This bug was fixed in the package linux - 3.13.0-83.127
---------------
linux (3.13.0-83.127) trusty; urgency=low
[ Brad Figg ]
* Release Tracking Bug
- LP: #1555839
[ Florian Westphal ]
* SAUCE: [nf,v2] netfilter: x_tables: don't rely on well-behaving
userspace
- LP: #1555338
linux (3.13.0-82.126) trusty; urgency=low
[ Brad Figg ]
* Release Tracking Bug
- LP: #1554732
[ Upstream Kernel Changes ]
* Revert "drm/radeon: call hpd_irq_event on resume"
- LP: #1554608
* net: generic dev_disable_lro() stacked device handling
- LP: #1547680
linux (3.13.0-81.125) trusty; urgency=low
[ Luis Henriques ]
* Release Tracking Bug
- LP: #1552316
[ Upstream Kernel Changes ]
* Revert "firmware: dmi_scan: Fix UUID endianness for SMBIOS >= 2.6"
- LP: #1551419
* bcache: Fix a lockdep splat in an error path
- LP: #1551327
linux (3.13.0-80.124) trusty; urgency=low
[ Brad Figg ]
* Release Tracking Bug
- LP: #1548519
[ Andy Whitcroft ]
* [Debian] hv: hv_set_ifconfig -- convert to python3
- LP: #1506521
* [Debian] hv: hv_set_ifconfig -- switch to approved indentation
- LP: #1540586
* [Debian] hv: hv_set_ifconfig -- fix numerous parameter handling issues
- LP: #1540586
[ Dan Streetman ]
* SAUCE: nbd: ratelimit error msgs after socket close
- LP: #1505564
[ Upstream Kernel Changes ]
* Revert "workqueue: make sure delayed work run in local cpu"
- LP: #1546320
* [media] gspca: ov534/topro: prevent a division by 0
- LP: #1542497
* [media] media: dvb-core: Don't force CAN_INVERSION_AUTO in oneshot mode
- LP: #1542497
* tools lib traceevent: Fix output of %llu for 64 bit values read on 32
bit machines
- LP: #1542497
* KVM: x86: correctly print #AC in traces
- LP: #1542497
* drm/radeon: call hpd_irq_event on resume
- LP: #1542497
* xhci: refuse loading if nousb is used
- LP: #1542497
* arm64: Clear out any singlestep state on a ptrace detach operation
- LP: #1542497
* time: Avoid signed overflow in timekeeping_get_ns()
- LP: #1542497
* rtlwifi: fix memory leak for USB device
- LP: #1542497
* wlcore/wl12xx: spi: fix oops on firmware load
- LP: #1542497
* EDAC, mc_sysfs: Fix freeing bus' name
- LP: #1542497
* EDAC: Don't try to cancel workqueue when it's never setup
- LP: #1542497
* EDAC: Robustify workqueues destruction
- LP: #1542497
* powerpc: Make value-returning atomics fully ordered
- LP: #1542497
* powerpc: Make {cmp}xchg* and their atomic_ versions fully ordered
- LP: #1542497
* dm space map metadata: remove unused variable in brb_pop()
- LP: #1542497
* dm thin: fix race condition when destroying thin pool workqueue
- LP: #1542497
* futex: Drop refcount if requeue_pi() acquired the rtmutex
- LP: #1542497
* drm/radeon: clean up fujitsu quirks
- LP: #1542497
* mmc: sdio: Fix invalid vdd in voltage switch power cycle
- LP: #1542497
* mmc: sdhci: Fix sdhci_runtime_pm_bus_on/off()
- LP: #1542497
* udf: limit the maximum number of indirect extents in a row
- LP: #1542497
* nfs: Fix race in __update_open_stateid()
- LP: #1542497
* USB: cp210x: add ID for ELV Marble Sound Board 1
- LP: #1542497
* NFSv4: Don't perform cached access checks before we've OPENed the file
- LP: #1542497
* NFS: Fix attribute cache revalidation
- LP: #1542497
* posix-clock: Fix return code on the poll method's error path
- LP: #1542497
* rtlwifi: rtl8192de: Fix incorrect module parameter descriptions
- LP: #1542497
* rtlwifi: rtl8192se: Fix module parameter initialization
- LP: #1542497
* rtlwifi: rtl8192ce: Fix handling of module parameters
- LP: #1542497
* rtlwifi: rtl8192cu: Add missing parameter setup
- LP: #1542497
* bcache: fix a livelock when we cause a huge number of cache misses
- LP: #1542497
* bcache: Add a cond_resched() call to gc
- LP: #1542497
* bcache: clear BCACHE_DEV_UNLINK_DONE flag when attaching a backing
device
- LP: #1542497
* bcache: fix a leak in bch_cached_dev_run()
- LP: #1542497
* bcache: unregister reboot notifier if bcache fails to unregister device
- LP: #1542497
* bcache: add mutex lock for bch_is_open
- LP: #1542497
* bcache: allows use of register in udev to avoid "device_busy" error.
