drivers/acpi/processor_idle.c
++++ b/drivers/acpi/processor_idle.c
+@@ -16,7 +16,6 @@
+ #include <linux/acpi.h>
+ #include <linux/dmi.h>
+ #include <linux/sched.h>       /* need_resched() */
+-#include <linux/sort.h>
+ #include <linux/tick.h>
+ #include <linux/cpuidle.h>
+ #include <linux/cpu.h>
+@@ -388,25 +387,24 @@ static void acpi_processor_power_verify_c3(struct 
acpi_processor *pr,
+       return;
+ }
+ 
+-static int acpi_cst_latency_cmp(const void *a, const void *b)
++static void acpi_cst_latency_sort(struct acpi_processor_cx *states, size_t 
length)
+ {
+-      const struct acpi_processor_cx *x = a, *y = b;
++      int i, j, k;
+ 
+-      if (!(x->valid && y->valid))
+-              return 0;
+-      if (x->latency > y->latency)
+-              return 1;
+-      if (x->latency < y->latency)
+-              return -1;
+-      return 0;
+-}
+-static void acpi_cst_latency_swap(void *a, void *b, int n)
+-{
+-      struct acpi_processor_cx *x = a, *y = b;
++      for (i = 1; i < length; i++) {
++              if (!states[i].valid)
++                      continue;
+ 
+-      if (!(x->valid && y->valid))
+-              return;
+-      swap(x->latency, y->latency);
++              for (j = i - 1, k = i; j >= 0; j--) {
++                      if (!states[j].valid)
++                              continue;
++
++                      if (states[j].latency > states[k].latency)
++                              swap(states[j].latency, states[k].latency);
++
++                      k = j;
++              }
++      }
+ }
+ 
+ static int acpi_processor_power_verify(struct acpi_processor *pr)
+@@ -451,10 +449,7 @@ static int acpi_processor_power_verify(struct 
acpi_processor *pr)
+ 
+       if (buggy_latency) {
+               pr_notice("FW issue: working around C-state latencies out of 
order\n");
+-              sort(&pr->power.states[1], max_cstate,
+-                   sizeof(struct acpi_processor_cx),
+-                   acpi_cst_latency_cmp,
+-                   acpi_cst_latency_swap);
++              acpi_cst_latency_sort(&pr->power.states[1], max_cstate);
+       }
+ 
+       lapic_timer_propagate_broadcast(pr);
+diff --git a/drivers/char/hpet.c b/drivers/char/hpet.c
+index ee71376f174b7..3bc1d9243dbd0 100644
+--- a/drivers/char/hpet.c
++++ b/drivers/char/hpet.c
+@@ -289,8 +289,13 @@ hpet_read(struct file *file, char __user *buf, size_t 
count, loff_t * ppos)
+       if (!devp->hd_ireqfreq)
+               return -EIO;
+ 
+-      if (count < sizeof(unsigned long))
+-              return -EINVAL;
++      if (in_compat_syscall()) {
++              if (count < sizeof(compat_ulong_t))
++                      return -EINVAL;
++      } else {
++              if (count < sizeof(unsigned long))
++                      return -EINVAL;
++      }
+ 
+       add_wait_queue(&devp->hd_waitqueue, &wait);
+ 
+@@ -314,9 +319,16 @@ hpet_read(struct file *file, char __user *buf, size_t 
count, loff_t * ppos)
+               schedule();
+       }
+ 
+-      retval = put_user(data, (unsigned long __user *)buf);
+-      if (!retval)
+-              retval = sizeof(unsigned long);
++      if (in_compat_syscall()) {
++              retval = put_user(data, (compat_ulong_t __user *)buf);
++              if (!retval)
++                      retval = sizeof(compat_ulong_t);
++      } else {
++              retval = put_user(data, (unsigned long __user *)buf);
++              if (!retval)
++                      retval = sizeof(unsigned long);
++      }
++
+ out:
+       __set_current_state(TASK_RUNNING);
+       remove_wait_queue(&devp->hd_waitqueue, &wait);
+@@ -671,12 +683,24 @@ struct compat_hpet_info {
+       unsigned short hi_timer;
+ };
+ 
++/* 32-bit types would lead to different command codes which should be
++ * translated into 64-bit ones before passed to hpet_ioctl_common
++ */
++#define COMPAT_HPET_INFO       _IOR('h', 0x03, struct compat_hpet_info)
++#define COMPAT_HPET_IRQFREQ    _IOW('h', 0x6, compat_ulong_t)
++
+ static long
+ hpet_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
+ {
+       struct hpet_info info;
+       int err;
+ 
++      if (cmd == COMPAT_HPET_INFO)
++              cmd = HPET_INFO;
++
++      if (cmd == COMPAT_HPET_IRQFREQ)
++              cmd = HPET_IRQFREQ;
++
+       mutex_lock(&hpet_mutex);
+       err = hpet_ioctl_common(file->private_data, cmd, arg, &info);
+       mutex_unlock(&hpet_mutex);
+diff --git a/drivers/firmware/cirrus/cs_dsp.c 
b/drivers/firmware/cirrus/cs_dsp.c
+index 64ed9d3f5d5d8..ee4c32669607f 100644
+--- a/drivers/firmware/cirrus/cs_dsp.c
++++ b/drivers/firmware/cirrus/cs_dsp.c
+@@ -1014,9 +1014,16 @@ struct cs_dsp_coeff_parsed_coeff {
+       int len;
+ };
+ 
+-static int cs_dsp_coeff_parse_string(int bytes, const u8 **pos, const u8 
**str)
++static int cs_dsp_coeff_parse_string(int bytes, const u8 **pos, unsigned int 
avail,
++                                   const u8 **str)
+ {
+-      int length;
++      int length, total_field_len;
++
++      /* String fields are at least one __le32 */
++      if (sizeof(__le32) > avail) {
++              *pos = NULL;
++              return 0;
++      }
+ 
+       switch (bytes) {
+       case 1:
+@@ -1029,10 +1036,16 @@ static int cs_dsp_coeff_parse_string(int bytes, const 
u8 **pos, const u8 **str)
+               return 0;
+       }
+ 
++      total_field_len = ((length + bytes) + 3) & ~0x03;
++      if ((unsigned int)total_field_len > avail) {
++              *pos = NULL;
++              return 0;
++      }
++
+       if (str)
+               *str = *pos + bytes;
+ 
+-      *pos += ((length + bytes) + 3) & ~0x03;
++      *pos += total_field_len;
+ 
+       return length;
+ }
+@@ -1057,71 +1070,134 @@ static int cs_dsp_coeff_parse_int(int bytes, const u8 
**pos)
+       return val;
+ }
+ 
+-static inline void cs_dsp_coeff_parse_alg(struct cs_dsp *dsp, const u8 **data,
+-                                        struct cs_dsp_coeff_parsed_alg *blk)
++static int cs_dsp_coeff_parse_alg(struct cs_dsp *dsp,
++                                const struct wmfw_region *region,
++                                struct cs_dsp_coeff_parsed_alg *blk)
+ {
+       const struct wmfw_adsp_alg_data *raw;
++      unsigned int data_len = le32_to_cpu(region->len);
++      unsigned int pos;
++      const u8 *tmp;
++
++      raw = (const struct wmfw_adsp_alg_data *)region->data;
+ 
+       switch (dsp->fw_ver) {
+       case 0:
+       case 1:
+-              raw = (const struct wmfw_adsp_alg_data *)*data;
+-              *data = raw->data;
++              if (sizeof(*raw) > data_len)
++                      return -EOVERFLOW;
+ 
+               blk->id = le32_to_cpu(raw->id);
+               blk->name = raw->name;
+-              blk->name_len = strlen(raw->name);
++              blk->name_len = strnlen(raw->name, ARRAY_SIZE(raw->name));
+               blk->ncoeff = le32_to_cpu(raw->ncoeff);
++
++              pos = sizeof(*raw);
+               break;
+       default:
+-              blk->id = cs_dsp_coeff_parse_int(sizeof(raw->id), data);
+-              blk->name_len = cs_dsp_coeff_parse_string(sizeof(u8), data,
++              if (sizeof(raw->id) > data_len)
++                      return -EOVERFLOW;
++
++              tmp = region->data;
++              blk->id = cs_dsp_coeff_parse_int(sizeof(raw->id), &tmp);
++              pos = tmp - region->data;
++
++              tmp = &region->data[pos];
++              blk->name_len = cs_dsp_coeff_parse_string(sizeof(u8), &tmp, 
data_len - pos,
+                                                         &blk->name);
+-              cs_dsp_coeff_parse_string(sizeof(u16), data, NULL);
+-              blk->ncoeff = cs_dsp_coeff_parse_int(sizeof(raw->ncoeff), data);
++              if (!tmp)
++                      return -EOVERFLOW;
++
++              pos = tmp - region->data;
++              cs_dsp_coeff_parse_string(sizeof(u16), &tmp, data_len - pos, 
NULL);
++              if (!tmp)
++                      return -EOVERFLOW;
++
++              pos = tmp - region->data;
++              if (sizeof(raw->ncoeff) > (data_len - pos))
++                      return -EOVERFLOW;
++
++              blk->ncoeff = cs_dsp_coeff_parse_int(sizeof(raw->ncoeff), &tmp);
++              pos += sizeof(raw->ncoeff);
+               break;
+       }
+ 
++      if ((int)blk->ncoeff < 0)
++              return -EOVERFLOW;
++
+       cs_dsp_dbg(dsp, "Algorithm ID: %#x\n", blk->id);
+       cs_dsp_dbg(dsp, "Algorithm name: %.*s\n", blk->name_len, blk->name);
+       cs_dsp_dbg(dsp, "# of coefficient descriptors: %#x\n", blk->ncoeff);
++
++      return pos;
+ }
+ 
+-static inline void cs_dsp_coeff_parse_coeff(struct cs_dsp *dsp, const u8 
**data,
+-                                          struct cs_dsp_coeff_parsed_coeff 
*blk)
++static int cs_dsp_coeff_parse_coeff(struct cs_dsp *dsp,
++                                  const struct wmfw_region *region,
++                                  unsigned int pos,
++                                  struct cs_dsp_coeff_parsed_coeff *blk)
+ {
+       const struct wmfw_adsp_coeff_data *raw;
++      unsigned int data_len = le32_to_cpu(region->len);
++      unsigned int blk_len, blk_end_pos;
+       const u8 *tmp;
+-      int length;
++
++      raw = (const struct wmfw_adsp_coeff_data *)&region->data[pos];
++      if (sizeof(raw->hdr) > (data_len - pos))
++              return -EOVERFLOW;
++
++      blk_len = le32_to_cpu(raw->hdr.size);
++      if (blk_len > S32_MAX)
++              return -EOVERFLOW;
++
++      if (blk_len > (data_len - pos - sizeof(raw->hdr)))
++              return -EOVERFLOW;
++
++      blk_end_pos = pos + sizeof(raw->hdr) + blk_len;
++
++      blk->offset = le16_to_cpu(raw->hdr.offset);
++      blk->mem_type = le16_to_cpu(raw->hdr.type);
+ 
+       switch (dsp->fw_ver) {
+       case 0:
+       case 1:
+-              raw = (const struct wmfw_adsp_coeff_data *)*data;
+-              *data = *data + sizeof(raw->hdr) + le32_to_cpu(raw->hdr.size);
++              if (sizeof(*raw) > (data_len - pos))
++                      return -EOVERFLOW;
+ 
+-              blk->offset = le16_to_cpu(raw->hdr.offset);
+-              blk->mem_type = le16_to_cpu(raw->hdr.type);
+               blk->name = raw->name;
+-              blk->name_len = strlen(raw->name);
++              blk->name_len = strnlen(raw->name, ARRAY_SIZE(raw->name));
+               blk->ctl_type = le16_to_cpu(raw->ctl_type);
+               blk->flags = le16_to_cpu(raw->flags);
+               blk->len = le32_to_cpu(raw->len);
+               break;
+       default:
+-              tmp = *data;
+-              blk->offset = cs_dsp_coeff_parse_int(sizeof(raw->hdr.offset), 
&tmp);
+-              blk->mem_type = cs_dsp_coeff_parse_int(sizeof(raw->hdr.type), 
&tmp);
+-              length = cs_dsp_coeff_parse_int(sizeof(raw->hdr.size), &tmp);
+-              blk->name_len = cs_dsp_coeff_parse_string(sizeof(u8), &tmp,
++              pos += sizeof(raw->hdr);
++              tmp = &region->data[pos];
++              blk->name_len = cs_dsp_coeff_parse_string(sizeof(u8), &tmp, 
data_len - pos,
+                                                         &blk->name);
+-              cs_dsp_coeff_parse_string(sizeof(u8), &tmp, NULL);
+-              cs_dsp_coeff_parse_string(sizeof(u16), &tmp, NULL);
++              if (!tmp)
++                      return -EOVERFLOW;
++
++              pos = tmp - region->data;
++              cs_dsp_coeff_parse_string(sizeof(u8), &tmp, data_len - pos, 
NULL);
++              if (!tmp)
++                      return -EOVERFLOW;
++
++              pos = tmp - region->data;
++              cs_dsp_coeff_parse_string(sizeof(u16), &tmp, data_len - pos, 
NULL);
++              if (!tmp)
++                      return -EOVERFLOW;
++
++              pos = tmp - region->data;
++              if (sizeof(raw->ctl_type) + sizeof(raw->flags) + 
sizeof(raw->len) >
++                  (data_len - pos))
++                      return -EOVERFLOW;
++
+               blk->ctl_type = cs_dsp_coeff_parse_int(sizeof(raw->ctl_type), 
&tmp);
++              pos += sizeof(raw->ctl_type);
+               blk->flags = cs_dsp_coeff_parse_int(sizeof(raw->flags), &tmp);
++              pos += sizeof(raw->flags);
+               blk->len = cs_dsp_coeff_parse_int(sizeof(raw->len), &tmp);
+-
+-              *data = *data + sizeof(raw->hdr) + length;
+               break;
+       }
+ 
+@@ -1131,6 +1207,8 @@ static inline void cs_dsp_coeff_parse_coeff(struct 
cs_dsp *dsp, const u8 **data,
+       cs_dsp_dbg(dsp, "\tCoefficient flags: %#x\n", blk->flags);
+       cs_dsp_dbg(dsp, "\tALSA control type: %#x\n", blk->ctl_type);
+       cs_dsp_dbg(dsp, "\tALSA control len: %#x\n", blk->len);
++
++      return blk_end_pos;
+ }
+ 
+ static int cs_dsp_check_coeff_flags(struct cs_dsp *dsp,
+@@ -1154,12 +1232,16 @@ static int cs_dsp_parse_coeff(struct cs_dsp *dsp,
+       struct cs_dsp_alg_region alg_region = {};
+       struct cs_dsp_coeff_parsed_alg alg_blk;
+       struct cs_dsp_coeff_parsed_coeff coeff_blk;
+-      const u8 *data = region->data;
+-      int i, ret;
++      int i, pos, ret;
++
++      pos = cs_dsp_coeff_parse_alg(dsp, region, &alg_blk);
++      if (pos < 0)
++              return pos;
+ 
+-      cs_dsp_coeff_parse_alg(dsp, &data, &alg_blk);
+       for (i = 0; i < alg_blk.ncoeff; i++) {
+-              cs_dsp_coeff_parse_coeff(dsp, &data, &coeff_blk);
++              pos = cs_dsp_coeff_parse_coeff(dsp, region, pos, &coeff_blk);
++              if (pos < 0)
++                      return pos;
+ 
+               switch (coeff_blk.ctl_type) {
+               case WMFW_CTL_TYPE_BYTES:
+@@ -1228,6 +1310,10 @@ static unsigned int cs_dsp_adsp1_parse_sizes(struct 
cs_dsp *dsp,
+       const struct wmfw_adsp1_sizes *adsp1_sizes;
+ 
+       adsp1_sizes = (void *)&firmware->data[pos];
++      if (sizeof(*adsp1_sizes) > firmware->size - pos) {
++              cs_dsp_err(dsp, "%s: file truncated\n", file);
++              return 0;
++      }
+ 
+       cs_dsp_dbg(dsp, "%s: %d DM, %d PM, %d ZM\n", file,
+                  le32_to_cpu(adsp1_sizes->dm), le32_to_cpu(adsp1_sizes->pm),
+@@ -1244,6 +1330,10 @@ static unsigned int cs_dsp_adsp2_parse_sizes(struct 
cs_dsp *dsp,
+       const struct wmfw_adsp2_sizes *adsp2_sizes;
+ 
+       adsp2_sizes = (void *)&firmware->data[pos];
++      if (sizeof(*adsp2_sizes) > firmware->size - pos) {
++              cs_dsp_err(dsp, "%s: file truncated\n", file);
++              return 0;
++      }
+ 
+       cs_dsp_dbg(dsp, "%s: %d XM, %d YM %d PM, %d ZM\n", file,
+                  le32_to_cpu(adsp2_sizes->xm), le32_to_cpu(adsp2_sizes->ym),
+@@ -1283,7 +1373,6 @@ static int cs_dsp_load(struct cs_dsp *dsp, const struct 
firmware *firmware,
+       struct regmap *regmap = dsp->regmap;
+       unsigned int pos = 0;
+       const struct wmfw_header *header;
+-      const struct wmfw_adsp1_sizes *adsp1_sizes;
+       const struct wmfw_footer *footer;
+       const struct wmfw_region *region;
+       const struct cs_dsp_region *mem;
+@@ -1296,10 +1385,8 @@ static int cs_dsp_load(struct cs_dsp *dsp, const struct 
firmware *firmware,
+ 
+       ret = -EINVAL;
+ 
+-      pos = sizeof(*header) + sizeof(*adsp1_sizes) + sizeof(*footer);
+-      if (pos >= firmware->size) {
+-              cs_dsp_err(dsp, "%s: file too short, %zu bytes\n",
+-                         file, firmware->size);
++      if (sizeof(*header) >= firmware->size) {
++              ret = -EOVERFLOW;
+               goto out_fw;
+       }
+ 
+@@ -1327,22 +1414,36 @@ static int cs_dsp_load(struct cs_dsp *dsp, const 
struct firmware *firmware,
+ 
+       pos = sizeof(*header);
+       pos = dsp->ops->parse_sizes(dsp, file, pos, firmware);
++      if ((pos == 0) || (sizeof(*footer) > firmware->size - pos)) {
++              ret = -EOVERFLOW;
++              goto out_fw;
++      }
+ 
+       footer = (void *)&firmware->data[pos];
+       pos += sizeof(*footer);
+ 
+       if (le32_to_cpu(header->len) != pos) {
+-              cs_dsp_err(dsp, "%s: unexpected header length %d\n",
+-                         file, le32_to_cpu(header->len));
++              ret = -EOVERFLOW;
+               goto out_fw;
+       }
+ 
+       cs_dsp_dbg(dsp, "%s: timestamp %llu\n", file,
+                  le64_to_cpu(footer->timestamp));
+ 
+-      while (pos < firmware->size &&
+-             sizeof(*region) < firmware->size - pos) {
++      while (pos < firmware->size) {
++              /* Is there enough data for a complete block header? */
++              if (sizeof(*region) > firmware->size - pos) {
++                      ret = -EOVERFLOW;
++                      goto out_fw;
++              }
++
+               region = (void *)&(firmware->data[pos]);
++
++              if (le32_to_cpu(region->len) > firmware->size - pos - 
sizeof(*region)) {
++                      ret = -EOVERFLOW;
++                      goto out_fw;
++              }
++
+               region_name = "Unknown";
+               reg = 0;
+               text = NULL;
+@@ -1399,16 +1500,6 @@ static int cs_dsp_load(struct cs_dsp *dsp, const struct 
firmware *firmware,
+                          regions, le32_to_cpu(region->len), offset,
+                          region_name);
+ 
+-              if (le32_to_cpu(region->len) >
+-                  firmware->size - pos - sizeof(*region)) {
+-                      cs_dsp_err(dsp,
+-                                 "%s.%d: %s region len %d bytes exceeds file 
length %zu\n",
+-                                 file, regions, region_name,
+-                                 le32_to_cpu(region->len), firmware->size);
+-                      ret = -EINVAL;
+-                      goto out_fw;
+-              }
+-
+               if (text) {
+                       memcpy(text, region->data, le32_to_cpu(region->len));
+                       cs_dsp_info(dsp, "%s: %s\n", file, text);
+@@ -1459,6 +1550,9 @@ static int cs_dsp_load(struct cs_dsp *dsp, const struct 
firmware *firmware,
+       cs_dsp_buf_free(&buf_list);
+       kfree(text);
+ 
++      if (ret == -EOVERFLOW)
++              cs_dsp_err(dsp, "%s: file content overflows file data\n", file);
++
+       return ret;
+ }
+ 
+@@ -2026,10 +2120,20 @@ static int cs_dsp_load_coeff(struct cs_dsp *dsp, const 
struct firmware *firmware
+       pos = le32_to_cpu(hdr->len);
+ 
+       blocks = 0;
+-      while (pos < firmware->size &&
+-             sizeof(*blk) < firmware->size - pos) {
++      while (pos < firmware->size) {
++              /* Is there enough data for a complete block header? */
++              if (sizeof(*blk) > firmware->size - pos) {
++                      ret = -EOVERFLOW;
++                      goto out_fw;
++              }
++
+               blk = (void *)(&firmware->data[pos]);
+ 
++              if (le32_to_cpu(blk->len) > firmware->size - pos - 
sizeof(*blk)) {
++                      ret = -EOVERFLOW;
++                      goto out_fw;
++              }
++
+               type = le16_to_cpu(blk->type);
+               offset = le16_to_cpu(blk->offset);
+               version = le32_to_cpu(blk->ver) >> 8;
+@@ -2125,17 +2229,6 @@ static int cs_dsp_load_coeff(struct cs_dsp *dsp, const 
struct firmware *firmware
+               }
+ 
+               if (reg) {
+-                      if (le32_to_cpu(blk->len) >
+-                          firmware->size - pos - sizeof(*blk)) {
+-                              cs_dsp_err(dsp,
+-                                         "%s.%d: %s region len %d bytes 
exceeds file length %zu\n",
+-                                         file, blocks, region_name,
+-                                         le32_to_cpu(blk->len),
+-                                         firmware->size);
+-                              ret = -EINVAL;
+-                              goto out_fw;
+-                      }
+-
+                       buf = cs_dsp_buf_alloc(blk->data,
+                                              le32_to_cpu(blk->len),
+                                              &buf_list);
+@@ -2175,6 +2268,10 @@ static int cs_dsp_load_coeff(struct cs_dsp *dsp, const 
struct firmware *firmware
+       regmap_async_complete(regmap);
+       cs_dsp_buf_free(&buf_list);
+       kfree(text);
++
++      if (ret == -EOVERFLOW)
++              cs_dsp_err(dsp, "%s: file content overflows file data\n", file);
++
+       return ret;
+ }
+ 
+diff --git a/drivers/i2c/busses/i2c-rcar.c b/drivers/i2c/busses/i2c-rcar.c
+index cef82b205c261..d0098e342ba22 100644
+--- a/drivers/i2c/busses/i2c-rcar.c
++++ b/drivers/i2c/busses/i2c-rcar.c
+@@ -114,6 +114,7 @@ enum rcar_i2c_type {
+       I2C_RCAR_GEN1,
+       I2C_RCAR_GEN2,
+       I2C_RCAR_GEN3,
++      I2C_RCAR_GEN4,
+ };
+ 
+ struct rcar_i2c_priv {
+@@ -223,6 +224,14 @@ static void rcar_i2c_init(struct rcar_i2c_priv *priv)
+ 
+ }
+ 
++static void rcar_i2c_reset_slave(struct rcar_i2c_priv *priv)
++{
++      rcar_i2c_write(priv, ICSIER, 0);
++      rcar_i2c_write(priv, ICSSR, 0);
++      rcar_i2c_write(priv, ICSCR, SDBS);
++      rcar_i2c_write(priv, ICSAR, 0); /* Gen2: must be 0 if not using slave */
++}
++
+ static int rcar_i2c_bus_barrier(struct rcar_i2c_priv *priv)
+ {
+       int ret;
+@@ -386,8 +395,8 @@ static void rcar_i2c_cleanup_dma(struct rcar_i2c_priv 
*priv, bool terminate)
+       dma_unmap_single(chan->device->dev, sg_dma_address(&priv->sg),
+                        sg_dma_len(&priv->sg), priv->dma_direction);
+ 
+-      /* Gen3 can only do one RXDMA per transfer and we just completed it */
+-      if (priv->devtype == I2C_RCAR_GEN3 &&
++      /* Gen3+ can only do one RXDMA per transfer and we just completed it */
++      if (priv->devtype >= I2C_RCAR_GEN3 &&
+           priv->dma_direction == DMA_FROM_DEVICE)
+               priv->flags |= ID_P_NO_RXDMA;
+ 
+@@ -815,6 +824,10 @@ static int rcar_i2c_do_reset(struct rcar_i2c_priv *priv)
+ {
+       int ret;
+ 
++      /* Don't reset if a slave instance is currently running */
++      if (priv->slave)
++              return -EISCONN;
++
+       ret = reset_control_reset(priv->rstc);
+       if (ret)
+               return ret;
+@@ -841,14 +854,12 @@ static int rcar_i2c_master_xfer(struct i2c_adapter *adap,
+       if (ret < 0)
+               goto out;
+ 
+-      /* Gen3 needs a reset before allowing RXDMA once */
+-      if (priv->devtype == I2C_RCAR_GEN3) {
+-              priv->flags |= ID_P_NO_RXDMA;
+-              if (!IS_ERR(priv->rstc)) {
+-                      ret = rcar_i2c_do_reset(priv);
+-                      if (ret == 0)
+-                              priv->flags &= ~ID_P_NO_RXDMA;
+-              }
++      /* Gen3+ needs a reset. That also allows RXDMA once */
++      if (priv->devtype >= I2C_RCAR_GEN3) {
++              ret = rcar_i2c_do_reset(priv);
++              if (ret)
++                      goto out;
++              priv->flags &= ~ID_P_NO_RXDMA;
+       }
+ 
+       rcar_i2c_init(priv);
+@@ -975,11 +986,8 @@ static int rcar_unreg_slave(struct i2c_client *slave)
+ 
+       /* ensure no irq is running before clearing ptr */
+       disable_irq(priv->irq);
+-      rcar_i2c_write(priv, ICSIER, 0);
+-      rcar_i2c_write(priv, ICSSR, 0);
++      rcar_i2c_reset_slave(priv);
+       enable_irq(priv->irq);
+-      rcar_i2c_write(priv, ICSCR, SDBS);
+-      rcar_i2c_write(priv, ICSAR, 0); /* Gen2: must be 0 if not using slave */
+ 
+       priv->slave = NULL;
+ 
+@@ -1032,7 +1040,7 @@ static const struct of_device_id rcar_i2c_dt_ids[] = {
+       { .compatible = "renesas,rcar-gen1-i2c", .data = (void *)I2C_RCAR_GEN1 
},
+       { .compatible = "renesas,rcar-gen2-i2c", .data = (void *)I2C_RCAR_GEN2 
},
+       { .compatible = "renesas,rcar-gen3-i2c", .data = (void *)I2C_RCAR_GEN3 
},
+-      { .compatible = "renesas,rcar-gen4-i2c", .data = (void *)I2C_RCAR_GEN3 
},
++      { .compatible = "renesas,rcar-gen4-i2c", .data = (void *)I2C_RCAR_GEN4 
},
+       {},
+ };
+ MODULE_DEVICE_TABLE(of, rcar_i2c_dt_ids);
+@@ -1092,22 +1100,15 @@ static int rcar_i2c_probe(struct platform_device *pdev)
+               goto out_pm_disable;
+       }
+ 
+-      rcar_i2c_write(priv, ICSAR, 0); /* Gen2: must be 0 if not using slave */
++      /* Bring hardware to known state */
++      rcar_i2c_init(priv);
++      rcar_i2c_reset_slave(priv);
+ 
+       if (priv->devtype < I2C_RCAR_GEN3) {
+               irqflags |= IRQF_NO_THREAD;
+               irqhandler = rcar_i2c_gen2_irq;
+       }
+ 
+-      if (priv->devtype == I2C_RCAR_GEN3) {
+-              priv->rstc = devm_reset_control_get_exclusive(&pdev->dev, NULL);
+-              if (!IS_ERR(priv->rstc)) {
+-                      ret = reset_control_status(priv->rstc);
+-                      if (ret < 0)
+-                              priv->rstc = ERR_PTR(-ENOTSUPP);
+-              }
+-      }
+-
+       /* Stay always active when multi-master to keep arbitration working */
+       if (of_property_read_bool(dev->of_node, "multi-master"))
+               priv->flags |= ID_P_PM_BLOCKED;
+@@ -1117,6 +1118,22 @@ static int rcar_i2c_probe(struct platform_device *pdev)
+       if (of_property_read_bool(dev->of_node, "smbus"))
+               priv->flags |= ID_P_HOST_NOTIFY;
+ 
++      /* R-Car Gen3+ needs a reset before every transfer */
++      if (priv->devtype >= I2C_RCAR_GEN3) {
++              priv->rstc = devm_reset_control_get_exclusive(&pdev->dev, NULL);
++              if (IS_ERR(priv->rstc)) {
++                      ret = PTR_ERR(priv->rstc);
++                      goto out_pm_put;
++              }
++
++              ret = reset_control_status(priv->rstc);
++              if (ret < 0)
++                      goto out_pm_put;
++
++              /* hard reset disturbs HostNotify local target, so disable it */
++              priv->flags &= ~ID_P_HOST_NOTIFY;
++      }
++
+       ret = platform_get_irq(pdev, 0);
+       if (ret < 0)
+               goto out_pm_put;
+diff --git a/drivers/i2c/i2c-core-base.c b/drivers/i2c/i2c-core-base.c
+index 8af82f42af30b..d6a879f1542c5 100644
+--- a/drivers/i2c/i2c-core-base.c
++++ b/drivers/i2c/i2c-core-base.c
+@@ -1049,6 +1049,7 @@ EXPORT_SYMBOL(i2c_find_device_by_fwnode);
+ 
+ static const struct i2c_device_id dummy_id[] = {
+       { "dummy", 0 },
++      { "smbus_host_notify", 0 },
+       { },
+ };
+ 
+diff --git a/drivers/i2c/i2c-slave-testunit.c 
b/drivers/i2c/i2c-slave-testunit.c
+index 54c08f48a8b85..b9967a5a7d255 100644
+--- a/drivers/i2c/i2c-slave-testunit.c
++++ b/drivers/i2c/i2c-slave-testunit.c
+@@ -118,6 +118,13 @@ static int i2c_slave_testunit_slave_cb(struct i2c_client 
*client,
+                       queue_delayed_work(system_long_wq, &tu->worker,
+                                          msecs_to_jiffies(10 * 
tu->regs[TU_REG_DELAY]));
+               }
++
++              /*
++               * Reset reg_idx to avoid that work gets queued again in case of
++               * STOP after a following read message. But do not clear TU regs
++               * here because we still need them in the workqueue!
++               */
++              tu->reg_idx = 0;
+               break;
+ 
+       case I2C_SLAVE_WRITE_REQUESTED:
+diff --git a/drivers/misc/fastrpc.c b/drivers/misc/fastrpc.c
+index 69cc24962706c..6c94364019c81 100644
+--- a/drivers/misc/fastrpc.c
++++ b/drivers/misc/fastrpc.c
+@@ -1509,16 +1509,20 @@ static int fastrpc_get_info_from_dsp(struct 
fastrpc_user *fl, uint32_t *dsp_attr
+ {
+       struct fastrpc_invoke_args args[2] = { 0 };
+ 
+-      /* Capability filled in userspace */
++      /*
++       * Capability filled in userspace. This carries the information
++       * about the remoteproc support which is fetched from the remoteproc
++       * sysfs node by userspace.
++       */
+       dsp_attr_buf[0] = 0;
++      dsp_attr_buf_len -= 1;
+ 
+       args[0].ptr = (u64)(uintptr_t)&dsp_attr_buf_len;
+       args[0].length = sizeof(dsp_attr_buf_len);
+       args[0].fd = -1;
+       args[1].ptr = (u64)(uintptr_t)&dsp_attr_buf[1];
+-      args[1].length = dsp_attr_buf_len;
++      args[1].length = dsp_attr_buf_len * sizeof(u32);
+       args[1].fd = -1;
+-      fl->pd = USER_PD;
+ 
+       return fastrpc_internal_invoke(fl, true, FASTRPC_DSP_UTILITIES_HANDLE,
+                                      FASTRPC_SCALARS(0, 1, 1), args);
+@@ -1546,7 +1550,7 @@ static int fastrpc_get_info_from_kernel(struct 
fastrpc_ioctl_capability *cap,
+       if (!dsp_attributes)
+               return -ENOMEM;
+ 
+-      err = fastrpc_get_info_from_dsp(fl, dsp_attributes, 
FASTRPC_MAX_DSP_ATTRIBUTES_LEN);
++      err = fastrpc_get_info_from_dsp(fl, dsp_attributes, 
FASTRPC_MAX_DSP_ATTRIBUTES);
+       if (err == DSP_UNSUPPORTED_API) {
+               dev_info(&cctx->rpdev->dev,
+                        "Warning: DSP capabilities not supported on domain: 
%d\n", domain);
+@@ -1599,7 +1603,7 @@ static int fastrpc_get_dsp_info(struct fastrpc_user *fl, 
char __user *argp)
+       if (err)
+               return err;
+ 
+-      if (copy_to_user(argp, &cap.capability, sizeof(cap.capability)))
++      if (copy_to_user(argp, &cap, sizeof(cap)))
+               return -EFAULT;
+ 
+       return 0;
+diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c 
b/drivers/net/ethernet/intel/i40e/i40e_main.c
+index 9efd4b962dce2..1194dcacbd29e 100644
+--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
++++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
+@@ -13315,6 +13315,10 @@ static int i40e_xdp_setup(struct i40e_vsi *vsi, 
struct bpf_prog *prog,
+       bool need_reset;
+       int i;
+ 
++      /* VSI shall be deleted in a moment, block loading new programs */
++      if (prog && test_bit(__I40E_IN_REMOVE, pf->state))
++              return -EINVAL;
++
+       /* Don't allow frames that span over multiple buffers */
+       if (frame_size > i40e_calculate_vsi_rx_buf_len(vsi)) {
+               NL_SET_ERR_MSG_MOD(extack, "MTU too large to enable XDP");
+@@ -13323,14 +13327,9 @@ static int i40e_xdp_setup(struct i40e_vsi *vsi, 
struct bpf_prog *prog,
+ 
+       /* When turning XDP on->off/off->on we reset and rebuild the rings. */
+       need_reset = (i40e_enabled_xdp_vsi(vsi) != !!prog);
+-
+       if (need_reset)
+               i40e_prep_for_reset(pf);
+ 
+-      /* VSI shall be deleted in a moment, just return EINVAL */
+-      if (test_bit(__I40E_IN_REMOVE, pf->state))
+-              return -EINVAL;
+-
+       old_prog = xchg(&vsi->xdp_prog, prog);
+ 
+       if (need_reset) {
+diff --git a/drivers/net/ethernet/lantiq_etop.c 
b/drivers/net/ethernet/lantiq_etop.c
+index f5961bdcc4809..61baf1da76eea 100644
+--- a/drivers/net/ethernet/lantiq_etop.c
++++ b/drivers/net/ethernet/lantiq_etop.c
+@@ -217,9 +217,9 @@ ltq_etop_free_channel(struct net_device *dev, struct 
ltq_etop_chan *ch)
+       if (ch->dma.irq)
+               free_irq(ch->dma.irq, priv);
+       if (IS_RX(ch->idx)) {
+-              int desc;
++              struct ltq_dma_channel *dma = &ch->dma;
+ 
+-              for (desc = 0; desc < LTQ_DESC_NUM; desc++)
++              for (dma->desc = 0; dma->desc < LTQ_DESC_NUM; dma->desc++)
+                       dev_kfree_skb_any(ch->skb[ch->dma.desc]);
+       }
+ }
+diff --git a/drivers/net/ethernet/marvell/octeontx2/af/mbox.h 
b/drivers/net/ethernet/marvell/octeontx2/af/mbox.h
+index be70269e91684..c288589446935 100644
+--- a/drivers/net/ethernet/marvell/octeontx2/af/mbox.h
++++ b/drivers/net/ethernet/marvell/octeontx2/af/mbox.h
+@@ -1084,6 +1084,8 @@ struct nix_vtag_config_rsp {
+        */
+ };
+ 
++#define NIX_FLOW_KEY_TYPE_L3_L4_MASK (~(0xf << 28))
++
+ struct nix_rss_flowkey_cfg {
+       struct mbox_msghdr hdr;
+       int     mcam_index;  /* MCAM entry index to modify */
+@@ -1109,6 +1111,10 @@ struct nix_rss_flowkey_cfg {
+ #define NIX_FLOW_KEY_TYPE_IPV4_PROTO  BIT(21)
+ #define NIX_FLOW_KEY_TYPE_AH          BIT(22)
+ #define NIX_FLOW_KEY_TYPE_ESP         BIT(23)
++#define NIX_FLOW_KEY_TYPE_L4_DST_ONLY BIT(28)
++#define NIX_FLOW_KEY_TYPE_L4_SRC_ONLY BIT(29)
++#define NIX_FLOW_KEY_TYPE_L3_DST_ONLY BIT(30)
++#define NIX_FLOW_KEY_TYPE_L3_SRC_ONLY BIT(31)
+       u32     flowkey_cfg; /* Flowkey types selected */
+       u8      group;       /* RSS context or group */
+ };
+@@ -1627,7 +1633,9 @@ struct cpt_lf_alloc_req_msg {
+       u16 nix_pf_func;
+       u16 sso_pf_func;
+       u16 eng_grpmsk;
+-      int blkaddr;
++      u8 blkaddr;
++      u8 ctx_ilen_valid : 1;
++      u8 ctx_ilen : 7;
+ };
+ 
+ #define CPT_INLINE_INBOUND      0
+diff --git a/drivers/net/ethernet/marvell/octeontx2/af/npc.h 
b/drivers/net/ethernet/marvell/octeontx2/af/npc.h
+index aaff91bc7415a..32a9425a2b1ea 100644
+--- a/drivers/net/ethernet/marvell/octeontx2/af/npc.h
++++ b/drivers/net/ethernet/marvell/octeontx2/af/npc.h
+@@ -63,8 +63,13 @@ enum npc_kpu_lb_ltype {
+       NPC_LT_LB_CUSTOM1 = 0xF,
+ };
+ 
++/* Don't modify ltypes up to IP6_EXT, otherwise length and checksum of IP
++ * headers may not be checked correctly. IPv4 ltypes and IPv6 ltypes must
++ * differ only at bit 0 so mask 0xE can be used to detect extended headers.
++ */
+ enum npc_kpu_lc_ltype {
+-      NPC_LT_LC_IP = 1,
++      NPC_LT_LC_PTP = 1,
++      NPC_LT_LC_IP,
+       NPC_LT_LC_IP_OPT,
+       NPC_LT_LC_IP6,
+       NPC_LT_LC_IP6_EXT,
+@@ -72,7 +77,6 @@ enum npc_kpu_lc_ltype {
+       NPC_LT_LC_RARP,
+       NPC_LT_LC_MPLS,
+       NPC_LT_LC_NSH,
+-      NPC_LT_LC_PTP,
+       NPC_LT_LC_FCOE,
+       NPC_LT_LC_NGIO,
+       NPC_LT_LC_CUSTOM0 = 0xE,
+diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu.c 
b/drivers/net/ethernet/marvell/octeontx2/af/rvu.c
+index a7034b47ed6c9..c7829265eade9 100644
+--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu.c
++++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu.c
+@@ -1638,7 +1638,7 @@ static int rvu_check_rsrc_availability(struct rvu *rvu,
+               if (req->ssow > block->lf.max) {
+                       dev_err(&rvu->pdev->dev,
+                               "Func 0x%x: Invalid SSOW req, %d > max %d\n",
+-                               pcifunc, req->sso, block->lf.max);
++                               pcifunc, req->ssow, block->lf.max);
+                       return -EINVAL;
+               }
+               mappedlfs = rvu_get_rsrc_mapcount(pfvf, block->addr);
+diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_cpt.c 
b/drivers/net/ethernet/marvell/octeontx2/af/rvu_cpt.c
+index 6fb02b93c1718..b226a4d376aab 100644
+--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_cpt.c
++++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_cpt.c
+@@ -17,7 +17,7 @@
+ #define       PCI_DEVID_OTX2_CPT10K_PF 0xA0F2
+ 
+ /* Length of initial context fetch in 128 byte words */
+-#define CPT_CTX_ILEN    2ULL
++#define CPT_CTX_ILEN    1ULL
+ 
+ #define cpt_get_eng_sts(e_min, e_max, rsp, etype)                   \
+ ({                                                                  \
+@@ -429,8 +429,12 @@ int rvu_mbox_handler_cpt_lf_alloc(struct rvu *rvu,
+ 
+               /* Set CPT LF group and priority */
+               val = (u64)req->eng_grpmsk << 48 | 1;
+-              if (!is_rvu_otx2(rvu))
+-                      val |= (CPT_CTX_ILEN << 17);
++              if (!is_rvu_otx2(rvu)) {
++                      if (req->ctx_ilen_valid)
++                              val |= (req->ctx_ilen << 17);
++                      else
++                              val |= (CPT_CTX_ILEN << 17);
++              }
+ 
+               rvu_write64(rvu, blkaddr, CPT_AF_LFX_CTL(cptlf), val);
+ 
+@@ -692,7 +696,8 @@ int rvu_mbox_handler_cpt_rd_wr_register(struct rvu *rvu,
+                                       struct cpt_rd_wr_reg_msg *req,
+                                       struct cpt_rd_wr_reg_msg *rsp)
+ {
+-      int blkaddr;
++      u64 offset = req->reg_offset;
++      int blkaddr, lf;
+ 
+       blkaddr = validate_and_get_cpt_blkaddr(req->blkaddr);
+       if (blkaddr < 0)
+@@ -703,17 +708,25 @@ int rvu_mbox_handler_cpt_rd_wr_register(struct rvu *rvu,
+           !is_cpt_vf(rvu, req->hdr.pcifunc))
+               return CPT_AF_ERR_ACCESS_DENIED;
+ 
+-      rsp->reg_offset = req->reg_offset;
+-      rsp->ret_val = req->ret_val;
+-      rsp->is_write = req->is_write;
+-
+       if (!is_valid_offset(rvu, req))
+               return CPT_AF_ERR_ACCESS_DENIED;
+ 
++      /* Translate local LF used by VFs to global CPT LF */
++      lf = rvu_get_lf(rvu, &rvu->hw->block[blkaddr], req->hdr.pcifunc,
++                      (offset & 0xFFF) >> 3);
++
++      /* Translate local LF's offset to global CPT LF's offset */
++      offset &= 0xFF000;
++      offset += lf << 3;
++
++      rsp->reg_offset = offset;
++      rsp->ret_val = req->ret_val;
++      rsp->is_write = req->is_write;
++
+       if (req->is_write)
+-              rvu_write64(rvu, blkaddr, req->reg_offset, req->val);
++              rvu_write64(rvu, blkaddr, offset, req->val);
+       else
+-              rsp->val = rvu_read64(rvu, blkaddr, req->reg_offset);
++              rsp->val = rvu_read64(rvu, blkaddr, offset);
+ 
+       return 0;
+ }
+diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c 
b/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c
+index 67080d5053e07..ef526408b0bd2 100644
+--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c
++++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c
+@@ -3354,6 +3354,11 @@ static int get_flowkey_alg_idx(struct nix_hw *nix_hw, 
u32 flow_cfg)
+       return -ERANGE;
+ }
+ 
++/* Mask to match ipv6(NPC_LT_LC_IP6) and ipv6 ext(NPC_LT_LC_IP6_EXT) */
++#define NPC_LT_LC_IP6_MATCH_MSK ((~(NPC_LT_LC_IP6 ^ NPC_LT_LC_IP6_EXT)) & 0xf)
++/* Mask to match both ipv4(NPC_LT_LC_IP) and ipv4 ext(NPC_LT_LC_IP_OPT) */
++#define NPC_LT_LC_IP_MATCH_MSK  ((~(NPC_LT_LC_IP ^ NPC_LT_LC_IP_OPT)) & 0xf)
++
+ static int set_flowkey_fields(struct nix_rx_flowkey_alg *alg, u32 flow_cfg)
+ {
+       int idx, nr_field, key_off, field_marker, keyoff_marker;
+@@ -3361,6 +3366,7 @@ static int set_flowkey_fields(struct nix_rx_flowkey_alg 
*alg, u32 flow_cfg)
+       struct nix_rx_flowkey_alg *field;
+       struct nix_rx_flowkey_alg tmp;
+       u32 key_type, valid_key;
++      u32 l3_l4_src_dst;
+       int l4_key_offset = 0;
+ 
+       if (!alg)
+@@ -3388,6 +3394,15 @@ static int set_flowkey_fields(struct nix_rx_flowkey_alg 
*alg, u32 flow_cfg)
+        * group_member - Enabled when protocol is part of a group.