- LP: #1542497
* bcache: Change refill_dirty() to always scan entire disk if necessary
- LP: #1542497
* wlcore/wl12xx: spi: fix NULL pointer dereference (Oops)
- LP: #1542497
* Input: i8042 - add Fujitsu Lifebook U745 to the nomux list
- LP: #1542497
* libxfs: pack the agfl header structure so XFS_AGFL_SIZE is correct
- LP: #1542497
* x86/xen: don't reset vcpu_info on a cancelled suspend
- LP: #1542497
* udf: Prevent buffer overrun with multi-byte characters
- LP: #1542497
* udf: Check output buffer length when converting name to CS0
- LP: #1542497
* PCI: host: Mark PCIe/PCI (MSI) IRQ cascade handlers as IRQF_NO_THREAD
- LP: #1542497
* iwlwifi: update and fix 7265 series PCI IDs
- LP: #1542497
* locks: fix unlock when fcntl_setlk races with a close
- LP: #1542497
* ASoC: compress: Fix compress device direction check
- LP: #1542497
* dm snapshot: fix hung bios when copy error occurs
- LP: #1542497
* uml: fix hostfs mknod()
- LP: #1542497
* uml: flush stdout before forking
- LP: #1542497
* drm/nouveau/kms: take mode_config mutex in connector hotplug path
- LP: #1542497
* x86/boot: Double BOOT_HEAP_SIZE to 64KB
- LP: #1542497
* s390: fix normalization bug in exception table sorting
- LP: #1542497
* xfs: inode recovery readahead can race with inode buffer creation
- LP: #1542497
* clocksource/drivers/vt8500: Increase the minimum delta
- LP: #1542497
* Input: elantech - mark protocols v2 and v3 as semi-mt
- LP: #1542497
* x86/reboot/quirks: Add iMac10,1 to pci_reboot_dmi_table[]
- LP: #1542497
* ALSA: seq: Fix missing NULL check at remove_events ioctl
- LP: #1542497
* ALSA: seq: Fix race at timer setup and close
- LP: #1542497
* virtio_balloon: fix race by fill and leak
- LP: #1542497
* virtio_balloon: fix race between migration and ballooning
- LP: #1542497
* parisc: Fix __ARCH_SI_PREAMBLE_SIZE
- LP: #1542497
* scripts/recordmcount.pl: support data in text section on powerpc
- LP: #1542497
* powerpc/module: Handle R_PPC64_ENTRY relocations
- LP: #1542497
* ALSA: timer: Fix double unlink of active_list
- LP: #1542497
* dmaengine: dw: fix cyclic transfer setup
- LP: #1542497
* dmaengine: dw: fix cyclic transfer callbacks
- LP: #1542497
* mmc: mmci: fix an ages old detection error
- LP: #1542497
* ALSA: timer: Fix race among timer ioctls
- LP: #1542497
* sparc64: fix incorrect sign extension in sys_sparc64_personality
- LP: #1542497
* cifs: Ratelimit kernel log messages
- LP: #1542497
* cifs: fix race between call_async() and reconnect()
- LP: #1542497
* cifs_dbg() outputs an uninitialized buffer in cifs_readdir()
- LP: #1542497
* m32r: fix m32104ut_defconfig build fail
- LP: #1542497
* dma-debug: switch check from _text to _stext
- LP: #1542497
* scripts/bloat-o-meter: fix python3 syntax error
- LP: #1542497
* ocfs2/dlm: ignore cleaning the migration mle that is inuse
- LP: #1542497
* ALSA: timer: Harden slave timer list handling
- LP: #1542497
* mm: soft-offline: check return value in second __get_any_page() call
- LP: #1542497
* memcg: only free spare array when readers are done
- LP: #1542497
* panic: release stale console lock to always get the logbuf printed out
- LP: #1542497
* kernel/panic.c: turn off locks debug before releasing console lock
- LP: #1542497