+        */
+ 
++      /* Last 4 bits (31:28) are reserved to specify SRC, DST
++       * selection for L3, L4 i.e IPV[4,6]_SRC, IPV[4,6]_DST,
++       * [TCP,UDP,SCTP]_SRC, [TCP,UDP,SCTP]_DST
++       * 31 => L3_SRC, 30 => L3_DST, 29 => L4_SRC, 28 => L4_DST
++       */
++      l3_l4_src_dst = flow_cfg;
++      /* Reset these 4 bits, so that these won't be part of key */
++      flow_cfg &= NIX_FLOW_KEY_TYPE_L3_L4_MASK;
++
+       keyoff_marker = 0; max_key_off = 0; group_member = 0;
+       nr_field = 0; key_off = 0; field_marker = 1;
+       field = &tmp; max_bit_pos = fls(flow_cfg);
+@@ -3413,7 +3428,7 @@ static int set_flowkey_fields(struct nix_rx_flowkey_alg 
*alg, u32 flow_cfg)
+                       field->hdr_offset = 9; /* offset */
+                       field->bytesm1 = 0; /* 1 byte */
+                       field->ltype_match = NPC_LT_LC_IP;
+-                      field->ltype_mask = 0xF;
++                      field->ltype_mask = NPC_LT_LC_IP_MATCH_MSK;
+                       break;
+               case NIX_FLOW_KEY_TYPE_IPV4:
+               case NIX_FLOW_KEY_TYPE_INNR_IPV4:
+@@ -3425,7 +3440,22 @@ static int set_flowkey_fields(struct nix_rx_flowkey_alg 
*alg, u32 flow_cfg)
+                       }
+                       field->hdr_offset = 12; /* SIP offset */
+                       field->bytesm1 = 7; /* SIP + DIP, 8 bytes */
+-                      field->ltype_mask = 0xF; /* Match only IPv4 */
++
++                      /* Only SIP */
++                      if (l3_l4_src_dst & NIX_FLOW_KEY_TYPE_L3_SRC_ONLY)
++                              field->bytesm1 = 3; /* SIP, 4 bytes */
++
++                      if (l3_l4_src_dst & NIX_FLOW_KEY_TYPE_L3_DST_ONLY) {
++                              /* Both SIP + DIP */
++                              if (field->bytesm1 == 3) {
++                                      field->bytesm1 = 7; /* SIP + DIP, 8B */
++                              } else {
++                                      /* Only DIP */
++                                      field->hdr_offset = 16; /* DIP off */
++                                      field->bytesm1 = 3; /* DIP, 4 bytes */
++                              }
++                      }
++                      field->ltype_mask = NPC_LT_LC_IP_MATCH_MSK;
+                       keyoff_marker = false;
+                       break;
+               case NIX_FLOW_KEY_TYPE_IPV6:
+@@ -3438,7 +3468,23 @@ static int set_flowkey_fields(struct nix_rx_flowkey_alg 
*alg, u32 flow_cfg)
+                       }
+                       field->hdr_offset = 8; /* SIP offset */
+                       field->bytesm1 = 31; /* SIP + DIP, 32 bytes */
+-                      field->ltype_mask = 0xF; /* Match only IPv6 */
++
++                      /* Only SIP */
++                      if (l3_l4_src_dst & NIX_FLOW_KEY_TYPE_L3_SRC_ONLY)
++                              field->bytesm1 = 15; /* SIP, 16 bytes */
++
++                      if (l3_l4_src_dst & NIX_FLOW_KEY_TYPE_L3_DST_ONLY) {
++                              /* Both SIP + DIP */
++                              if (field->bytesm1 == 15) {
++                                      /* SIP + DIP, 32 bytes */
++                                      field->bytesm1 = 31;
++                              } else {
++                                      /* Only DIP */
++                                      field->hdr_offset = 24; /* DIP off */
++                                      field->bytesm1 = 15; /* DIP,16 bytes */
++                              }
++                      }
++                      field->ltype_mask = NPC_LT_LC_IP6_MATCH_MSK;
+                       break;
+               case NIX_FLOW_KEY_TYPE_TCP:
+               case NIX_FLOW_KEY_TYPE_UDP:
+@@ -3453,6 +3499,21 @@ static int set_flowkey_fields(struct nix_rx_flowkey_alg 
*alg, u32 flow_cfg)
+                               field->lid = NPC_LID_LH;
+                       field->bytesm1 = 3; /* Sport + Dport, 4 bytes */
+ 
++                      if (l3_l4_src_dst & NIX_FLOW_KEY_TYPE_L4_SRC_ONLY)
++                              field->bytesm1 = 1; /* SRC, 2 bytes */
++
++                      if (l3_l4_src_dst & NIX_FLOW_KEY_TYPE_L4_DST_ONLY) {
++                              /* Both SRC + DST */
++                              if (field->bytesm1 == 1) {
++                                      /* SRC + DST, 4 bytes */
++                                      field->bytesm1 = 3;
++                              } else {
++                                      /* Only DIP */
++                                      field->hdr_offset = 2; /* DST off */
++                                      field->bytesm1 = 1; /* DST, 2 bytes */
++                              }
++                      }
++
+                       /* Enum values for NPC_LID_LD and NPC_LID_LG are same,
+                        * so no need to change the ltype_match, just change
+                        * the lid for inner protocols
+diff --git a/drivers/net/ethernet/mediatek/mtk_star_emac.c 
b/drivers/net/ethernet/mediatek/mtk_star_emac.c
+index 7050351250b7a..ad27749c0931c 100644
+--- a/drivers/net/ethernet/mediatek/mtk_star_emac.c
++++ b/drivers/net/ethernet/mediatek/mtk_star_emac.c
+@@ -1531,6 +1531,7 @@ static int mtk_star_probe(struct platform_device *pdev)
+ {
+       struct device_node *of_node;
+       struct mtk_star_priv *priv;
++      struct phy_device *phydev;
+       struct net_device *ndev;
+       struct device *dev;
+       void __iomem *base;
+@@ -1656,6 +1657,12 @@ static int mtk_star_probe(struct platform_device *pdev)
+       netif_napi_add(ndev, &priv->rx_napi, mtk_star_rx_poll);
+       netif_napi_add_tx(ndev, &priv->tx_napi, mtk_star_tx_poll);
+ 
++      phydev = of_phy_find_device(priv->phy_node);
++      if (phydev) {
++              phydev->mac_managed_pm = true;
++              put_device(&phydev->mdio.dev);
++      }
++
+       return devm_register_netdev(dev, ndev);
+ }
+ 
+diff --git a/drivers/net/ethernet/micrel/ks8851_common.c 
b/drivers/net/ethernet/micrel/ks8851_common.c
+index 6453c92f0fa7c..7fa1820db9cce 100644
+--- a/drivers/net/ethernet/micrel/ks8851_common.c
++++ b/drivers/net/ethernet/micrel/ks8851_common.c
+@@ -352,11 +352,11 @@ static irqreturn_t ks8851_irq(int irq, void *_ks)
+               netif_dbg(ks, intr, ks->netdev,
+                         "%s: txspace %d\n", __func__, tx_space);
+ 
+-              spin_lock(&ks->statelock);
++              spin_lock_bh(&ks->statelock);
+               ks->tx_space = tx_space;
+               if (netif_queue_stopped(ks->netdev))
+                       netif_wake_queue(ks->netdev);
+-              spin_unlock(&ks->statelock);
++              spin_unlock_bh(&ks->statelock);
+       }
+ 
+       if (status & IRQ_SPIBEI) {
+@@ -482,6 +482,7 @@ static int ks8851_net_open(struct net_device *dev)
+       ks8851_wrreg16(ks, KS_IER, ks->rc_ier);
+ 
+       ks->queued_len = 0;
++      ks->tx_space = ks8851_rdreg16(ks, KS_TXMIR);
+       netif_start_queue(ks->netdev);
+ 
+       netif_dbg(ks, ifup, ks->netdev, "network device up\n");
+@@ -635,14 +636,14 @@ static void ks8851_set_rx_mode(struct net_device *dev)
+ 
+       /* schedule work to do the actual set of the data if needed */
+ 
+-      spin_lock(&ks->statelock);
++      spin_lock_bh(&ks->statelock);
+ 
+       if (memcmp(&rxctrl, &ks->rxctrl, sizeof(rxctrl)) != 0) {
+               memcpy(&ks->rxctrl, &rxctrl, sizeof(ks->rxctrl));
+               schedule_work(&ks->rxctrl_work);
+       }
+ 
+-      spin_unlock(&ks->statelock);
++      spin_unlock_bh(&ks->statelock);
+ }
+ 
+ static int ks8851_set_mac_address(struct net_device *dev, void *addr)
+@@ -1101,7 +1102,6 @@ int ks8851_probe_common(struct net_device *netdev, 
struct device *dev,
+       int ret;
+ 
+       ks->netdev = netdev;
+-      ks->tx_space = 6144;
+ 
+       ks->gpio = devm_gpiod_get_optional(dev, "reset", GPIOD_OUT_HIGH);
+       ret = PTR_ERR_OR_ZERO(ks->gpio);
+diff --git a/drivers/net/ethernet/micrel/ks8851_spi.c 
b/drivers/net/ethernet/micrel/ks8851_spi.c
+index 4dcbff789b19d..e33a5e7beb39e 100644
+--- a/drivers/net/ethernet/micrel/ks8851_spi.c
++++ b/drivers/net/ethernet/micrel/ks8851_spi.c
+@@ -340,10 +340,10 @@ static void ks8851_tx_work(struct work_struct *work)
+ 
+       tx_space = ks8851_rdreg16_spi(ks, KS_TXMIR);
+ 
+-      spin_lock(&ks->statelock);
++      spin_lock_bh(&ks->statelock);
+       ks->queued_len -= dequeued_len;
+       ks->tx_space = tx_space;
+-      spin_unlock(&ks->statelock);
++      spin_unlock_bh(&ks->statelock);
+ 
+       ks8851_unlock_spi(ks, &flags);
+ }
+diff --git a/drivers/net/phy/microchip_t1.c b/drivers/net/phy/microchip_t1.c
+index 8569a545e0a3f..9517243e3051e 100644
+--- a/drivers/net/phy/microchip_t1.c
++++ b/drivers/net/phy/microchip_t1.c
+@@ -711,7 +711,7 @@ static int lan87xx_cable_test_report(struct phy_device 
*phydev)
+       ethnl_cable_test_result(phydev, ETHTOOL_A_CABLE_PAIR_A,
+                               lan87xx_cable_test_report_trans(detect));
+ 
+-      return 0;
++      return phy_init_hw(phydev);
+ }
+ 
+ static int lan87xx_cable_test_get_status(struct phy_device *phydev,
+diff --git a/drivers/net/ppp/ppp_generic.c b/drivers/net/ppp/ppp_generic.c
+index 1d71f5276241c..5a6fa566e722f 100644
+--- a/drivers/net/ppp/ppp_generic.c
++++ b/drivers/net/ppp/ppp_generic.c
+@@ -70,6 +70,7 @@
+ #define MPHDRLEN_SSN  4       /* ditto with short sequence numbers */
+ 
+ #define PPP_PROTO_LEN 2
++#define PPP_LCP_HDRLEN        4
+ 
+ /*
+  * An instance of /dev/ppp can be associated with either a ppp
+@@ -491,6 +492,15 @@ static ssize_t ppp_read(struct file *file, char __user 
*buf,
+       return ret;
+ }
+ 
++static bool ppp_check_packet(struct sk_buff *skb, size_t count)
++{
++      /* LCP packets must include LCP header which 4 bytes long:
++       * 1-byte code, 1-byte identifier, and 2-byte length.
++       */
++      return get_unaligned_be16(skb->data) != PPP_LCP ||
++              count >= PPP_PROTO_LEN + PPP_LCP_HDRLEN;
++}
++
+ static ssize_t ppp_write(struct file *file, const char __user *buf,
+                        size_t count, loff_t *ppos)
+ {
+@@ -513,6 +523,11 @@ static ssize_t ppp_write(struct file *file, const char 
__user *buf,
+               kfree_skb(skb);
+               goto out;
+       }
++      ret = -EINVAL;
++      if (unlikely(!ppp_check_packet(skb, count))) {
++              kfree_skb(skb);
++              goto out;
++      }
+ 
+       switch (pf->kind) {
+       case INTERFACE:
+diff --git a/drivers/net/wireguard/allowedips.c 
b/drivers/net/wireguard/allowedips.c
+index 0ba714ca5185c..4b8528206cc8a 100644
+--- a/drivers/net/wireguard/allowedips.c
++++ b/drivers/net/wireguard/allowedips.c
+@@ -15,8 +15,8 @@ static void swap_endian(u8 *dst, const u8 *src, u8 bits)
+       if (bits == 32) {
+               *(u32 *)dst = be32_to_cpu(*(const __be32 *)src);
+       } else if (bits == 128) {
+-              ((u64 *)dst)[0] = be64_to_cpu(((const __be64 *)src)[0]);
+-              ((u64 *)dst)[1] = be64_to_cpu(((const __be64 *)src)[1]);
++              ((u64 *)dst)[0] = get_unaligned_be64(src);
++              ((u64 *)dst)[1] = get_unaligned_be64(src + 8);
+       }
+ }
+ 
+diff --git a/drivers/net/wireguard/queueing.h 
b/drivers/net/wireguard/queueing.h
+index 1d4f9196bfe17..3ce70db9dd3fe 100644
+--- a/drivers/net/wireguard/queueing.h
++++ b/drivers/net/wireguard/queueing.h
+@@ -124,10 +124,10 @@ static inline int wg_cpumask_choose_online(int 
*stored_cpu, unsigned int id)
+  */
+ static inline int wg_cpumask_next_online(int *last_cpu)
+ {
+-      int cpu = cpumask_next(*last_cpu, cpu_online_mask);
++      int cpu = cpumask_next(READ_ONCE(*last_cpu), cpu_online_mask);
+       if (cpu >= nr_cpu_ids)
+               cpu = cpumask_first(cpu_online_mask);
+-      *last_cpu = cpu;
++      WRITE_ONCE(*last_cpu, cpu);
+       return cpu;
+ }
+ 
+diff --git a/drivers/net/wireguard/send.c b/drivers/net/wireguard/send.c
+index 0d48e0f4a1ba3..26e09c30d596c 100644
+--- a/drivers/net/wireguard/send.c
++++ b/drivers/net/wireguard/send.c
+@@ -222,7 +222,7 @@ void wg_packet_send_keepalive(struct wg_peer *peer)
+ {
+       struct sk_buff *skb;
+ 
+-      if (skb_queue_empty(&peer->staged_packet_queue)) {
++      if (skb_queue_empty_lockless(&peer->staged_packet_queue)) {
+               skb = alloc_skb(DATA_PACKET_HEAD_ROOM + MESSAGE_MINIMUM_LENGTH,
+                               GFP_ATOMIC);
+               if (unlikely(!skb))
+diff --git a/drivers/nvmem/core.c b/drivers/nvmem/core.c
+index 34ee9d36ee7ba..f060583941027 100644
+--- a/drivers/nvmem/core.c
++++ b/drivers/nvmem/core.c
+@@ -367,10 +367,9 @@ static int nvmem_sysfs_setup_compat(struct nvmem_device 
*nvmem,
+       if (!config->base_dev)
+               return -EINVAL;
+ 
+-      if (config->type == NVMEM_TYPE_FRAM)
+-              bin_attr_nvmem_eeprom_compat.attr.name = "fram";
+-
+       nvmem->eeprom = bin_attr_nvmem_eeprom_compat;
++      if (config->type == NVMEM_TYPE_FRAM)
++              nvmem->eeprom.attr.name = "fram";
+       nvmem->eeprom.attr.mode = nvmem_bin_attr_get_umode(nvmem);
+       nvmem->eeprom.size = nvmem->size;
+ #ifdef CONFIG_DEBUG_LOCK_ALLOC
+diff --git a/drivers/nvmem/meson-efuse.c b/drivers/nvmem/meson-efuse.c
+index ba2714bef8d0e..cf1b249e67ca2 100644
+--- a/drivers/nvmem/meson-efuse.c
++++ b/drivers/nvmem/meson-efuse.c
+@@ -18,18 +18,24 @@ static int meson_efuse_read(void *context, unsigned int 
offset,
+                           void *val, size_t bytes)
+ {
+       struct meson_sm_firmware *fw = context;
++      int ret;
+ 
+-      return meson_sm_call_read(fw, (u8 *)val, bytes, SM_EFUSE_READ, offset,
+-                                bytes, 0, 0, 0);
++      ret = meson_sm_call_read(fw, (u8 *)val, bytes, SM_EFUSE_READ, offset,
++                               bytes, 0, 0, 0);
++
++      return ret < 0 ? ret : 0;
+ }
+ 
+ static int meson_efuse_write(void *context, unsigned int offset,
+                            void *val, size_t bytes)
+ {
+       struct meson_sm_firmware *fw = context;
++      int ret;
++
++      ret = meson_sm_call_write(fw, (u8 *)val, bytes, SM_EFUSE_WRITE, offset,
++                                bytes, 0, 0, 0);
+ 
+-      return meson_sm_call_write(fw, (u8 *)val, bytes, SM_EFUSE_WRITE, offset,
+-                                 bytes, 0, 0, 0);
++      return ret < 0 ? ret : 0;
+ }
+ 
+ static const struct of_device_id meson_efuse_match[] = {
+diff --git a/drivers/nvmem/rmem.c b/drivers/nvmem/rmem.c
+index 752d0bf4445ee..7f907c5a445e7 100644
+--- a/drivers/nvmem/rmem.c
++++ b/drivers/nvmem/rmem.c
+@@ -46,7 +46,10 @@ static int rmem_read(void *context, unsigned int offset,
+ 
+       memunmap(addr);
+ 
+-      return count;
++      if (count < 0)
++              return count;
++
++      return count == bytes ? 0 : -EIO;
+ }
+ 
+ static int rmem_probe(struct platform_device *pdev)
+diff --git a/drivers/platform/x86/toshiba_acpi.c 
b/drivers/platform/x86/toshiba_acpi.c
+index 1a8cb8eb22829..033e28aaeea63 100644
+--- a/drivers/platform/x86/toshiba_acpi.c
++++ b/drivers/platform/x86/toshiba_acpi.c
+@@ -3305,6 +3305,7 @@ static const struct dmi_system_id toshiba_dmi_quirks[] 
__initconst = {
+               },
+        .driver_data = (void *)(QUIRK_TURN_ON_PANEL_ON_RESUME | 
QUIRK_HCI_HOTKEY_QUICKSTART),
+       },
++      { }
+ };
+ 
+ static int toshiba_acpi_add(struct acpi_device *acpi_dev)
+diff --git a/drivers/usb/core/config.c b/drivers/usb/core/config.c
+index d396ac8b9cedd..15613b183fbd0 100644
+--- a/drivers/usb/core/config.c
++++ b/drivers/usb/core/config.c
+@@ -291,6 +291,20 @@ static int usb_parse_endpoint(struct device *ddev, int 
cfgno,
+       if (ifp->desc.bNumEndpoints >= num_ep)
+               goto skip_to_next_endpoint_or_interface_descriptor;
+ 
++      /* Save a copy of the descriptor and use it instead of the original */
++      endpoint = &ifp->endpoint[ifp->desc.bNumEndpoints];
++      memcpy(&endpoint->desc, d, n);
++      d = &endpoint->desc;
++
++      /* Clear the reserved bits in bEndpointAddress */
++      i = d->bEndpointAddress &
++                      (USB_ENDPOINT_DIR_MASK | USB_ENDPOINT_NUMBER_MASK);
++      if (i != d->bEndpointAddress) {
++              dev_notice(ddev, "config %d interface %d altsetting %d has an 
endpoint descriptor with address 0x%X, changing to 0x%X\n",
++                  cfgno, inum, asnum, d->bEndpointAddress, i);
++              endpoint->desc.bEndpointAddress = i;
++      }
++
+       /* Check for duplicate endpoint addresses */
+       if (config_endpoint_is_duplicate(config, inum, asnum, d)) {
+               dev_notice(ddev, "config %d interface %d altsetting %d has a 
duplicate endpoint with address 0x%X, skipping\n",
+@@ -308,10 +322,8 @@ static int usb_parse_endpoint(struct device *ddev, int 
cfgno,
+               }
+       }
+ 
+-      endpoint = &ifp->endpoint[ifp->desc.bNumEndpoints];
++      /* Accept this endpoint */
+       ++ifp->desc.bNumEndpoints;
+-
+-      memcpy(&endpoint->desc, d, n);
+       INIT_LIST_HEAD(&endpoint->urb_list);
+ 
+       /*
+diff --git a/drivers/usb/core/quirks.c b/drivers/usb/core/quirks.c
+index b4783574b8e66..13171454f9591 100644
+--- a/drivers/usb/core/quirks.c
++++ b/drivers/usb/core/quirks.c
+@@ -506,6 +506,9 @@ static const struct usb_device_id usb_quirk_list[] = {
+       { USB_DEVICE(0x1b1c, 0x1b38), .driver_info = USB_QUIRK_DELAY_INIT |
+         USB_QUIRK_DELAY_CTRL_MSG },
+ 
++      /* START BP-850k Printer */
++      { USB_DEVICE(0x1bc3, 0x0003), .driver_info = USB_QUIRK_NO_SET_INTF },
++
+       /* MIDI keyboard WORLDE MINI */
+       { USB_DEVICE(0x1c75, 0x0204), .driver_info =
+                       USB_QUIRK_CONFIG_INTF_STRINGS },
+diff --git a/drivers/usb/gadget/configfs.c b/drivers/usb/gadget/configfs.c
+index b94aec6227c51..5c1c7f36e5442 100644
+--- a/drivers/usb/gadget/configfs.c
++++ b/drivers/usb/gadget/configfs.c
+@@ -105,9 +105,12 @@ static int usb_string_copy(const char *s, char **s_copy)
+       int ret;
+       char *str;
+       char *copy = *s_copy;
++
+       ret = strlen(s);
+       if (ret > USB_MAX_STRING_LEN)
+               return -EOVERFLOW;
++      if (ret < 1)
++              return -EINVAL;
+ 
+       if (copy) {
+               str = copy;
+diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
+index 27e01671d3865..505f45429c125 100644
+--- a/drivers/usb/host/xhci.c
++++ b/drivers/usb/host/xhci.c
+@@ -1247,10 +1247,20 @@ int xhci_resume(struct xhci_hcd *xhci, bool hibernated)
+                       xhci_dbg(xhci, "Start the secondary HCD\n");
+                       retval = xhci_run(xhci->shared_hcd);
+               }
+-
++              if (retval)
++                      return retval;
++              /*
++               * Resume roothubs unconditionally as PORTSC change bits are not
++               * immediately visible after xHC reset
++               */
+               hcd->state = HC_STATE_SUSPENDED;
+-              if (xhci->shared_hcd)
++
++              if (xhci->shared_hcd) {
+                       xhci->shared_hcd->state = HC_STATE_SUSPENDED;
++                      usb_hcd_resume_root_hub(xhci->shared_hcd);
++              }
++              usb_hcd_resume_root_hub(hcd);
++
+               goto done;
+       }
+ 
+@@ -1274,7 +1284,6 @@ int xhci_resume(struct xhci_hcd *xhci, bool hibernated)
+ 
+       xhci_dbc_resume(xhci);
+ 
+- done:
+       if (retval == 0) {
+               /*
+                * Resume roothubs only if there are pending events.
+@@ -1293,6 +1302,7 @@ int xhci_resume(struct xhci_hcd *xhci, bool hibernated)
+                       usb_hcd_resume_root_hub(hcd);
+               }
+       }
++done:
+       /*
+        * If system is subject to the Quirk, Compliance Mode Timer needs to
+        * be re-initialized Always after a system resume. Ports are subject
+diff --git a/drivers/usb/serial/mos7840.c b/drivers/usb/serial/mos7840.c
+index 6b12bb4648b83..26f287180f8ab 100644
+--- a/drivers/usb/serial/mos7840.c
++++ b/drivers/usb/serial/mos7840.c
+@@ -1736,6 +1736,49 @@ static void mos7840_port_remove(struct usb_serial_port 
*port)
+       kfree(mos7840_port);
+ }
+ 
++static int mos7840_suspend(struct usb_serial *serial, pm_message_t message)
++{
++      struct moschip_port *mos7840_port;
++      struct usb_serial_port *port;
++      int i;
++
++      for (i = 0; i < serial->num_ports; ++i) {
++              port = serial->port[i];
++              if (!tty_port_initialized(&port->port))
++                      continue;
++
++              mos7840_port = usb_get_serial_port_data(port);
++
++              usb_kill_urb(mos7840_port->read_urb);
++              mos7840_port->read_urb_busy = false;
++      }
++
++      return 0;
++}
++
++static int mos7840_resume(struct usb_serial *serial)
++{
++      struct moschip_port *mos7840_port;
++      struct usb_serial_port *port;
++      int res;
++      int i;
++
++      for (i = 0; i < serial->num_ports; ++i) {
++              port = serial->port[i];
++              if (!tty_port_initialized(&port->port))
++                      continue;
++
++              mos7840_port = usb_get_serial_port_data(port);
++
++              mos7840_port->read_urb_busy = true;
++              res = usb_submit_urb(mos7840_port->read_urb, GFP_NOIO);
++              if (res)
++                      mos7840_port->read_urb_busy = false;
++      }
++
++      return 0;
++}
++
+ static struct usb_serial_driver moschip7840_4port_device = {
+       .driver = {
+                  .owner = THIS_MODULE,
+@@ -1763,6 +1806,8 @@ static struct usb_serial_driver moschip7840_4port_device 
= {
+       .port_probe = mos7840_port_probe,
+       .port_remove = mos7840_port_remove,
+       .read_bulk_callback = mos7840_bulk_in_callback,
++      .suspend = mos7840_suspend,
++      .resume = mos7840_resume,
+ };
+ 
+ static struct usb_serial_driver * const serial_drivers[] = {
+diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
+index b5ee8518fcc78..cb0eb7fd25426 100644
+--- a/drivers/usb/serial/option.c
++++ b/drivers/usb/serial/option.c
+@@ -1425,6 +1425,10 @@ static const struct usb_device_id option_ids[] = {
+         .driver_info = NCTRL(0) | RSVD(1) },
+       { USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x1901, 0xff),    /* 
Telit LN940 (MBIM) */
+         .driver_info = NCTRL(0) },
++      { USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x3000, 0xff),    /* 
Telit FN912 */
++        .driver_info = RSVD(0) | NCTRL(3) },
++      { USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x3001, 0xff),    /* 
Telit FN912 */
++        .driver_info = RSVD(0) | NCTRL(2) | RSVD(3) | RSVD(4) },
+       { USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x7010, 0xff),    /* 
Telit LE910-S1 (RNDIS) */
+         .driver_info = NCTRL(2) },
+       { USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x7011, 0xff),    /* 
Telit LE910-S1 (ECM) */
+@@ -1433,6 +1437,8 @@ static const struct usb_device_id option_ids[] = {
+         .driver_info = NCTRL(2) },
+       { USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x701b, 0xff),    /* 
Telit LE910R1 (ECM) */
+         .driver_info = NCTRL(2) },
++      { USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x9000, 0xff),    /* 
Telit generic core-dump device */
++        .driver_info = NCTRL(0) },
+       { USB_DEVICE(TELIT_VENDOR_ID, 0x9010),                          /* 
Telit SBL FN980 flashing device */
+         .driver_info = NCTRL(0) | ZLP },
+       { USB_DEVICE(TELIT_VENDOR_ID, 0x9200),                          /* 
Telit LE910S1 flashing device */
+@@ -2224,6 +2230,10 @@ static const struct usb_device_id option_ids[] = {
+       { USB_DEVICE_AND_INTERFACE_INFO(MEDIATEK_VENDOR_ID, 
MEDIATEK_PRODUCT_7106_2COM, 0x02, 0x02, 0x01) },
+       { USB_DEVICE_AND_INTERFACE_INFO(MEDIATEK_VENDOR_ID, 
MEDIATEK_PRODUCT_DC_4COM2, 0xff, 0x02, 0x01) },
+       { USB_DEVICE_AND_INTERFACE_INFO(MEDIATEK_VENDOR_ID, 
MEDIATEK_PRODUCT_DC_4COM2, 0xff, 0x00, 0x00) },
++      { USB_DEVICE_AND_INTERFACE_INFO(MEDIATEK_VENDOR_ID, 0x7126, 0xff, 0x00, 
0x00),
++        .driver_info = NCTRL(2) },
++      { USB_DEVICE_AND_INTERFACE_INFO(MEDIATEK_VENDOR_ID, 0x7127, 0xff, 0x00, 
0x00),
++        .driver_info = NCTRL(2) | NCTRL(3) | NCTRL(4) },
+       { USB_DEVICE(CELLIENT_VENDOR_ID, CELLIENT_PRODUCT_MEN200) },
+       { USB_DEVICE(CELLIENT_VENDOR_ID, CELLIENT_PRODUCT_MPL200),
+         .driver_info = RSVD(1) | RSVD(4) },
+@@ -2284,6 +2294,8 @@ static const struct usb_device_id option_ids[] = {
+         .driver_info = RSVD(3) },
+       { USB_DEVICE_INTERFACE_CLASS(0x0489, 0xe0f0, 0xff),                     
/* Foxconn T99W373 MBIM */
+         .driver_info = RSVD(3) },
++      { USB_DEVICE_INTERFACE_CLASS(0x0489, 0xe145, 0xff),                     
/* Foxconn T99W651 RNDIS */
++        .driver_info = RSVD(5) | RSVD(6) },
+       { USB_DEVICE(0x1508, 0x1001),                                           
/* Fibocom NL668 (IOT version) */
+         .driver_info = RSVD(4) | RSVD(5) | RSVD(6) },
+       { USB_DEVICE(0x1782, 0x4d10) },                                         
/* Fibocom L610 (AT mode) */
+@@ -2321,6 +2333,32 @@ static const struct usb_device_id option_ids[] = {
+         .driver_info = RSVD(4) },
+       { USB_DEVICE_INTERFACE_CLASS(0x33f8, 0x0115, 0xff),                     
/* Rolling RW135-GL (laptop MBIM) */
+         .driver_info = RSVD(5) },
++      { USB_DEVICE_INTERFACE_CLASS(0x33f8, 0x0802, 0xff),                     
/* Rolling RW350-GL (laptop MBIM) */
++        .driver_info = RSVD(5) },
++      { USB_DEVICE_AND_INTERFACE_INFO(0x3731, 0x0100, 0xff, 0xff, 0x30) },    
/* NetPrisma LCUK54-WWD for Global */
++      { USB_DEVICE_AND_INTERFACE_INFO(0x3731, 0x0100, 0xff, 0x00, 0x40) },
++      { USB_DEVICE_AND_INTERFACE_INFO(0x3731, 0x0100, 0xff, 0xff, 0x40) },
++      { USB_DEVICE_AND_INTERFACE_INFO(0x3731, 0x0101, 0xff, 0xff, 0x30) },    
/* NetPrisma LCUK54-WRD for Global SKU */
++      { USB_DEVICE_AND_INTERFACE_INFO(0x3731, 0x0101, 0xff, 0x00, 0x40) },
++      { USB_DEVICE_AND_INTERFACE_INFO(0x3731, 0x0101, 0xff, 0xff, 0x40) },
++      { USB_DEVICE_AND_INTERFACE_INFO(0x3731, 0x0106, 0xff, 0xff, 0x30) },    
/* NetPrisma LCUK54-WRD for China SKU */
++      { USB_DEVICE_AND_INTERFACE_INFO(0x3731, 0x0106, 0xff, 0x00, 0x40) },
++      { USB_DEVICE_AND_INTERFACE_INFO(0x3731, 0x0106, 0xff, 0xff, 0x40) },
++      { USB_DEVICE_AND_INTERFACE_INFO(0x3731, 0x0111, 0xff, 0xff, 0x30) },    
/* NetPrisma LCUK54-WWD for SA */
++      { USB_DEVICE_AND_INTERFACE_INFO(0x3731, 0x0111, 0xff, 0x00, 0x40) },
++      { USB_DEVICE_AND_INTERFACE_INFO(0x3731, 0x0111, 0xff, 0xff, 0x40) },
++      { USB_DEVICE_AND_INTERFACE_INFO(0x3731, 0x0112, 0xff, 0xff, 0x30) },    
/* NetPrisma LCUK54-WWD for EU */
++      { USB_DEVICE_AND_INTERFACE_INFO(0x3731, 0x0112, 0xff, 0x00, 0x40) },
++      { USB_DEVICE_AND_INTERFACE_INFO(0x3731, 0x0112, 0xff, 0xff, 0x40) },
++      { USB_DEVICE_AND_INTERFACE_INFO(0x3731, 0x0113, 0xff, 0xff, 0x30) },    
/* NetPrisma LCUK54-WWD for NA */
++      { USB_DEVICE_AND_INTERFACE_INFO(0x3731, 0x0113, 0xff, 0x00, 0x40) },
++      { USB_DEVICE_AND_INTERFACE_INFO(0x3731, 0x0113, 0xff, 0xff, 0x40) },
++      { USB_DEVICE_AND_INTERFACE_INFO(0x3731, 0x0115, 0xff, 0xff, 0x30) },    
/* NetPrisma LCUK54-WWD for China EDU */
++      { USB_DEVICE_AND_INTERFACE_INFO(0x3731, 0x0115, 0xff, 0x00, 0x40) },
++      { USB_DEVICE_AND_INTERFACE_INFO(0x3731, 0x0115, 0xff, 0xff, 0x40) },
++      { USB_DEVICE_AND_INTERFACE_INFO(0x3731, 0x0116, 0xff, 0xff, 0x30) },    
/* NetPrisma LCUK54-WWD for Golbal EDU */
++      { USB_DEVICE_AND_INTERFACE_INFO(0x3731, 0x0116, 0xff, 0x00, 0x40) },
++      { USB_DEVICE_AND_INTERFACE_INFO(0x3731, 0x0116, 0xff, 0xff, 0x40) },
+       { USB_DEVICE_AND_INTERFACE_INFO(OPPO_VENDOR_ID, OPPO_PRODUCT_R11, 0xff, 
0xff, 0x30) },
+       { USB_DEVICE_AND_INTERFACE_INFO(SIERRA_VENDOR_ID, 
SIERRA_PRODUCT_EM9191, 0xff, 0xff, 0x30) },
+       { USB_DEVICE_AND_INTERFACE_INFO(SIERRA_VENDOR_ID, 
SIERRA_PRODUCT_EM9191, 0xff, 0xff, 0x40) },
+diff --git a/fs/cachefiles/daemon.c b/fs/cachefiles/daemon.c
+index b9945e4f697be..89b11336a8369 100644
+--- a/fs/cachefiles/daemon.c
++++ b/fs/cachefiles/daemon.c
+@@ -357,14 +357,24 @@ static __poll_t cachefiles_daemon_poll(struct file *file,
+                                          struct poll_table_struct *poll)
+ {
+       struct cachefiles_cache *cache = file->private_data;
++      XA_STATE(xas, &cache->reqs, 0);
++      struct cachefiles_req *req;
+       __poll_t mask;
+ 
+       poll_wait(file, &cache->daemon_pollwq, poll);
+       mask = 0;
+ 
+       if (cachefiles_in_ondemand_mode(cache)) {
+-              if (!xa_empty(&cache->reqs))
+-                      mask |= EPOLLIN;
++              if (!xa_empty(&cache->reqs)) {
++                      xas_lock(&xas);
++                      xas_for_each_marked(&xas, req, ULONG_MAX, 
CACHEFILES_REQ_NEW) {
++                              if 
(!cachefiles_ondemand_is_reopening_read(req)) {
++                                      mask |= EPOLLIN;
++                                      break;
++                              }
++                      }
++                      xas_unlock(&xas);
++              }
+       } else {
+               if (test_bit(CACHEFILES_STATE_CHANGED, &cache->flags))
+                       mask |= EPOLLIN;
+diff --git a/fs/cachefiles/internal.h b/fs/cachefiles/internal.h
+index 3eea52462fc87..111ad6ecd4baf 100644
+--- a/fs/cachefiles/internal.h
++++ b/fs/cachefiles/internal.h
+@@ -48,6 +48,7 @@ enum cachefiles_object_state {
+       CACHEFILES_ONDEMAND_OBJSTATE_CLOSE, /* Anonymous fd closed by daemon or 
initial state */
+       CACHEFILES_ONDEMAND_OBJSTATE_OPEN, /* Anonymous fd associated with 
object is available */
+       CACHEFILES_ONDEMAND_OBJSTATE_REOPENING, /* Object that was closed and 
is being reopened. */
++      CACHEFILES_ONDEMAND_OBJSTATE_DROPPING, /* Object is being dropped. */
+ };
+ 
+ struct cachefiles_ondemand_info {
+@@ -128,6 +129,7 @@ struct cachefiles_cache {
+       unsigned long                   req_id_next;
+       struct xarray                   ondemand_ids;   /* xarray for 
ondemand_id allocation */
+       u32                             ondemand_id_next;
++      u32                             msg_id_next;
+ };
+ 
+ static inline bool cachefiles_in_ondemand_mode(struct cachefiles_cache *cache)
+@@ -335,6 +337,14 @@ cachefiles_ondemand_set_object_##_state(struct 
cachefiles_object *object) \
+ CACHEFILES_OBJECT_STATE_FUNCS(open, OPEN);
+ CACHEFILES_OBJECT_STATE_FUNCS(close, CLOSE);
+ CACHEFILES_OBJECT_STATE_FUNCS(reopening, REOPENING);
++CACHEFILES_OBJECT_STATE_FUNCS(dropping, DROPPING);
++
++static inline bool cachefiles_ondemand_is_reopening_read(struct 
cachefiles_req *req)
++{
++      return cachefiles_ondemand_object_is_reopening(req->object) &&
++                      req->msg.opcode == CACHEFILES_OP_READ;
++}
++
+ #else
+ static inline ssize_t cachefiles_ondemand_daemon_read(struct cachefiles_cache 
*cache,
+                                       char __user *_buffer, size_t buflen)
+@@ -365,6 +375,11 @@ static inline int 
cachefiles_ondemand_init_obj_info(struct cachefiles_object *ob
+ static inline void cachefiles_ondemand_deinit_obj_info(struct 
cachefiles_object *obj)
+ {
+ }
++
++static inline bool cachefiles_ondemand_is_reopening_read(struct 
cachefiles_req *req)
++{
++      return false;
++}
+ #endif
+ 
+ /*
+diff --git a/fs/cachefiles/ondemand.c b/fs/cachefiles/ondemand.c
+index 4b39f0422e590..51173ab6dbd84 100644
+--- a/fs/cachefiles/ondemand.c
++++ b/fs/cachefiles/ondemand.c
+@@ -494,7 +494,8 @@ static int cachefiles_ondemand_send_req(struct 
cachefiles_object *object,
+                */
+               xas_lock(&xas);
+ 
+-              if (test_bit(CACHEFILES_DEAD, &cache->flags)) {
++              if (test_bit(CACHEFILES_DEAD, &cache->flags) ||
++                  cachefiles_ondemand_object_is_dropping(object)) {
+                       xas_unlock(&xas);
+                       ret = -EIO;
+                       goto out;
+@@ -504,20 +505,32 @@ static int cachefiles_ondemand_send_req(struct 
cachefiles_object *object,
+               smp_mb();
+ 
+               if (opcode == CACHEFILES_OP_CLOSE &&
+-                      !cachefiles_ondemand_object_is_open(object)) {
++                  !cachefiles_ondemand_object_is_open(object)) {
+                       WARN_ON_ONCE(object->ondemand->ondemand_id == 0);
+                       xas_unlock(&xas);
+                       ret = -EIO;
+                       goto out;
+               }
+ 
+-              xas.xa_index = 0;
++              /*
++               * Cyclically find a free xas to avoid msg_id reuse that would
++               * cause the daemon to successfully copen a stale msg_id.
++               */
++              xas.xa_index = cache->msg_id_next;
+               xas_find_marked(&xas, UINT_MAX, XA_FREE_MARK);
++              if (xas.xa_node == XAS_RESTART) {
++                      xas.xa_index = 0;
++                      xas_find_marked(&xas, cache->msg_id_next - 1, 
XA_FREE_MARK);
++              }
+               if (xas.xa_node == XAS_RESTART)
+                       xas_set_err(&xas, -EBUSY);
++
+               xas_store(&xas, req);
+-              xas_clear_mark(&xas, XA_FREE_MARK);
+-              xas_set_mark(&xas, CACHEFILES_REQ_NEW);
++              if (xas_valid(&xas)) {
++                      cache->msg_id_next = xas.xa_index + 1;
++                      xas_clear_mark(&xas, XA_FREE_MARK);
++                      xas_set_mark(&xas, CACHEFILES_REQ_NEW);
++              }
+               xas_unlock(&xas);
+       } while (xas_nomem(&xas, GFP_KERNEL));
+ 
+@@ -535,7 +548,8 @@ static int cachefiles_ondemand_send_req(struct 
cachefiles_object *object,
+        * If error occurs after creating the anonymous fd,
+        * cachefiles_ondemand_fd_release() will set object to close.
+        */
+-      if (opcode == CACHEFILES_OP_OPEN)
++      if (opcode == CACHEFILES_OP_OPEN &&
++          !cachefiles_ondemand_object_is_dropping(object))
+               cachefiles_ondemand_set_object_close(object);
+       kfree(req);
+       return ret;
+@@ -634,8 +648,34 @@ int cachefiles_ondemand_init_object(struct 
cachefiles_object *object)
+ 
+ void cachefiles_ondemand_clean_object(struct cachefiles_object *object)
+ {
++      unsigned long index;
++      struct cachefiles_req *req;
++      struct cachefiles_cache *cache;
++
++      if (!object->ondemand)
++              return;
++
+       cachefiles_ondemand_send_req(object, CACHEFILES_OP_CLOSE, 0,
+                       cachefiles_ondemand_init_close_req, NULL);
++
++      if (!object->ondemand->ondemand_id)
++              return;
++
++      /* Cancel all requests for the object that is being dropped. */
++      cache = object->volume->cache;
++      xa_lock(&cache->reqs);
++      cachefiles_ondemand_set_object_dropping(object);
++      xa_for_each(&cache->reqs, index, req) {
++              if (req->object == object) {
++                      req->error = -EIO;
++                      complete(&req->done);
++                      __xa_erase(&cache->reqs, index);
++              }
++      }
++      xa_unlock(&cache->reqs);
++
++      /* Wait for ondemand_object_worker() to finish to avoid UAF. */
++      cancel_work_sync(&object->ondemand->ondemand_work);
+ }
+ 
+ int cachefiles_ondemand_init_obj_info(struct cachefiles_object *object,
+diff --git a/fs/cachefiles/xattr.c b/fs/cachefiles/xattr.c
+index 00b087c14995a..0ecfc9065047c 100644
+--- a/fs/cachefiles/xattr.c
++++ b/fs/cachefiles/xattr.c
+@@ -110,9 +110,11 @@ int cachefiles_check_auxdata(struct cachefiles_object 
*object, struct file *file
+       if (xlen == 0)
+               xlen = vfs_getxattr(&init_user_ns, dentry, 
cachefiles_xattr_cache, buf, tlen);
+       if (xlen != tlen) {
+-              if (xlen < 0)
++              if (xlen < 0) {
++                      ret = xlen;
+                       trace_cachefiles_vfs_error(object, file_inode(file), 
xlen,
+                                                  
cachefiles_trace_getxattr_error);
++              }
+               if (xlen == -EIO)
+                       cachefiles_io_error_obj(
+                               object,
+@@ -252,6 +254,7 @@ int cachefiles_check_volume_xattr(struct cachefiles_volume 
*volume)
+               xlen = vfs_getxattr(&init_user_ns, dentry, 
cachefiles_xattr_cache, buf, len);
+       if (xlen != len) {
+               if (xlen < 0) {
++                      ret = xlen;
+                       trace_cachefiles_vfs_error(NULL, d_inode(dentry), xlen,
+                                                  
cachefiles_trace_getxattr_error);
+                       if (xlen == -EIO)
+diff --git a/fs/dcache.c b/fs/dcache.c
+index b09bc88dbbec7..04f32dc8d1ad8 100644
+--- a/fs/dcache.c
++++ b/fs/dcache.c
+@@ -356,7 +356,11 @@ static inline void __d_clear_type_and_inode(struct dentry 
*dentry)
+       flags &= ~(DCACHE_ENTRY_TYPE | DCACHE_FALLTHRU);
+       WRITE_ONCE(dentry->d_flags, flags);
+       dentry->d_inode = NULL;
+-      if (dentry->d_flags & DCACHE_LRU_LIST)
++      /*
++       * The negative counter only tracks dentries on the LRU. Don't inc if
++       * d_lru is on another list.
++       */
++      if ((flags & (DCACHE_LRU_LIST|DCACHE_SHRINK_LIST)) == DCACHE_LRU_LIST)
+               this_cpu_inc(nr_dentry_negative);
+ }
+ 
+@@ -2001,9 +2005,11 @@ static void __d_instantiate(struct dentry *dentry, 
struct inode *inode)
+ 
+       spin_lock(&dentry->d_lock);
+       /*
+-       * Decrement negative dentry count if it was in the LRU list.
++       * The negative counter only tracks dentries on the LRU. Don't dec if
++       * d_lru is on another list.
+        */
+-      if (dentry->d_flags & DCACHE_LRU_LIST)
++      if ((dentry->d_flags &
++           (DCACHE_LRU_LIST|DCACHE_SHRINK_LIST)) == DCACHE_LRU_LIST)
+               this_cpu_dec(nr_dentry_negative);
+       hlist_add_head(&dentry->d_u.d_alias, &inode->i_dentry);
+       raw_write_seqcount_begin(&dentry->d_seq);
+diff --git a/fs/locks.c b/fs/locks.c
+index 7d0918b8fe5d6..c23bcfe9b0fdd 100644
+--- a/fs/locks.c
++++ b/fs/locks.c
+@@ -1298,9 +1298,9 @@ static int posix_lock_inode(struct inode *inode, struct 
file_lock *request,
+               locks_wake_up_blocks(left);
+       }
+  out:
++      trace_posix_lock_inode(inode, request, error);
+       spin_unlock(&ctx->flc_lock);
+       percpu_up_read(&file_rwsem);
+-      trace_posix_lock_inode(inode, request, error);
+       /*
+        * Free any unused locks.
+        */
+diff --git a/fs/nilfs2/dir.c b/fs/nilfs2/dir.c
+index 4bba1970ad333..36438834a0c73 100644
+--- a/fs/nilfs2/dir.c
++++ b/fs/nilfs2/dir.c
+@@ -396,11 +396,39 @@ nilfs_find_entry(struct inode *dir, const struct qstr 
*qstr,
+ 
+ struct nilfs_dir_entry *nilfs_dotdot(struct inode *dir, struct page **p)
+ {
+-      struct nilfs_dir_entry *de = nilfs_get_page(dir, 0, p);
++      struct page *page;
++      struct nilfs_dir_entry *de, *next_de;
++      size_t limit;
++      char *msg;
+ 
++      de = nilfs_get_page(dir, 0, &page);
+       if (IS_ERR(de))
+               return NULL;
+-      return nilfs_next_entry(de);
++
++      limit = nilfs_last_byte(dir, 0);  /* is a multiple of chunk size */
++      if (unlikely(!limit || le64_to_cpu(de->inode) != dir->i_ino ||
++                   !nilfs_match(1, ".", de))) {
++              msg = "missing '.'";
++              goto fail;
++      }
++
++      next_de = nilfs_next_entry(de);
++      /*
++       * If "next_de" has not reached the end of the chunk, there is
++       * at least one more record.  Check whether it matches "..".
++       */
++      if (unlikely((char *)next_de == (char *)de + nilfs_chunk_size(dir) ||
++                   !nilfs_match(2, "..", next_de))) {
++              msg = "missing '..'";
++              goto fail;
++      }
++      *p = page;
++      return next_de;
++
++fail:
++      nilfs_error(dir->i_sb, "directory #%lu %s", dir->i_ino, msg);
++      nilfs_put_page(page);
++      return NULL;
+ }
+ 
+ ino_t nilfs_inode_by_name(struct inode *dir, const struct qstr *qstr)
+diff --git a/fs/smb/client/cifsglob.h b/fs/smb/client/cifsglob.h
+index e5a72f9c793ef..1564febd1439f 100644
+--- a/fs/smb/client/cifsglob.h
++++ b/fs/smb/client/cifsglob.h
+@@ -1837,8 +1837,8 @@ require use of the stronger protocol */
+ #define   CIFSSEC_MUST_SEAL   0x40040 /* not supported yet */
+ #define   CIFSSEC_MUST_NTLMSSP        0x80080 /* raw ntlmssp with ntlmv2 */
+ 
+-#define   CIFSSEC_DEF (CIFSSEC_MAY_SIGN | CIFSSEC_MAY_NTLMV2 | 
CIFSSEC_MAY_NTLMSSP)
+-#define   CIFSSEC_MAX (CIFSSEC_MUST_NTLMV2)
++#define   CIFSSEC_DEF (CIFSSEC_MAY_SIGN | CIFSSEC_MAY_NTLMV2 | 
CIFSSEC_MAY_NTLMSSP | CIFSSEC_MAY_SEAL)
++#define   CIFSSEC_MAX (CIFSSEC_MAY_SIGN | CIFSSEC_MUST_KRB5 | 
CIFSSEC_MAY_SEAL)
+ #define   CIFSSEC_AUTH_MASK (CIFSSEC_MAY_NTLMV2 | CIFSSEC_MAY_KRB5 | 
CIFSSEC_MAY_NTLMSSP)
+ /*
+  *****************************************************************
+diff --git a/fs/smb/server/smb2pdu.c b/fs/smb/server/smb2pdu.c
+index 34d88425434ab..6344bc81736c0 100644
+--- a/fs/smb/server/smb2pdu.c
++++ b/fs/smb/server/smb2pdu.c
+@@ -2062,15 +2062,22 @@ int smb2_tree_connect(struct ksmbd_work *work)
+  * @access:           file access flags
+  * @disposition:      file disposition flags
+  * @may_flags:                set with MAY_ flags
++ * @is_dir:           is creating open flags for directory
+  *
+  * Return:      file open flags
+  */
+ static int smb2_create_open_flags(bool file_present, __le32 access,
+                                 __le32 disposition,
+-                                int *may_flags)
++                                int *may_flags,
++                                bool is_dir)
+ {
+       int oflags = O_NONBLOCK | O_LARGEFILE;
+ 
++      if (is_dir) {
++              access &= ~FILE_WRITE_DESIRE_ACCESS_LE;
++              ksmbd_debug(SMB, "Discard write access to a directory\n");
++      }
++
+       if (access & FILE_READ_DESIRED_ACCESS_LE &&
+           access & FILE_WRITE_DESIRE_ACCESS_LE) {
+               oflags |= O_RDWR;
+@@ -2983,7 +2990,9 @@ int smb2_open(struct ksmbd_work *work)
+ 
+       open_flags = smb2_create_open_flags(file_present, daccess,
+                                           req->CreateDisposition,
+-                                          &may_flags);
++                                          &may_flags,
++              req->CreateOptions & FILE_DIRECTORY_FILE_LE ||
++              (file_present && S_ISDIR(d_inode(path.dentry)->i_mode)));
+ 
+       if (!test_tree_conn_flag(tcon, KSMBD_TREE_CONN_FLAG_WRITABLE)) {
+               if (open_flags & (O_CREAT | O_TRUNC)) {
+diff --git a/fs/userfaultfd.c b/fs/userfaultfd.c
+index 154c103eca751..82101a2cf933e 100644
+--- a/fs/userfaultfd.c
++++ b/fs/userfaultfd.c
+@@ -1968,7 +1968,7 @@ static int userfaultfd_api(struct userfaultfd_ctx *ctx,
+               goto out;
+       features = uffdio_api.features;
+       ret = -EINVAL;
+-      if (uffdio_api.api != UFFD_API || (features & ~UFFD_API_FEATURES))
++      if (uffdio_api.api != UFFD_API)
+               goto err_out;
+       ret = -EPERM;
+       if ((features & UFFD_FEATURE_EVENT_FORK) && !capable(CAP_SYS_PTRACE))
+@@ -1985,6 +1985,11 @@ static int userfaultfd_api(struct userfaultfd_ctx *ctx,
+ #ifndef CONFIG_PTE_MARKER_UFFD_WP
+       uffdio_api.features &= ~UFFD_FEATURE_WP_HUGETLBFS_SHMEM;
+ #endif
++
++      ret = -EINVAL;
++      if (features & ~uffdio_api.features)
++              goto err_out;
++
+       uffdio_api.ioctls = UFFD_API_IOCTLS;
+       ret = -EFAULT;
+       if (copy_to_user(buf, &uffdio_api, sizeof(uffdio_api)))
+diff --git a/include/linux/bpf.h b/include/linux/bpf.h
+index 1ca1902af23e9..6b18b8da025f9 100644
+--- a/include/linux/bpf.h
++++ b/include/linux/bpf.h
+@@ -1777,6 +1777,8 @@ struct bpf_prog *bpf_prog_get_curr_or_next(u32 *id);
+ void *bpf_map_kmalloc_node(const struct bpf_map *map, size_t size, gfp_t 
flags,
+                          int node);
+ void *bpf_map_kzalloc(const struct bpf_map *map, size_t size, gfp_t flags);
++void *bpf_map_kvcalloc(struct bpf_map *map, size_t n, size_t size,
++                     gfp_t flags);
+ void __percpu *bpf_map_alloc_percpu(const struct bpf_map *map, size_t size,
+                                   size_t align, gfp_t flags);
+ #else
+@@ -1793,6 +1795,12 @@ bpf_map_kzalloc(const struct bpf_map *map, size_t size, 
gfp_t flags)
+       return kzalloc(size, flags);
+ }
+ 
++static inline void *
++bpf_map_kvcalloc(struct bpf_map *map, size_t n, size_t size, gfp_t flags)
++{
++      return kvcalloc(n, size, flags);
++}
++
+ static inline void __percpu *
+ bpf_map_alloc_percpu(const struct bpf_map *map, size_t size, size_t align,
+                    gfp_t flags)
+diff --git a/include/linux/bpf_local_storage.h 
b/include/linux/bpf_local_storage.h
+index 7ea18d4da84b8..6d37a40cd90e8 100644
+--- a/include/linux/bpf_local_storage.h
++++ b/include/linux/bpf_local_storage.h
+@@ -116,21 +116,22 @@ static struct bpf_local_storage_cache name = {           
        \
+       .idx_lock = __SPIN_LOCK_UNLOCKED(name.idx_lock),        \
+ }
+ 
+-u16 bpf_local_storage_cache_idx_get(struct bpf_local_storage_cache *cache);
+-void bpf_local_storage_cache_idx_free(struct bpf_local_storage_cache *cache,
+-                                    u16 idx);
+-
+ /* Helper functions for bpf_local_storage */
+ int bpf_local_storage_map_alloc_check(union bpf_attr *attr);
+ 
+-struct bpf_local_storage_map *bpf_local_storage_map_alloc(union bpf_attr 
*attr);
++struct bpf_map *
++bpf_local_storage_map_alloc(union bpf_attr *attr,
++                          struct bpf_local_storage_cache *cache);
+ 
+ struct bpf_local_storage_data *
+ bpf_local_storage_lookup(struct bpf_local_storage *local_storage,
+                        struct bpf_local_storage_map *smap,
+                        bool cacheit_lockit);
+ 
+-void bpf_local_storage_map_free(struct bpf_local_storage_map *smap,
++bool bpf_local_storage_unlink_nolock(struct bpf_local_storage *local_storage);
++
++void bpf_local_storage_map_free(struct bpf_map *map,
++                              struct bpf_local_storage_cache *cache,
+                               int __percpu *busy_counter);
+ 
+ int bpf_local_storage_map_check_btf(const struct bpf_map *map,
+@@ -141,10 +142,6 @@ int bpf_local_storage_map_check_btf(const struct bpf_map 
*map,
+ void bpf_selem_link_storage_nolock(struct bpf_local_storage *local_storage,
+                                  struct bpf_local_storage_elem *selem);
+ 
+-bool bpf_selem_unlink_storage_nolock(struct bpf_local_storage *local_storage,
+-                                   struct bpf_local_storage_elem *selem,
+-                                   bool uncharge_omem, bool use_trace_rcu);
+-
+ void bpf_selem_unlink(struct bpf_local_storage_elem *selem, bool 
use_trace_rcu);
+ 
+ void bpf_selem_link_map(struct bpf_local_storage_map *smap,
+diff --git a/include/linux/compiler_attributes.h 
b/include/linux/compiler_attributes.h
+index ae4c9579ca5f0..efe5e8067652b 100644
+--- a/include/linux/compiler_attributes.h
++++ b/include/linux/compiler_attributes.h
+@@ -321,6 +321,18 @@
+  */
+ #define __section(section)              __attribute__((__section__(section)))
+ 
++/*
++ * Optional: only supported since gcc >= 12
++ *
++ *   gcc: 
https://gcc.gnu.org/onlinedocs/gcc/Common-Variable-Attributes.html#index-uninitialized-variable-attribute
++ * clang: https://clang.llvm.org/docs/AttributeReference.html#uninitialized
++ */
++#if __has_attribute(__uninitialized__)
++# define __uninitialized              __attribute__((__uninitialized__))
++#else
++# define __uninitialized
++#endif
++
+ /*
+  *   gcc: 
https://gcc.gnu.org/onlinedocs/gcc/Common-Function-Attributes.html#index-unused-function-attribute
+  *   gcc: 
https://gcc.gnu.org/onlinedocs/gcc/Common-Type-Attributes.html#index-unused-type-attribute
+diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h
+index 93d2003091222..61906244c14d6 100644
+--- a/include/linux/mmzone.h
++++ b/include/linux/mmzone.h
+@@ -1814,8 +1814,9 @@ static inline int subsection_map_index(unsigned long pfn)
+ static inline int pfn_section_valid(struct mem_section *ms, unsigned long pfn)
+ {
+       int idx = subsection_map_index(pfn);
++      struct mem_section_usage *usage = READ_ONCE(ms->usage);
+ 
+-      return test_bit(idx, READ_ONCE(ms->usage)->subsection_map);
++      return usage ? test_bit(idx, usage->subsection_map) : 0;
+ }
+ #else
+ static inline int pfn_section_valid(struct mem_section *ms, unsigned long pfn)
+diff --git a/kernel/bpf/bpf_inode_storage.c b/kernel/bpf/bpf_inode_storage.c
+index 5f7683b191998..6a1d4d22816a3 100644
+--- a/kernel/bpf/bpf_inode_storage.c
++++ b/kernel/bpf/bpf_inode_storage.c
+@@ -56,11 +56,9 @@ static struct bpf_local_storage_data 
*inode_storage_lookup(struct inode *inode,
+ 
+ void bpf_inode_storage_free(struct inode *inode)
+ {
+-      struct bpf_local_storage_elem *selem;
+       struct bpf_local_storage *local_storage;
+       bool free_inode_storage = false;
+       struct bpf_storage_blob *bsb;
+-      struct hlist_node *n;
+ 
+       bsb = bpf_inode(inode);
+       if (!bsb)
+@@ -74,30 +72,11 @@ void bpf_inode_storage_free(struct inode *inode)
+               return;
+       }
+ 
+-      /* Neither the bpf_prog nor the bpf-map's syscall
+-       * could be modifying the local_storage->list now.
+-       * Thus, no elem can be added-to or deleted-from the
+-       * local_storage->list by the bpf_prog or by the bpf-map's syscall.
+-       *
+-       * It is racing with bpf_local_storage_map_free() alone
+-       * when unlinking elem from the local_storage->list and
+-       * the map's bucket->list.
+-       */
+       raw_spin_lock_bh(&local_storage->lock);
+-      hlist_for_each_entry_safe(selem, n, &local_storage->list, snode) {
+-              /* Always unlink from map before unlinking from
+-               * local_storage.
+-               */
+-              bpf_selem_unlink_map(selem);
+-              free_inode_storage = bpf_selem_unlink_storage_nolock(
+-                      local_storage, selem, false, false);
+-      }
++      free_inode_storage = bpf_local_storage_unlink_nolock(local_storage);
+       raw_spin_unlock_bh(&local_storage->lock);
+       rcu_read_unlock();
+ 
+-      /* free_inoode_storage should always be true as long as
+-       * local_storage->list was non-empty.
+-       */
+       if (free_inode_storage)
+               kfree_rcu(local_storage, rcu);
+ }
+@@ -226,23 +205,12 @@ static int notsupp_get_next_key(struct bpf_map *map, 
void *key,
+ 
+ static struct bpf_map *inode_storage_map_alloc(union bpf_attr *attr)
+ {
+-      struct bpf_local_storage_map *smap;
+-
+-      smap = bpf_local_storage_map_alloc(attr);
+-      if (IS_ERR(smap))
+-              return ERR_CAST(smap);
+-
+-      smap->cache_idx = bpf_local_storage_cache_idx_get(&inode_cache);
+-      return &smap->map;
++      return bpf_local_storage_map_alloc(attr, &inode_cache);
+ }
+ 
+ static void inode_storage_map_free(struct bpf_map *map)
+ {
+-      struct bpf_local_storage_map *smap;
+-
+-      smap = (struct bpf_local_storage_map *)map;
+-      bpf_local_storage_cache_idx_free(&inode_cache, smap->cache_idx);
+-      bpf_local_storage_map_free(smap, NULL);
++      bpf_local_storage_map_free(map, &inode_cache, NULL);
+ }
+ 
+ BTF_ID_LIST_SINGLE(inode_storage_map_btf_ids, struct,
+diff --git a/kernel/bpf/bpf_local_storage.c b/kernel/bpf/bpf_local_storage.c
+index d9d88a2cda5e5..51a9f024c1829 100644
+--- a/kernel/bpf/bpf_local_storage.c
++++ b/kernel/bpf/bpf_local_storage.c
+@@ -114,9 +114,9 @@ static void bpf_selem_free_rcu(struct rcu_head *rcu)
+  * The caller must ensure selem->smap is still valid to be
+  * dereferenced for its smap->elem_size and smap->cache_idx.
+  */
+-bool bpf_selem_unlink_storage_nolock(struct bpf_local_storage *local_storage,
+-                                   struct bpf_local_storage_elem *selem,
+-                                   bool uncharge_mem, bool use_trace_rcu)
++static bool bpf_selem_unlink_storage_nolock(struct bpf_local_storage 
*local_storage,
++                                          struct bpf_local_storage_elem 
*selem,
++                                          bool uncharge_mem, bool 
use_trace_rcu)
+ {
+       struct bpf_local_storage_map *smap;
+       bool free_local_storage;
+@@ -501,7 +501,7 @@ bpf_local_storage_update(void *owner, struct 
bpf_local_storage_map *smap,
+       return ERR_PTR(err);
+ }
+ 
+-u16 bpf_local_storage_cache_idx_get(struct bpf_local_storage_cache *cache)
++static u16 bpf_local_storage_cache_idx_get(struct bpf_local_storage_cache 
*cache)
+ {
+       u64 min_usage = U64_MAX;
+       u16 i, res = 0;
+@@ -525,21 +525,132 @@ u16 bpf_local_storage_cache_idx_get(struct 
bpf_local_storage_cache *cache)
+       return res;
+ }
+ 
+-void bpf_local_storage_cache_idx_free(struct bpf_local_storage_cache *cache,
+-                                    u16 idx)
++static void bpf_local_storage_cache_idx_free(struct bpf_local_storage_cache 
*cache,
++                                           u16 idx)
+ {
+       spin_lock(&cache->idx_lock);
+       cache->idx_usage_counts[idx]--;
+       spin_unlock(&cache->idx_lock);
+ }
+ 
+-void bpf_local_storage_map_free(struct bpf_local_storage_map *smap,
+-                              int __percpu *busy_counter)
++int bpf_local_storage_map_alloc_check(union bpf_attr *attr)
++{
++      if (attr->map_flags & ~BPF_LOCAL_STORAGE_CREATE_FLAG_MASK ||
++          !(attr->map_flags & BPF_F_NO_PREALLOC) ||
++          attr->max_entries ||
++          attr->key_size != sizeof(int) || !attr->value_size ||
++          /* Enforce BTF for userspace sk dumping */
++          !attr->btf_key_type_id || !attr->btf_value_type_id)
++              return -EINVAL;
++
++      if (!bpf_capable())
++              return -EPERM;
++
++      if (attr->value_size > BPF_LOCAL_STORAGE_MAX_VALUE_SIZE)
++              return -E2BIG;
++
++      return 0;
++}
++
++int bpf_local_storage_map_check_btf(const struct bpf_map *map,
++                                  const struct btf *btf,
++                                  const struct btf_type *key_type,
++                                  const struct btf_type *value_type)
++{
++      u32 int_data;
++
++      if (BTF_INFO_KIND(key_type->info) != BTF_KIND_INT)
++              return -EINVAL;
++
++      int_data = *(u32 *)(key_type + 1);
++      if (BTF_INT_BITS(int_data) != 32 || BTF_INT_OFFSET(int_data))
++              return -EINVAL;
++
++      return 0;
++}
++
++bool bpf_local_storage_unlink_nolock(struct bpf_local_storage *local_storage)
+ {
+       struct bpf_local_storage_elem *selem;
++      bool free_storage = false;
++      struct hlist_node *n;
++
++      /* Neither the bpf_prog nor the bpf_map's syscall
++       * could be modifying the local_storage->list now.
++       * Thus, no elem can be added to or deleted from the
++       * local_storage->list by the bpf_prog or by the bpf_map's syscall.
++       *
++       * It is racing with bpf_local_storage_map_free() alone
++       * when unlinking elem from the local_storage->list and
++       * the map's bucket->list.
++       */
++      hlist_for_each_entry_safe(selem, n, &local_storage->list, snode) {
++              /* Always unlink from map before unlinking from
++               * local_storage.
++               */
++              bpf_selem_unlink_map(selem);
++              /* If local_storage list has only one element, the
++               * bpf_selem_unlink_storage_nolock() will return true.
++               * Otherwise, it will return false. The current loop iteration
++               * intends to remove all local storage. So the last iteration
++               * of the loop will set the free_cgroup_storage to true.
++               */
++              free_storage = bpf_selem_unlink_storage_nolock(
++                      local_storage, selem, false, false);
++      }
++
++      return free_storage;
++}
++
++struct bpf_map *
++bpf_local_storage_map_alloc(union bpf_attr *attr,
++                          struct bpf_local_storage_cache *cache)
++{
++      struct bpf_local_storage_map *smap;
++      unsigned int i;
++      u32 nbuckets;
++
++      smap = bpf_map_area_alloc(sizeof(*smap), NUMA_NO_NODE);
++      if (!smap)
++              return ERR_PTR(-ENOMEM);
++      bpf_map_init_from_attr(&smap->map, attr);
++
++      nbuckets = roundup_pow_of_two(num_possible_cpus());
++      /* Use at least 2 buckets, select_bucket() is undefined behavior with 1 
bucket */
++      nbuckets = max_t(u32, 2, nbuckets);
++      smap->bucket_log = ilog2(nbuckets);
++
++      smap->buckets = bpf_map_kvcalloc(&smap->map, nbuckets,
++                                       sizeof(*smap->buckets), GFP_USER | 
__GFP_NOWARN);
++      if (!smap->buckets) {
++              bpf_map_area_free(smap);
++              return ERR_PTR(-ENOMEM);
++      }
++
++      for (i = 0; i < nbuckets; i++) {
++              INIT_HLIST_HEAD(&smap->buckets[i].list);
++              raw_spin_lock_init(&smap->buckets[i].lock);
++      }
++
++      smap->elem_size = offsetof(struct bpf_local_storage_elem,
++                                 sdata.data[attr->value_size]);
++
++      smap->cache_idx = bpf_local_storage_cache_idx_get(cache);
++      return &smap->map;
++}
++
++void bpf_local_storage_map_free(struct bpf_map *map,
++                              struct bpf_local_storage_cache *cache,
++                              int __percpu *busy_counter)
++{
+       struct bpf_local_storage_map_bucket *b;
++      struct bpf_local_storage_elem *selem;
++      struct bpf_local_storage_map *smap;
+       unsigned int i;
+ 
++      smap = (struct bpf_local_storage_map *)map;
++      bpf_local_storage_cache_idx_free(cache, smap->cache_idx);
++
+       /* Note that this map might be concurrently cloned from
+        * bpf_sk_storage_clone. Wait for any existing bpf_sk_storage_clone
+        * RCU read section to finish before proceeding. New RCU
+@@ -594,73 +705,3 @@ void bpf_local_storage_map_free(struct 
bpf_local_storage_map *smap,
+       kvfree(smap->buckets);
+       bpf_map_area_free(smap);
+ }
+-
+-int bpf_local_storage_map_alloc_check(union bpf_attr *attr)
+-{
+-      if (attr->map_flags & ~BPF_LOCAL_STORAGE_CREATE_FLAG_MASK ||
+-          !(attr->map_flags & BPF_F_NO_PREALLOC) ||
+-          attr->max_entries ||
+-          attr->key_size != sizeof(int) || !attr->value_size ||
+-          /* Enforce BTF for userspace sk dumping */
+-          !attr->btf_key_type_id || !attr->btf_value_type_id)
+-              return -EINVAL;
+-
+-      if (!bpf_capable())
+-              return -EPERM;
+-
+-      if (attr->value_size > BPF_LOCAL_STORAGE_MAX_VALUE_SIZE)
+-              return -E2BIG;
+-
+-      return 0;
+-}
+-
+-struct bpf_local_storage_map *bpf_local_storage_map_alloc(union bpf_attr 
*attr)
+-{
+-      struct bpf_local_storage_map *smap;
+-      unsigned int i;
+-      u32 nbuckets;
+-
+-      smap = bpf_map_area_alloc(sizeof(*smap), NUMA_NO_NODE);
+-      if (!smap)
+-              return ERR_PTR(-ENOMEM);
+-      bpf_map_init_from_attr(&smap->map, attr);
+-
+-      nbuckets = roundup_pow_of_two(num_possible_cpus());
+-      /* Use at least 2 buckets, select_bucket() is undefined behavior with 1 
bucket */
+-      nbuckets = max_t(u32, 2, nbuckets);
+-      smap->bucket_log = ilog2(nbuckets);
+-
+-      smap->buckets = kvcalloc(sizeof(*smap->buckets), nbuckets,
+-                               GFP_USER | __GFP_NOWARN | __GFP_ACCOUNT);
+-      if (!smap->buckets) {
+-              bpf_map_area_free(smap);
+-              return ERR_PTR(-ENOMEM);
+-      }
+-
+-      for (i = 0; i < nbuckets; i++) {
+-              INIT_HLIST_HEAD(&smap->buckets[i].list);
+-              raw_spin_lock_init(&smap->buckets[i].lock);
+-      }
+-
+-      smap->elem_size =
+-              sizeof(struct bpf_local_storage_elem) + attr->value_size;
+-
+-      return smap;
+-}
+-
+-int bpf_local_storage_map_check_btf(const struct bpf_map *map,
+-                                  const struct btf *btf,
+-                                  const struct btf_type *key_type,
+-                                  const struct btf_type *value_type)
+-{
+-      u32 int_data;
+-
+-      if (BTF_INFO_KIND(key_type->info) != BTF_KIND_INT)
+-              return -EINVAL;
+-
+-      int_data = *(u32 *)(key_type + 1);
+-      if (BTF_INT_BITS(int_data) != 32 || BTF_INT_OFFSET(int_data))
+-              return -EINVAL;
+-
+-      return 0;
+-}
+diff --git a/kernel/bpf/bpf_task_storage.c b/kernel/bpf/bpf_task_storage.c
+index 6f290623347e0..40a92edd6f539 100644
+--- a/kernel/bpf/bpf_task_storage.c
++++ b/kernel/bpf/bpf_task_storage.c
+@@ -71,10 +71,8 @@ task_storage_lookup(struct task_struct *task, struct 
bpf_map *map,
+ 
+ void bpf_task_storage_free(struct task_struct *task)
+ {
+-      struct bpf_local_storage_elem *selem;
+       struct bpf_local_storage *local_storage;
+       bool free_task_storage = false;
+-      struct hlist_node *n;
+       unsigned long flags;
+ 
+       rcu_read_lock();
+@@ -85,32 +83,13 @@ void bpf_task_storage_free(struct task_struct *task)
+               return;
+       }
+ 
+-      /* Neither the bpf_prog nor the bpf-map's syscall
+-       * could be modifying the local_storage->list now.
+-       * Thus, no elem can be added-to or deleted-from the
+-       * local_storage->list by the bpf_prog or by the bpf-map's syscall.
+-       *
+-       * It is racing with bpf_local_storage_map_free() alone
+-       * when unlinking elem from the local_storage->list and
+-       * the map's bucket->list.
+-       */
+       bpf_task_storage_lock();
+       raw_spin_lock_irqsave(&local_storage->lock, flags);
+-      hlist_for_each_entry_safe(selem, n, &local_storage->list, snode) {
+-              /* Always unlink from map before unlinking from
+-               * local_storage.
+-               */
+-              bpf_selem_unlink_map(selem);
+-              free_task_storage = bpf_selem_unlink_storage_nolock(
+-                      local_storage, selem, false, false);
+-      }
++      free_task_storage = bpf_local_storage_unlink_nolock(local_storage);
+       raw_spin_unlock_irqrestore(&local_storage->lock, flags);
+       bpf_task_storage_unlock();
+       rcu_read_unlock();
+ 
+-      /* free_task_storage should always be true as long as
+-       * local_storage->list was non-empty.
+-       */
+       if (free_task_storage)
+               kfree_rcu(local_storage, rcu);
+ }
+@@ -288,23 +267,12 @@ static int notsupp_get_next_key(struct bpf_map *map, 
void *key, void *next_key)
+ 
+ static struct bpf_map *task_storage_map_alloc(union bpf_attr *attr)
+ {
+-      struct bpf_local_storage_map *smap;
+-
+-      smap = bpf_local_storage_map_alloc(attr);
+-      if (IS_ERR(smap))
+-              return ERR_CAST(smap);
+-
+-      smap->cache_idx = bpf_local_storage_cache_idx_get(&task_cache);
+-      return &smap->map;
++      return bpf_local_storage_map_alloc(attr, &task_cache);
+ }
+ 
+ static void task_storage_map_free(struct bpf_map *map)
+ {
+-      struct bpf_local_storage_map *smap;
+-
+-      smap = (struct bpf_local_storage_map *)map;
+-      bpf_local_storage_cache_idx_free(&task_cache, smap->cache_idx);
+-      bpf_local_storage_map_free(smap, &bpf_task_storage_busy);
++      bpf_local_storage_map_free(map, &task_cache, &bpf_task_storage_busy);
+ }
+ 
+ BTF_ID_LIST_SINGLE(task_storage_map_btf_ids, struct, bpf_local_storage_map)
+diff --git a/kernel/bpf/syscall.c b/kernel/bpf/syscall.c
+index 1e46a84694b8a..d77597daa0022 100644
+--- a/kernel/bpf/syscall.c
++++ b/kernel/bpf/syscall.c
+@@ -470,6 +470,21 @@ void *bpf_map_kzalloc(const struct bpf_map *map, size_t 
size, gfp_t flags)
+       return ptr;
+ }
+ 
++void *bpf_map_kvcalloc(struct bpf_map *map, size_t n, size_t size,
++                     gfp_t flags)
++{
++      struct mem_cgroup *memcg, *old_memcg;
++      void *ptr;
++
++      memcg = bpf_map_get_memcg(map);
++      old_memcg = set_active_memcg(memcg);
++      ptr = kvcalloc(n, size, flags | __GFP_ACCOUNT);
++      set_active_memcg(old_memcg);
++      mem_cgroup_put(memcg);
++
++      return ptr;
++}
++
+ void __percpu *bpf_map_alloc_percpu(const struct bpf_map *map, size_t size,
+                                   size_t align, gfp_t flags)
+ {
+diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c
+index 56a5c8beb553d..8973d3c9597ce 100644
+--- a/kernel/bpf/verifier.c
++++ b/kernel/bpf/verifier.c
+@@ -3599,6 +3599,8 @@ static int check_stack_read_fixed_off(struct 
bpf_verifier_env *env,
+                                               continue;
+                                       if (type == STACK_MISC)
+                                               continue;
++                                      if (type == STACK_INVALID && 
env->allow_uninit_stack)
++                                              continue;
+                                       verbose(env, "invalid read from stack 
off %d+%d size %d\n",
+                                               off, i, size);
+                                       return -EACCES;
+@@ -3636,6 +3638,8 @@ static int check_stack_read_fixed_off(struct 
bpf_verifier_env *env,
+                               continue;
+                       if (type == STACK_ZERO)
+                               continue;
++                      if (type == STACK_INVALID && env->allow_uninit_stack)
++                              continue;
+                       verbose(env, "invalid read from stack off %d+%d size 
%d\n",
+                               off, i, size);
+                       return -EACCES;
+@@ -5426,7 +5430,8 @@ static int check_stack_range_initialized(
+               stype = &state->stack[spi].slot_type[slot % BPF_REG_SIZE];
+               if (*stype == STACK_MISC)
+                       goto mark;
+-              if (*stype == STACK_ZERO) {
++              if ((*stype == STACK_ZERO) ||
++                  (*stype == STACK_INVALID && env->allow_uninit_stack)) {
+                       if (clobber) {
+                               /* helper can write anything into the stack */
+                               *stype = STACK_MISC;
+@@ -11967,6 +11972,10 @@ static bool stacksafe(struct bpf_verifier_env *env, 
struct bpf_func_state *old,
+               if (old->stack[spi].slot_type[i % BPF_REG_SIZE] == 
STACK_INVALID)
+                       continue;
+ 
++              if (env->allow_uninit_stack &&
++                  old->stack[spi].slot_type[i % BPF_REG_SIZE] == STACK_MISC)
++                      continue;
++
+               /* explored stack has more populated slots than current stack
+                * and these slots were used
+                */
+diff --git a/kernel/sched/core.c b/kernel/sched/core.c
+index d71234729edb4..cac41c49bd2f5 100644
+--- a/kernel/sched/core.c
++++ b/kernel/sched/core.c
+@@ -701,7 +701,6 @@ static void update_rq_clock_task(struct rq *rq, s64 delta)
+ 
+       rq->prev_irq_time += irq_delta;
+       delta -= irq_delta;
+-      psi_account_irqtime(rq->curr, irq_delta);
+ #endif
+ #ifdef CONFIG_PARAVIRT_TIME_ACCOUNTING
+       if (static_key_false((&paravirt_steal_rq_enabled))) {
+@@ -5500,7 +5499,7 @@ void scheduler_tick(void)
+ {
+       int cpu = smp_processor_id();
+       struct rq *rq = cpu_rq(cpu);
+-      struct task_struct *curr = rq->curr;
++      struct task_struct *curr;
+       struct rq_flags rf;
+       unsigned long thermal_pressure;
+       u64 resched_latency;
+@@ -5512,6 +5511,9 @@ void scheduler_tick(void)
+ 
+       rq_lock(rq, &rf);
+ 
++      curr = rq->curr;
++      psi_account_irqtime(rq, curr, NULL);
++
+       update_rq_clock(rq);
+       thermal_pressure = arch_scale_thermal_pressure(cpu_of(rq));
+       update_thermal_load_avg(rq_clock_thermal(rq), rq, thermal_pressure);
+@@ -6550,6 +6552,7 @@ static void __sched notrace __schedule(unsigned int 
sched_mode)
+               ++*switch_count;
+ 
+               migrate_disable_switch(rq, prev);
++              psi_account_irqtime(rq, prev, next);
+               psi_sched_switch(prev, next, !task_on_rq_queued(prev));
+ 
+               trace_sched_switch(sched_mode & SM_MASK_PREEMPT, prev, next, 
prev_state);
+diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
+index 0de8354d5ad0a..d0851610cf467 100644
+--- a/kernel/sched/fair.c
++++ b/kernel/sched/fair.c
+@@ -8479,12 +8479,8 @@ static int detach_tasks(struct lb_env *env)
+                       break;
+ 
+               env->loop++;
+-              /*
+-               * We've more or less seen every task there is, call it quits
+-               * unless we haven't found any movable task yet.
+-               */
+-              if (env->loop > env->loop_max &&
+-                  !(env->flags & LBF_ALL_PINNED))
++              /* We've more or less seen every task there is, call it quits */
++              if (env->loop > env->loop_max)
+                       break;
+ 
+               /* take a breather every nr_migrate tasks */
+@@ -10623,9 +10619,7 @@ static int load_balance(int this_cpu, struct rq 
*this_rq,
+ 
+               if (env.flags & LBF_NEED_BREAK) {
+                       env.flags &= ~LBF_NEED_BREAK;
+-                      /* Stop if we tried all running tasks */
+-                      if (env.loop < busiest->nr_running)
+-                              goto more_balance;
++                      goto more_balance;
+               }
+ 
+               /*
+diff --git a/kernel/sched/psi.c b/kernel/sched/psi.c
+index 80d8c10e93638..81dbced92df5f 100644
+--- a/kernel/sched/psi.c
++++ b/kernel/sched/psi.c
+@@ -785,6 +785,7 @@ static void psi_group_change(struct psi_group *group, int 
cpu,
+       enum psi_states s;
+       u32 state_mask;
+ 
++      lockdep_assert_rq_held(cpu_rq(cpu));
+       groupc = per_cpu_ptr(group->pcpu, cpu);
+ 
+       /*
+@@ -1003,19 +1004,29 @@ void psi_task_switch(struct task_struct *prev, struct 
task_struct *next,
+ }
+ 
+ #ifdef CONFIG_IRQ_TIME_ACCOUNTING
+-void psi_account_irqtime(struct task_struct *task, u32 delta)
++void psi_account_irqtime(struct rq *rq, struct task_struct *curr, struct 
task_struct *prev)
+ {
+-      int cpu = task_cpu(task);
++      int cpu = task_cpu(curr);
+       struct psi_group *group;
+       struct psi_group_cpu *groupc;
+-      u64 now;
++      u64 now, irq;
++      s64 delta;
+ 
+-      if (!task->pid)
++      if (!curr->pid)
++              return;
++
++      lockdep_assert_rq_held(rq);
++      group = task_psi_group(curr);
++      if (prev && task_psi_group(prev) == group)
+               return;
+ 
+       now = cpu_clock(cpu);
++      irq = irq_time_read(cpu);
++      delta = (s64)(irq - rq->psi_irq_time);
++      if (delta < 0)
++              return;
++      rq->psi_irq_time = irq;
+ 
+-      group = task_psi_group(task);
+       do {
+               if (!group->enabled)
+                       continue;
+diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
+index b62d53d7c264f..81d9698f0a1eb 100644
+--- a/kernel/sched/sched.h
++++ b/kernel/sched/sched.h
+@@ -1084,6 +1084,7 @@ struct rq {
+ 
+ #ifdef CONFIG_IRQ_TIME_ACCOUNTING
+       u64                     prev_irq_time;
++      u64                     psi_irq_time;
+ #endif
+ #ifdef CONFIG_PARAVIRT
+       u64                     prev_steal_time;
+diff --git a/kernel/sched/stats.h b/kernel/sched/stats.h
+index 84a188913cc9d..b49a96fad1d2f 100644
+--- a/kernel/sched/stats.h
++++ b/kernel/sched/stats.h
+@@ -110,8 +110,12 @@ __schedstats_from_se(struct sched_entity *se)
+ void psi_task_change(struct task_struct *task, int clear, int set);
+ void psi_task_switch(struct task_struct *prev, struct task_struct *next,
+                    bool sleep);
+-void psi_account_irqtime(struct task_struct *task, u32 delta);
+-
++#ifdef CONFIG_IRQ_TIME_ACCOUNTING
++void psi_account_irqtime(struct rq *rq, struct task_struct *curr, struct 
task_struct *prev);
++#else
++static inline void psi_account_irqtime(struct rq *rq, struct task_struct 
*curr,
++                                     struct task_struct *prev) {}
++#endif /*CONFIG_IRQ_TIME_ACCOUNTING */
+ /*
+  * PSI tracks state that persists across sleeps, such as iowaits and
+  * memory stalls. As a result, it has to distinguish between sleeps,
+@@ -206,7 +210,8 @@ static inline void psi_ttwu_dequeue(struct task_struct *p) 
{}
+ static inline void psi_sched_switch(struct task_struct *prev,
+                                   struct task_struct *next,
+                                   bool sleep) {}
+-static inline void psi_account_irqtime(struct task_struct *task, u32 delta) {}
++static inline void psi_account_irqtime(struct rq *rq, struct task_struct 
*curr,
++                                     struct task_struct *prev) {}
+ #endif /* CONFIG_PSI */
+ 
+ #ifdef CONFIG_SCHED_INFO
+diff --git a/net/ceph/mon_client.c b/net/ceph/mon_client.c
+index db60217f911b3..2cf1254fd4522 100644
+--- a/net/ceph/mon_client.c
++++ b/net/ceph/mon_client.c
+@@ -1085,13 +1085,19 @@ static void delayed_work(struct work_struct *work)
+       struct ceph_mon_client *monc =
+               container_of(work, struct ceph_mon_client, delayed_work.work);
+ 
+-      dout("monc delayed_work\n");
+       mutex_lock(&monc->mutex);
++      dout("%s mon%d\n", __func__, monc->cur_mon);
++      if (monc->cur_mon < 0) {
++              goto out;
++      }
++
+       if (monc->hunting) {
+               dout("%s continuing hunt\n", __func__);
+               reopen_session(monc);
+       } else {
+               int is_auth = ceph_auth_is_authenticated(monc->auth);
++
++              dout("%s is_authed %d\n", __func__, is_auth);
+               if (ceph_con_keepalive_expired(&monc->con,
+                                              CEPH_MONC_PING_TIMEOUT)) {
+                       dout("monc keepalive timeout\n");
+@@ -1116,6 +1122,8 @@ static void delayed_work(struct work_struct *work)
+               }
+       }
+       __schedule_delayed(monc);
++
++out:
+       mutex_unlock(&monc->mutex);
+ }
+ 
+@@ -1232,13 +1240,15 @@ EXPORT_SYMBOL(ceph_monc_init);
+ void ceph_monc_stop(struct ceph_mon_client *monc)
+ {
+       dout("stop\n");
+-      cancel_delayed_work_sync(&monc->delayed_work);
+ 
+       mutex_lock(&monc->mutex);
+       __close_session(monc);
++      monc->hunting = false;
+       monc->cur_mon = -1;
+       mutex_unlock(&monc->mutex);
+ 
++      cancel_delayed_work_sync(&monc->delayed_work);
++
+       /*
+        * flush msgr queue before we destroy ourselves to ensure that:
+        *  - any work that references our embedded con is finished.
+diff --git a/net/core/bpf_sk_storage.c b/net/core/bpf_sk_storage.c
+index ad01b1bea52e4..0124536e8a9db 100644
+--- a/net/core/bpf_sk_storage.c
++++ b/net/core/bpf_sk_storage.c
+@@ -48,10 +48,8 @@ static int bpf_sk_storage_del(struct sock *sk, struct 
bpf_map *map)
+ /* Called by __sk_destruct() & bpf_sk_storage_clone() */
+ void bpf_sk_storage_free(struct sock *sk)
+ {
+-      struct bpf_local_storage_elem *selem;
+       struct bpf_local_storage *sk_storage;
+       bool free_sk_storage = false;
+-      struct hlist_node *n;
+ 
+       rcu_read_lock();
+       sk_storage = rcu_dereference(sk->sk_bpf_storage);
+@@ -60,24 +58,8 @@ void bpf_sk_storage_free(struct sock *sk)
+               return;
+       }
+ 
+-      /* Netiher the bpf_prog nor the bpf-map's syscall
+-       * could be modifying the sk_storage->list now.
+-       * Thus, no elem can be added-to or deleted-from the
+-       * sk_storage->list by the bpf_prog or by the bpf-map's syscall.
+-       *
+-       * It is racing with bpf_local_storage_map_free() alone
+-       * when unlinking elem from the sk_storage->list and
+-       * the map's bucket->list.
+-       */
+       raw_spin_lock_bh(&sk_storage->lock);
+-      hlist_for_each_entry_safe(selem, n, &sk_storage->list, snode) {
+-              /* Always unlink from map before unlinking from
+-               * sk_storage.
+-               */
+-              bpf_selem_unlink_map(selem);
+-              free_sk_storage = bpf_selem_unlink_storage_nolock(
+-                      sk_storage, selem, true, false);
+-      }
++      free_sk_storage = bpf_local_storage_unlink_nolock(sk_storage);
+       raw_spin_unlock_bh(&sk_storage->lock);
+       rcu_read_unlock();
+ 
+@@ -87,23 +69,12 @@ void bpf_sk_storage_free(struct sock *sk)
+ 
+ static void bpf_sk_storage_map_free(struct bpf_map *map)
+ {
+-      struct bpf_local_storage_map *smap;
+-
+-      smap = (struct bpf_local_storage_map *)map;
+-      bpf_local_storage_cache_idx_free(&sk_cache, smap->cache_idx);
+-      bpf_local_storage_map_free(smap, NULL);
++      bpf_local_storage_map_free(map, &sk_cache, NULL);
+ }
+ 
+ static struct bpf_map *bpf_sk_storage_map_alloc(union bpf_attr *attr)
+ {
+-      struct bpf_local_storage_map *smap;
+-
+-      smap = bpf_local_storage_map_alloc(attr);
+-      if (IS_ERR(smap))
+-              return ERR_CAST(smap);
+-
+-      smap->cache_idx = bpf_local_storage_cache_idx_get(&sk_cache);
+-      return &smap->map;
++      return bpf_local_storage_map_alloc(attr, &sk_cache);
+ }
+ 
+ static int notsupp_get_next_key(struct bpf_map *map, void *key,
+diff --git a/net/core/datagram.c b/net/core/datagram.c
+index cdd65ca3124a4..87c39cc12327f 100644
+--- a/net/core/datagram.c
++++ b/net/core/datagram.c
+@@ -441,11 +441,12 @@ static int __skb_datagram_iter(const struct sk_buff 
*skb, int offset,
+                       if (copy > len)
+                               copy = len;
+ 
++                      n = 0;
+                       skb_frag_foreach_page(frag,
+                                             skb_frag_off(frag) + offset - 
start,
+                                             copy, p, p_off, p_len, copied) {
+                               vaddr = kmap_local_page(p);
+-                              n = INDIRECT_CALL_1(cb, simple_copy_to_iter,
++                              n += INDIRECT_CALL_1(cb, simple_copy_to_iter,
+                                       vaddr + p_off, p_len, data, to);
+                               kunmap_local(vaddr);
+                       }
+diff --git a/net/core/skmsg.c b/net/core/skmsg.c
+index 8b0459a6b629f..746d950de0e14 100644
+--- a/net/core/skmsg.c
++++ b/net/core/skmsg.c
+@@ -433,7 +433,8 @@ int sk_msg_recvmsg(struct sock *sk, struct sk_psock 
*psock, struct msghdr *msg,
+                       page = sg_page(sge);
+                       if (copied + copy > len)
+                               copy = len - copied;
+-                      copy = copy_page_to_iter(page, sge->offset, copy, iter);
++                      if (copy)
++                              copy = copy_page_to_iter(page, sge->offset, 
copy, iter);
+                       if (!copy) {
+                               copied = copied ? copied : -EFAULT;
+                               goto out;
+diff --git a/net/ethtool/linkstate.c b/net/ethtool/linkstate.c
+index fb676f349455a..470582a70ccbe 100644
+--- a/net/ethtool/linkstate.c
++++ b/net/ethtool/linkstate.c
+@@ -36,6 +36,8 @@ static int linkstate_get_sqi(struct net_device *dev)
+       mutex_lock(&phydev->lock);
+       if (!phydev->drv || !phydev->drv->get_sqi)
+               ret = -EOPNOTSUPP;
++      else if (!phydev->link)
++              ret = -ENETDOWN;
+       else
+               ret = phydev->drv->get_sqi(phydev);
+       mutex_unlock(&phydev->lock);
+@@ -54,6 +56,8 @@ static int linkstate_get_sqi_max(struct net_device *dev)
+       mutex_lock(&phydev->lock);
+       if (!phydev->drv || !phydev->drv->get_sqi_max)
+               ret = -EOPNOTSUPP;
++      else if (!phydev->link)
++              ret = -ENETDOWN;
+       else
+               ret = phydev->drv->get_sqi_max(phydev);
+       mutex_unlock(&phydev->lock);
+@@ -61,6 +65,17 @@ static int linkstate_get_sqi_max(struct net_device *dev)
+       return ret;
+ };
+ 
++static bool linkstate_sqi_critical_error(int sqi)
++{
++      return sqi < 0 && sqi != -EOPNOTSUPP && sqi != -ENETDOWN;
++}
++
++static bool linkstate_sqi_valid(struct linkstate_reply_data *data)
++{
++      return data->sqi >= 0 && data->sqi_max >= 0 &&
++             data->sqi <= data->sqi_max;
++}
++
+ static int linkstate_get_link_ext_state(struct net_device *dev,
+                                       struct linkstate_reply_data *data)
+ {
+@@ -92,12 +107,12 @@ static int linkstate_prepare_data(const struct 
ethnl_req_info *req_base,
+       data->link = __ethtool_get_link(dev);
+ 
+       ret = linkstate_get_sqi(dev);
+-      if (ret < 0 && ret != -EOPNOTSUPP)
++      if (linkstate_sqi_critical_error(ret))
+               goto out;
+       data->sqi = ret;
+ 
+       ret = linkstate_get_sqi_max(dev);
+-      if (ret < 0 && ret != -EOPNOTSUPP)
++      if (linkstate_sqi_critical_error(ret))
+               goto out;
+       data->sqi_max = ret;
+ 
+@@ -122,11 +137,10 @@ static int linkstate_reply_size(const struct 
ethnl_req_info *req_base,
+       len = nla_total_size(sizeof(u8)) /* LINKSTATE_LINK */
+               + 0;
+ 
+-      if (data->sqi != -EOPNOTSUPP)
+-              len += nla_total_size(sizeof(u32));
+-
+-      if (data->sqi_max != -EOPNOTSUPP)
+-              len += nla_total_size(sizeof(u32));
++      if (linkstate_sqi_valid(data)) {
++              len += nla_total_size(sizeof(u32)); /* LINKSTATE_SQI */
++              len += nla_total_size(sizeof(u32)); /* LINKSTATE_SQI_MAX */
++      }
+ 
+       if (data->link_ext_state_provided)
+               len += nla_total_size(sizeof(u8)); /* LINKSTATE_EXT_STATE */
+@@ -147,13 +161,14 @@ static int linkstate_fill_reply(struct sk_buff *skb,
+           nla_put_u8(skb, ETHTOOL_A_LINKSTATE_LINK, !!data->link))
+               return -EMSGSIZE;
+ 
+-      if (data->sqi != -EOPNOTSUPP &&
+-          nla_put_u32(skb, ETHTOOL_A_LINKSTATE_SQI, data->sqi))
+-              return -EMSGSIZE;
++      if (linkstate_sqi_valid(data)) {
++              if (nla_put_u32(skb, ETHTOOL_A_LINKSTATE_SQI, data->sqi))
++                      return -EMSGSIZE;
+ 
+-      if (data->sqi_max != -EOPNOTSUPP &&
+-          nla_put_u32(skb, ETHTOOL_A_LINKSTATE_SQI_MAX, data->sqi_max))
+-              return -EMSGSIZE;
++              if (nla_put_u32(skb, ETHTOOL_A_LINKSTATE_SQI_MAX,
++                              data->sqi_max))
++                      return -EMSGSIZE;
++      }
+ 
+       if (data->link_ext_state_provided) {
+               if (nla_put_u8(skb, ETHTOOL_A_LINKSTATE_EXT_STATE,
+diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
+index 317cb90d77102..359ffda9b736b 100644
+--- a/net/ipv4/tcp_input.c
++++ b/net/ipv4/tcp_input.c
+@@ -2101,8 +2101,16 @@ void tcp_clear_retrans(struct tcp_sock *tp)
+ static inline void tcp_init_undo(struct tcp_sock *tp)
+ {
+       tp->undo_marker = tp->snd_una;
++
+       /* Retransmission still in flight may cause DSACKs later. */
+-      tp->undo_retrans = tp->retrans_out ? : -1;
++      /* First, account for regular retransmits in flight: */
++      tp->undo_retrans = tp->retrans_out;
++      /* Next, account for TLP retransmits in flight: */
++      if (tp->tlp_high_seq && tp->tlp_retrans)
++              tp->undo_retrans++;
++      /* Finally, avoid 0, because undo_retrans==0 means "can undo now": */
++      if (!tp->undo_retrans)
++              tp->undo_retrans = -1;
+ }
+ 
+ static bool tcp_is_rack(const struct sock *sk)
+@@ -2181,6 +2189,7 @@ void tcp_enter_loss(struct sock *sk)
+ 
+       tcp_set_ca_state(sk, TCP_CA_Loss);
+       tp->high_seq = tp->snd_nxt;
++      tp->tlp_high_seq = 0;
+       tcp_ecn_queue_cwr(tp);
+ 
+       /* F-RTO RFC5682 sec 3.1 step 1: retransmit SND.UNA if no previous
+diff --git a/net/ipv4/tcp_timer.c b/net/ipv4/tcp_timer.c
+index 44b49f7d1a9e6..016f9eff49b40 100644
+--- a/net/ipv4/tcp_timer.c
++++ b/net/ipv4/tcp_timer.c
+@@ -444,17 +444,34 @@ static void tcp_fastopen_synack_timer(struct sock *sk, 
struct request_sock *req)
+ static bool tcp_rtx_probe0_timed_out(const struct sock *sk,
+                                    const struct sk_buff *skb)
+ {
++      const struct inet_connection_sock *icsk = inet_csk(sk);
++      u32 user_timeout = READ_ONCE(icsk->icsk_user_timeout);
+       const struct tcp_sock *tp = tcp_sk(sk);
+-      const int timeout = TCP_RTO_MAX * 2;
+-      u32 rcv_delta, rtx_delta;
+-
+-      rcv_delta = inet_csk(sk)->icsk_timeout - tp->rcv_tstamp;
+-      if (rcv_delta <= timeout)
+-              return false;
++      int timeout = TCP_RTO_MAX * 2;
++      u32 rtx_delta;
++      s32 rcv_delta;
+ 
+       rtx_delta = (u32)msecs_to_jiffies(tcp_time_stamp(tp) -
+                       (tp->retrans_stamp ?: tcp_skb_timestamp(skb)));
+ 
++      if (user_timeout) {
++              /* If user application specified a TCP_USER_TIMEOUT,
++               * it does not want win 0 packets to 'reset the timer'
++               * while retransmits are not making progress.
++               */
++              if (rtx_delta > user_timeout)
++                      return true;
++              timeout = min_t(u32, timeout, msecs_to_jiffies(user_timeout));
++      }
++
++      /* Note: timer interrupt might have been delayed by at least one jiffy,
++       * and tp->rcv_tstamp might very well have been written recently.
++       * rcv_delta can thus be negative.
++       */
++      rcv_delta = icsk->icsk_timeout - tp->rcv_tstamp;
++      if (rcv_delta <= timeout)
++              return false;
++
+       return rtx_delta > timeout;
+ }
+ 
+@@ -496,8 +513,6 @@ void tcp_retransmit_timer(struct sock *sk)
+       if (WARN_ON_ONCE(!skb))
+               return;
+ 
+-      tp->tlp_high_seq = 0;
+-
+       if (!tp->snd_wnd && !sock_flag(sk, SOCK_DEAD) &&
+           !((1 << sk->sk_state) & (TCPF_SYN_SENT | TCPF_SYN_RECV))) {
+               /* Receiver dastardly shrinks window. Our retransmits
+diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
+index b8f93c1479ae1..53267566808c1 100644
+--- a/net/ipv4/udp.c
++++ b/net/ipv4/udp.c
+@@ -319,6 +319,8 @@ int udp_lib_get_port(struct sock *sk, unsigned short snum,
+                       goto fail_unlock;
+               }
+ 
++              sock_set_flag(sk, SOCK_RCU_FREE);
++
+               sk_add_node_rcu(sk, &hslot->head);
+               hslot->count++;
+               sock_prot_inuse_add(sock_net(sk), sk->sk_prot, 1);
+@@ -335,7 +337,7 @@ int udp_lib_get_port(struct sock *sk, unsigned short snum,
+               hslot2->count++;
+               spin_unlock(&hslot2->lock);
+       }
+-      sock_set_flag(sk, SOCK_RCU_FREE);
++
+       error = 0;
+ fail_unlock:
+       spin_unlock_bh(&hslot->lock);
+diff --git a/net/sched/act_ct.c b/net/sched/act_ct.c
+index cd95a315fde82..44ff7f356ec15 100644
+--- a/net/sched/act_ct.c
++++ b/net/sched/act_ct.c
+@@ -1212,6 +1212,14 @@ static int tcf_ct_act(struct sk_buff *skb, const struct 
tc_action *a,
+                */
+               if (nf_conntrack_confirm(skb) != NF_ACCEPT)
+                       goto drop;
++
++              /* The ct may be dropped if a clash has been resolved,
++               * so it's necessary to retrieve it from skb again to
++               * prevent UAF.
++               */
++              ct = nf_ct_get(skb, &ctinfo);
++              if (!ct)
++                      skip_add = true;
+       }
+ 
+       if (!skip_add)
+diff --git a/net/sunrpc/xprtsock.c b/net/sunrpc/xprtsock.c
+index 05aa32696e7c2..02f651f85e739 100644
+--- a/net/sunrpc/xprtsock.c
++++ b/net/sunrpc/xprtsock.c
+@@ -2333,6 +2333,13 @@ static void xs_tcp_setup_socket(struct work_struct 
*work)
+               transport->srcport = 0;
+               status = -EAGAIN;
+               break;
++      case -EPERM:
++              /* Happens, for instance, if a BPF program is preventing
++               * the connect. Remap the error so upper layers can better
++               * deal with it.
++               */
++              status = -ECONNREFUSED;
++              fallthrough;
+       case -EINVAL:
+               /* Happens, for instance, if the user specified a link
+                * local IPv6 address without a scope-id.
+diff --git a/scripts/ld-version.sh b/scripts/ld-version.sh
+index a78b804b680cf..b9513d224476f 100755
+--- a/scripts/ld-version.sh
++++ b/scripts/ld-version.sh
+@@ -57,9 +57,11 @@ else
+       fi
+ fi
+ 
+-# Some distributions append a package release number, as in 2.34-4.fc32
+-# Trim the hyphen and any characters that follow.
+-version=${version%-*}
++# There may be something after the version, such as a distribution's package
++# release number (like Fedora's "2.34-4.fc32") or punctuation (like LLD 
briefly
++# added before the "compatible with GNU linkers" string), so remove everything
++# after just numbers and periods.
++version=${version%%[!0-9.]*}
+ 
+ cversion=$(get_canonical_version $version)
+ min_cversion=$(get_canonical_version $min_version)
+diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
+index 4635dc70a8404..06f00819d1a8a 100644
+--- a/sound/pci/hda/patch_realtek.c
++++ b/sound/pci/hda/patch_realtek.c
+@@ -9661,6 +9661,7 @@ static const struct snd_pci_quirk alc269_fixup_tbl[] = {
+       SND_PCI_QUIRK(0x103c, 0x83b9, "HP Spectre x360", 
ALC269_FIXUP_HP_MUTE_LED_MIC3),
+       SND_PCI_QUIRK(0x103c, 0x841c, "HP Pavilion 15-CK0xx", 
ALC269_FIXUP_HP_MUTE_LED_MIC3),
+       SND_PCI_QUIRK(0x103c, 0x8497, "HP Envy x360", 
ALC269_FIXUP_HP_MUTE_LED_MIC3),
++      SND_PCI_QUIRK(0x103c, 0x84a6, "HP 250 G7 Notebook PC", 
ALC269_FIXUP_HP_LINE1_MIC1_LED),
+       SND_PCI_QUIRK(0x103c, 0x84ae, "HP 15-db0403ng", 
ALC236_FIXUP_HP_MUTE_LED_COEFBIT2),
+       SND_PCI_QUIRK(0x103c, 0x84da, "HP OMEN dc0019-ur", 
ALC295_FIXUP_HP_OMEN),
+       SND_PCI_QUIRK(0x103c, 0x84e7, "HP Pavilion 15", 
ALC269_FIXUP_HP_MUTE_LED_MIC3),
+@@ -9922,6 +9923,7 @@ static const struct snd_pci_quirk alc269_fixup_tbl[] = {
+       SND_PCI_QUIRK(0x10cf, 0x1845, "Lifebook U904", 
ALC269_FIXUP_LIFEBOOK_EXTMIC),
+       SND_PCI_QUIRK(0x10ec, 0x10f2, "Intel Reference board", 
ALC700_FIXUP_INTEL_REFERENCE),
+       SND_PCI_QUIRK(0x10ec, 0x118c, "Medion EE4254 MD62100", 
ALC256_FIXUP_MEDION_HEADSET_NO_PRESENCE),
++      SND_PCI_QUIRK(0x10ec, 0x11bc, "VAIO VJFE-IL", 
ALC269_FIXUP_LIMIT_INT_MIC_BOOST),
+       SND_PCI_QUIRK(0x10ec, 0x1230, "Intel Reference board", 
ALC295_FIXUP_CHROME_BOOK),
+       SND_PCI_QUIRK(0x10ec, 0x124c, "Intel Reference board", 
ALC295_FIXUP_CHROME_BOOK),
+       SND_PCI_QUIRK(0x10ec, 0x1252, "Intel Reference board", 
ALC295_FIXUP_CHROME_BOOK),
+@@ -10015,6 +10017,7 @@ static const struct snd_pci_quirk alc269_fixup_tbl[] = 
{
+       SND_PCI_QUIRK(0x1558, 0xa600, "Clevo NL50NU", 
ALC293_FIXUP_SYSTEM76_MIC_NO_PRESENCE),
+       SND_PCI_QUIRK(0x1558, 0xa650, "Clevo NP[567]0SN[CD]", 
ALC256_FIXUP_SYSTEM76_MIC_NO_PRESENCE),
+       SND_PCI_QUIRK(0x1558, 0xa671, "Clevo NP70SN[CDE]", 
ALC256_FIXUP_SYSTEM76_MIC_NO_PRESENCE),
++      SND_PCI_QUIRK(0x1558, 0xa763, "Clevo V54x_6x_TU", 
ALC256_FIXUP_SYSTEM76_MIC_NO_PRESENCE),
+       SND_PCI_QUIRK(0x1558, 0xb018, "Clevo NP50D[BE]", 
ALC293_FIXUP_SYSTEM76_MIC_NO_PRESENCE),
+       SND_PCI_QUIRK(0x1558, 0xb019, "Clevo NH77D[BE]Q", 
ALC293_FIXUP_SYSTEM76_MIC_NO_PRESENCE),
+       SND_PCI_QUIRK(0x1558, 0xb022, "Clevo NH77D[DC][QW]", 
ALC293_FIXUP_SYSTEM76_MIC_NO_PRESENCE),
+@@ -10153,6 +10156,7 @@ static const struct snd_pci_quirk alc269_fixup_tbl[] = 
{
+       SND_PCI_QUIRK(0x1d72, 0x1901, "RedmiBook 14", 
ALC256_FIXUP_ASUS_HEADSET_MIC),
+       SND_PCI_QUIRK(0x1d72, 0x1945, "Redmi G", ALC256_FIXUP_ASUS_HEADSET_MIC),
+       SND_PCI_QUIRK(0x1d72, 0x1947, "RedmiBook Air", 
ALC255_FIXUP_XIAOMI_HEADSET_MIC),
++      SND_PCI_QUIRK(0x2782, 0x0214, "VAIO VJFE-CL", 
ALC269_FIXUP_LIMIT_INT_MIC_BOOST),
+       SND_PCI_QUIRK(0x2782, 0x0232, "CHUWI CoreBook XPro", 
ALC269VB_FIXUP_CHUWI_COREBOOK_XPRO),
+       SND_PCI_QUIRK(0x2782, 0x1707, "Vaio VJFE-ADL", ALC298_FIXUP_SPK_VOLUME),
+       SND_PCI_QUIRK(0x8086, 0x2074, "Intel NUC 8", 
ALC233_FIXUP_INTEL_NUC8_DMIC),
+diff --git a/tools/testing/selftests/bpf/progs/test_global_func10.c 
b/tools/testing/selftests/bpf/progs/test_global_func10.c
+index 97b7031d0e227..d361eba167f6a 100644
+--- a/tools/testing/selftests/bpf/progs/test_global_func10.c
++++ b/tools/testing/selftests/bpf/progs/test_global_func10.c
+@@ -4,12 +4,12 @@
+ #include <bpf/bpf_helpers.h>
+ 
+ struct Small {
+-      int x;
++      long x;
+ };
+ 
+ struct Big {
+-      int x;
+-      int y;
++      long x;
++      long y;
+ };
+ 
+ __noinline int foo(const struct Big *big)
+@@ -21,7 +21,8 @@ __noinline int foo(const struct Big *big)
+ }
+ 
+ SEC("cgroup_skb/ingress")
+-int test_cls(struct __sk_buff *skb)
++__failure __msg("invalid indirect access to stack")
++int global_func10(struct __sk_buff *skb)
+ {
+       const struct Small small = {.x = skb->len };
+ 
+diff --git a/tools/testing/selftests/bpf/verifier/calls.c 
b/tools/testing/selftests/bpf/verifier/calls.c
+index e1a937277b54d..a201d2871bfbd 100644
+--- a/tools/testing/selftests/bpf/verifier/calls.c
++++ b/tools/testing/selftests/bpf/verifier/calls.c
+@@ -2221,19 +2221,22 @@
+        * that fp-8 stack slot was unused in the fall-through
+        * branch and will accept the program incorrectly
+        */
+-      BPF_JMP_IMM(BPF_JGT, BPF_REG_1, 2, 2),
++      BPF_EMIT_CALL(BPF_FUNC_get_prandom_u32),
++      BPF_JMP_IMM(BPF_JGT, BPF_REG_0, 2, 2),
+       BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
+       BPF_JMP_IMM(BPF_JA, 0, 0, 0),
+       BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+       BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+       BPF_LD_MAP_FD(BPF_REG_1, 0),
+       BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
++      BPF_MOV64_IMM(BPF_REG_0, 0),
+       BPF_EXIT_INSN(),
+       },
+-      .fixup_map_hash_48b = { 6 },
+-      .errstr = "invalid indirect read from stack R2 off -8+0 size 8",
+-      .result = REJECT,
+-      .prog_type = BPF_PROG_TYPE_XDP,
++      .fixup_map_hash_48b = { 7 },
++      .errstr_unpriv = "invalid indirect read from stack R2 off -8+0 size 8",
++      .result_unpriv = REJECT,
++      /* in privileged mode reads from uninitialized stack locations are 
permitted */
++      .result = ACCEPT,
+ },
+ {
+       "calls: ctx read at start of subprog",
+diff --git a/tools/testing/selftests/bpf/verifier/helper_access_var_len.c 
b/tools/testing/selftests/bpf/verifier/helper_access_var_len.c
+index a6c869a7319cd..9c4885885aba0 100644
+--- a/tools/testing/selftests/bpf/verifier/helper_access_var_len.c
++++ b/tools/testing/selftests/bpf/verifier/helper_access_var_len.c
+@@ -29,19 +29,30 @@
+ {
+       "helper access to variable memory: stack, bitwise AND, zero included",
+       .insns = {
+-      BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, 8),
+-      BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
+-      BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64),
+-      BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, -128),
+-      BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -128),
+-      BPF_ALU64_IMM(BPF_AND, BPF_REG_2, 64),
+-      BPF_MOV64_IMM(BPF_REG_3, 0),
+-      BPF_EMIT_CALL(BPF_FUNC_probe_read_kernel),
++      /* set max stack size */
++      BPF_ST_MEM(BPF_DW, BPF_REG_10, -128, 0),
++      /* set r3 to a random value */
++      BPF_EMIT_CALL(BPF_FUNC_get_prandom_u32),
++      BPF_MOV64_REG(BPF_REG_3, BPF_REG_0),
++      /* use bitwise AND to limit r3 range to [0, 64] */
++      BPF_ALU64_IMM(BPF_AND, BPF_REG_3, 64),
++      BPF_LD_MAP_FD(BPF_REG_1, 0),
++      BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
++      BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -64),
++      BPF_MOV64_IMM(BPF_REG_4, 0),
++      /* Call bpf_ringbuf_output(), it is one of a few helper functions with
++       * ARG_CONST_SIZE_OR_ZERO parameter allowed in unpriv mode.
++       * For unpriv this should signal an error, because memory at &fp[-64] is
++       * not initialized.
++       */
++      BPF_EMIT_CALL(BPF_FUNC_ringbuf_output),
+       BPF_EXIT_INSN(),
+       },
+-      .errstr = "invalid indirect read from stack R1 off -64+0 size 64",
+-      .result = REJECT,
+-      .prog_type = BPF_PROG_TYPE_TRACEPOINT,
++      .fixup_map_ringbuf = { 4 },
++      .errstr_unpriv = "invalid indirect read from stack R2 off -64+0 size 
64",
++      .result_unpriv = REJECT,
++      /* in privileged mode reads from uninitialized stack locations are 
permitted */
++      .result = ACCEPT,
+ },
+ {
+       "helper access to variable memory: stack, bitwise AND + JMP, wrong max",
+@@ -183,20 +194,31 @@
+ {
+       "helper access to variable memory: stack, JMP, no min check",
+       .insns = {
+-      BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, 8),
+-      BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
+-      BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64),
+-      BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, -128),
+-      BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -128),
+-      BPF_JMP_IMM(BPF_JGT, BPF_REG_2, 64, 3),
+-      BPF_MOV64_IMM(BPF_REG_3, 0),
+-      BPF_EMIT_CALL(BPF_FUNC_probe_read_kernel),
++      /* set max stack size */
++      BPF_ST_MEM(BPF_DW, BPF_REG_10, -128, 0),
++      /* set r3 to a random value */
++      BPF_EMIT_CALL(BPF_FUNC_get_prandom_u32),
++      BPF_MOV64_REG(BPF_REG_3, BPF_REG_0),
++      /* use JMP to limit r3 range to [0, 64] */
++      BPF_JMP_IMM(BPF_JGT, BPF_REG_3, 64, 6),
++      BPF_LD_MAP_FD(BPF_REG_1, 0),
++      BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
++      BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -64),
++      BPF_MOV64_IMM(BPF_REG_4, 0),
++      /* Call bpf_ringbuf_output(), it is one of a few helper functions with
++       * ARG_CONST_SIZE_OR_ZERO parameter allowed in unpriv mode.
++       * For unpriv this should signal an error, because memory at &fp[-64] is
++       * not initialized.
++       */
++      BPF_EMIT_CALL(BPF_FUNC_ringbuf_output),
+       BPF_MOV64_IMM(BPF_REG_0, 0),
+       BPF_EXIT_INSN(),
+       },
+-      .errstr = "invalid indirect read from stack R1 off -64+0 size 64",
+-      .result = REJECT,
+-      .prog_type = BPF_PROG_TYPE_TRACEPOINT,
++      .fixup_map_ringbuf = { 4 },
++      .errstr_unpriv = "invalid indirect read from stack R2 off -64+0 size 
64",
++      .result_unpriv = REJECT,
++      /* in privileged mode reads from uninitialized stack locations are 
permitted */
++      .result = ACCEPT,
+ },
+ {
+       "helper access to variable memory: stack, JMP (signed), no min check",
+@@ -564,29 +586,41 @@
+ {
+       "helper access to variable memory: 8 bytes leak",
+       .insns = {
+-      BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, 8),
+-      BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
+-      BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64),
++      /* set max stack size */
++      BPF_ST_MEM(BPF_DW, BPF_REG_10, -128, 0),
++      /* set r3 to a random value */
++      BPF_EMIT_CALL(BPF_FUNC_get_prandom_u32),
++      BPF_MOV64_REG(BPF_REG_3, BPF_REG_0),
++      BPF_LD_MAP_FD(BPF_REG_1, 0),
++      BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
++      BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -64),
+       BPF_MOV64_IMM(BPF_REG_0, 0),
+       BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -64),
+       BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -56),
+       BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -48),
+       BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -40),
++      /* Note: fp[-32] left uninitialized */
+       BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -24),
+       BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -16),
+       BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -8),
+-      BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_2, -128),
+-      BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_10, -128),
+-      BPF_ALU64_IMM(BPF_AND, BPF_REG_2, 63),
+-      BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 1),
+-      BPF_MOV64_IMM(BPF_REG_3, 0),
+-      BPF_EMIT_CALL(BPF_FUNC_probe_read_kernel),
+-      BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16),
++      /* Limit r3 range to [1, 64] */
++      BPF_ALU64_IMM(BPF_AND, BPF_REG_3, 63),
++      BPF_ALU64_IMM(BPF_ADD, BPF_REG_3, 1),
++      BPF_MOV64_IMM(BPF_REG_4, 0),
++      /* Call bpf_ringbuf_output(), it is one of a few helper functions with
++       * ARG_CONST_SIZE_OR_ZERO parameter allowed in unpriv mode.
++       * For unpriv this should signal an error, because memory region [1, 64]
++       * at &fp[-64] is not fully initialized.
++       */
++      BPF_EMIT_CALL(BPF_FUNC_ringbuf_output),
++      BPF_MOV64_IMM(BPF_REG_0, 0),
+       BPF_EXIT_INSN(),
+       },
+-      .errstr = "invalid indirect read from stack R1 off -64+32 size 64",
+-      .result = REJECT,
+-      .prog_type = BPF_PROG_TYPE_TRACEPOINT,
++      .fixup_map_ringbuf = { 3 },
++      .errstr_unpriv = "invalid indirect read from stack R2 off -64+32 size 
64",
++      .result_unpriv = REJECT,
++      /* in privileged mode reads from uninitialized stack locations are 
permitted */
++      .result = ACCEPT,
+ },
+ {
+       "helper access to variable memory: 8 bytes no leak (init memory)",
+diff --git a/tools/testing/selftests/bpf/verifier/int_ptr.c 
b/tools/testing/selftests/bpf/verifier/int_ptr.c
+index 070893fb29007..02d9e004260b3 100644
+--- a/tools/testing/selftests/bpf/verifier/int_ptr.c
++++ b/tools/testing/selftests/bpf/verifier/int_ptr.c
+@@ -54,12 +54,13 @@
+               /* bpf_strtoul() */
+               BPF_EMIT_CALL(BPF_FUNC_strtoul),
+ 
+-              BPF_MOV64_IMM(BPF_REG_0, 1),
++              BPF_MOV64_IMM(BPF_REG_0, 0),
+               BPF_EXIT_INSN(),
+       },
+-      .result = REJECT,
+-      .prog_type = BPF_PROG_TYPE_CGROUP_SYSCTL,
+-      .errstr = "invalid indirect read from stack R4 off -16+4 size 8",
++      .result_unpriv = REJECT,
++      .errstr_unpriv = "invalid indirect read from stack R4 off -16+4 size 8",
++      /* in privileged mode reads from uninitialized stack locations are 
permitted */
++      .result = ACCEPT,
+ },
+ {
+       "ARG_PTR_TO_LONG misaligned",
+diff --git a/tools/testing/selftests/bpf/verifier/search_pruning.c 
b/tools/testing/selftests/bpf/verifier/search_pruning.c
+index d63fd8991b03a..745d6b5842fd4 100644
+--- a/tools/testing/selftests/bpf/verifier/search_pruning.c
++++ b/tools/testing/selftests/bpf/verifier/search_pruning.c
+@@ -128,9 +128,10 @@
+               BPF_EXIT_INSN(),
+       },
+       .fixup_map_hash_8b = { 3 },
+-      .errstr = "invalid read from stack off -16+0 size 8",
+-      .result = REJECT,
+-      .prog_type = BPF_PROG_TYPE_TRACEPOINT,
++      .errstr_unpriv = "invalid read from stack off -16+0 size 8",
++      .result_unpriv = REJECT,
++      /* in privileged mode reads from uninitialized stack locations are 
permitted */
++      .result = ACCEPT,
+ },
+ {
+       "precision tracking for u32 spill/fill",
+@@ -258,6 +259,8 @@
+       BPF_EXIT_INSN(),
+       },
+       .flags = BPF_F_TEST_STATE_FREQ,
+-      .errstr = "invalid read from stack off -8+1 size 8",
+-      .result = REJECT,
++      .errstr_unpriv = "invalid read from stack off -8+1 size 8",
++      .result_unpriv = REJECT,
++      /* in privileged mode reads from uninitialized stack locations are 
permitted */
++      .result = ACCEPT,
+ },
+diff --git a/tools/testing/selftests/bpf/verifier/sock.c 
b/tools/testing/selftests/bpf/verifier/sock.c
+index d11d0b28be416..108dd3ee1edda 100644
+--- a/tools/testing/selftests/bpf/verifier/sock.c
++++ b/tools/testing/selftests/bpf/verifier/sock.c
+@@ -530,33 +530,6 @@
+       .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+       .result = ACCEPT,
+ },
+-{
+-      "sk_storage_get(map, skb->sk, &stack_value, 1): partially init 
stack_value",
+-      .insns = {
+-      BPF_MOV64_IMM(BPF_REG_2, 0),
+-      BPF_STX_MEM(BPF_W, BPF_REG_10, BPF_REG_2, -8),
+-      BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_1, offsetof(struct __sk_buff, 
sk)),
+-      BPF_JMP_IMM(BPF_JNE, BPF_REG_1, 0, 2),
+-      BPF_MOV64_IMM(BPF_REG_0, 0),
+-      BPF_EXIT_INSN(),
+-      BPF_EMIT_CALL(BPF_FUNC_sk_fullsock),
+-      BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 2),
+-      BPF_MOV64_IMM(BPF_REG_0, 0),
+-      BPF_EXIT_INSN(),
+-      BPF_MOV64_IMM(BPF_REG_4, 1),
+-      BPF_MOV64_REG(BPF_REG_3, BPF_REG_10),
+-      BPF_ALU64_IMM(BPF_ADD, BPF_REG_3, -8),
+-      BPF_MOV64_REG(BPF_REG_2, BPF_REG_0),
+-      BPF_LD_MAP_FD(BPF_REG_1, 0),
+-      BPF_EMIT_CALL(BPF_FUNC_sk_storage_get),
+-      BPF_MOV64_IMM(BPF_REG_0, 0),
+-      BPF_EXIT_INSN(),
+-      },
+-      .fixup_sk_storage_map = { 14 },
+-      .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+-      .result = REJECT,
+-      .errstr = "invalid indirect read from stack",
+-},
+ {
+       "bpf_map_lookup_elem(smap, &key)",
+       .insns = {
+diff --git a/tools/testing/selftests/bpf/verifier/spill_fill.c 
b/tools/testing/selftests/bpf/verifier/spill_fill.c
+index e23f07175e1bf..53286a7b49aab 100644
+--- a/tools/testing/selftests/bpf/verifier/spill_fill.c
++++ b/tools/testing/selftests/bpf/verifier/spill_fill.c
+@@ -171,9 +171,10 @@
+       BPF_MOV64_IMM(BPF_REG_0, 0),
+       BPF_EXIT_INSN(),
+       },
+-      .result = REJECT,
+-      .errstr = "invalid read from stack off -4+0 size 4",
+-      .prog_type = BPF_PROG_TYPE_SCHED_CLS,
++      .result_unpriv = REJECT,
++      .errstr_unpriv = "invalid read from stack off -4+0 size 4",
++      /* in privileged mode reads from uninitialized stack locations are 
permitted */
++      .result = ACCEPT,
+ },
+ {
+       "Spill a u32 const scalar.  Refill as u16.  Offset to skb->data",
+diff --git a/tools/testing/selftests/bpf/verifier/var_off.c 
b/tools/testing/selftests/bpf/verifier/var_off.c
+index d37f512fad16e..b183e26c03f10 100644
+--- a/tools/testing/selftests/bpf/verifier/var_off.c
++++ b/tools/testing/selftests/bpf/verifier/var_off.c
+@@ -212,31 +212,6 @@
+       .result = REJECT,
+       .prog_type = BPF_PROG_TYPE_LWT_IN,
+ },
+-{
+-      "indirect variable-offset stack access, max_off+size > max_initialized",
+-      .insns = {
+-      /* Fill only the second from top 8 bytes of the stack. */
+-      BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, 0),
+-      /* Get an unknown value. */
+-      BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, 0),
+-      /* Make it small and 4-byte aligned. */
+-      BPF_ALU64_IMM(BPF_AND, BPF_REG_2, 4),
+-      BPF_ALU64_IMM(BPF_SUB, BPF_REG_2, 16),
+-      /* Add it to fp.  We now have either fp-12 or fp-16, but we don't know
+-       * which. fp-12 size 8 is partially uninitialized stack.
+-       */
+-      BPF_ALU64_REG(BPF_ADD, BPF_REG_2, BPF_REG_10),
+-      /* Dereference it indirectly. */
+-      BPF_LD_MAP_FD(BPF_REG_1, 0),
+-      BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
+-      BPF_MOV64_IMM(BPF_REG_0, 0),
+-      BPF_EXIT_INSN(),
+-      },
+-      .fixup_map_hash_8b = { 5 },
+-      .errstr = "invalid indirect read from stack R2 var_off",
+-      .result = REJECT,
+-      .prog_type = BPF_PROG_TYPE_LWT_IN,
+-},
+ {
+       "indirect variable-offset stack access, min_off < min_initialized",
+       .insns = {
+@@ -289,33 +264,6 @@
+       .result = ACCEPT,
+       .prog_type = BPF_PROG_TYPE_CGROUP_SKB,
+ },
+-{
+-      "indirect variable-offset stack access, uninitialized",
+-      .insns = {
+-      BPF_MOV64_IMM(BPF_REG_2, 6),
+-      BPF_MOV64_IMM(BPF_REG_3, 28),
+-      /* Fill the top 16 bytes of the stack. */
+-      BPF_ST_MEM(BPF_W, BPF_REG_10, -16, 0),
+-      BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
+-      /* Get an unknown value. */
+-      BPF_LDX_MEM(BPF_W, BPF_REG_4, BPF_REG_1, 0),
+-      /* Make it small and 4-byte aligned. */
+-      BPF_ALU64_IMM(BPF_AND, BPF_REG_4, 4),
+-      BPF_ALU64_IMM(BPF_SUB, BPF_REG_4, 16),
+-      /* Add it to fp.  We now have either fp-12 or fp-16, we don't know
+-       * which, but either way it points to initialized stack.
+-       */
+-      BPF_ALU64_REG(BPF_ADD, BPF_REG_4, BPF_REG_10),
+-      BPF_MOV64_IMM(BPF_REG_5, 8),
+-      /* Dereference it indirectly. */
+-      BPF_EMIT_CALL(BPF_FUNC_getsockopt),
+-      BPF_MOV64_IMM(BPF_REG_0, 0),
+-      BPF_EXIT_INSN(),
+-      },
+-      .errstr = "invalid indirect read from stack R4 var_off",
+-      .result = REJECT,
+-      .prog_type = BPF_PROG_TYPE_SOCK_OPS,
+-},
+ {
+       "indirect variable-offset stack access, ok",
+       .insns = {
+diff --git a/tools/testing/selftests/wireguard/qemu/Makefile 
b/tools/testing/selftests/wireguard/qemu/Makefile
+index e95bd56b332f7..35856b11c1435 100644
+--- a/tools/testing/selftests/wireguard/qemu/Makefile
++++ b/tools/testing/selftests/wireguard/qemu/Makefile
+@@ -109,9 +109,9 @@ KERNEL_ARCH := x86_64
+ KERNEL_BZIMAGE := $(KERNEL_BUILD_PATH)/arch/x86/boot/bzImage
+ QEMU_VPORT_RESULT := virtio-serial-device
+ ifeq ($(HOST_ARCH),$(ARCH))
+-QEMU_MACHINE := -cpu host -machine microvm,accel=kvm,pit=off,pic=off,rtc=off 
-no-acpi
++QEMU_MACHINE := -cpu host -machine 
microvm,accel=kvm,pit=off,pic=off,rtc=off,acpi=off
+ else
+-QEMU_MACHINE := -cpu max -machine microvm -no-acpi
++QEMU_MACHINE := -cpu max -machine microvm,acpi=off
+ endif
+ else ifeq ($(ARCH),i686)
+ CHOST := i686-linux-musl
+@@ -120,9 +120,9 @@ KERNEL_ARCH := x86
+ KERNEL_BZIMAGE := $(KERNEL_BUILD_PATH)/arch/x86/boot/bzImage
+ QEMU_VPORT_RESULT := virtio-serial-device
+ ifeq ($(subst x86_64,i686,$(HOST_ARCH)),$(ARCH))
+-QEMU_MACHINE := -cpu host -machine microvm,accel=kvm,pit=off,pic=off,rtc=off 
-no-acpi
++QEMU_MACHINE := -cpu host -machine 
microvm,accel=kvm,pit=off,pic=off,rtc=off,acpi=off
+ else
+-QEMU_MACHINE := -cpu coreduo -machine microvm -no-acpi
++QEMU_MACHINE := -cpu coreduo -machine microvm,acpi=off
+ endif
+ else ifeq ($(ARCH),mips64)
+ CHOST := mips64-linux-musl

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