* printk: do cond_resched() between lines while outputting to consoles
- LP: #1542497
* ALSA: hda - Fix bass pin fixup for ASUS N550JX
- LP: #1542497
* crypto: af_alg - Disallow bind/setkey/... after accept(2)
- LP: #1542497
* crypto: af_alg - Fix socket double-free when accept fails
- LP: #1542497
* crypto: af_alg - Add nokey compatibility path
- LP: #1542497
* crypto: hash - Add crypto_ahash_has_setkey
- LP: #1542497
* crypto: af_alg - Allow af_af_alg_release_parent to be called on nokey
path
- LP: #1542497
* crypto: af_alg - Forbid bind(2) when nokey child sockets are present
- LP: #1542497
* ALSA: hrtimer: Fix stall by hrtimer_cancel()
- LP: #1542497
* ALSA: pcm: Fix snd_pcm_hw_params struct copy in compat mode
- LP: #1542497
* ALSA: seq: Fix snd_seq_call_port_info_ioctl in compat mode
- LP: #1542497
* ALSA: control: Avoid kernel warnings from tlv ioctl with numid 0
- LP: #1542497
* crypto: algif_skcipher - Load TX SG list after waiting
- LP: #1542497
* crypto: crc32c - Fix crc32c soft dependency
- LP: #1542497
* IB/qib: fix mcast detach when qp not attached
- LP: #1542497
* iscsi-target: Fix potential dead-lock during node acl delete
- LP: #1542497
* ocfs2: NFS hangs in __ocfs2_cluster_lock due to race with
ocfs2_unblock_lock
- LP: #1542497
* [media] rc: allow rc modules to be loaded if rc-main is not a module
- LP: #1542497
* SCSI: initio: remove duplicate module device table
- LP: #1542497
* clk: xgene: Fix divider with non-zero shift value
- LP: #1542497
* ath9k_htc: check for underflow in ath9k_htc_rx_msg()
- LP: #1542497
* mtd: nand: fix ONFI parameter page layout
- LP: #1542497
* ALSA: fm801: propagate TUNER_ONLY bit when autodetected
- LP: #1542497
* pinctrl: bcm2835: Fix memory leak in error path
- LP: #1542497
* kconfig: return 'false' instead of 'no' in bool function
- LP: #1542497
* perf/x86: Fix filter_events() bug with event mappings
- LP: #1542497
* power: test_power: correctly handle empty writes
- LP: #1542497
* firmware: actually return NULL on failed request_firmware_nowait()
- LP: #1542497
* mmc: sd: limit SD card power limit according to cards capabilities
- LP: #1542497
* Btrfs: clean up an error code in btrfs_init_space_info()
- LP: #1542497
* batman-adv: Avoid recursive call_rcu for batadv_bla_claim
- LP: #1542497
* batman-adv: Avoid recursive call_rcu for batadv_nc_node
- LP: #1542497
* batman-adv: Drop immediate orig_node free function
- LP: #1542497
* printk: help pr_debug and pr_devel to optimize out arguments
- LP: #1542497
* mmc: debugfs: correct wrong voltage value
- LP: #1542497
* IB/mlx4: Initialize hop_limit when creating address handle
- LP: #1542497
* veth: don’t modify ip_summed; doing so treats packets with bad
checksums as good.
- LP: #1542497
* sctp: sctp should release assoc when sctp_make_abort_user return NULL
in sctp_close
- LP: #1542497
* connector: bump skb->users before callback invocation
- LP: #1542497
* unix: properly account for FDs passed over unix sockets
- LP: #1542497
* bridge: Only call /sbin/bridge-stp for the initial network namespace
- LP: #1542497
* net: sctp: prevent writes to cookie_hmac_alg from accessing invalid
memory
- LP: #1542497
* tcp_yeah: don't set ssthresh below 2
- LP: #1542497
* bonding: Prevent IPv6 link local address on enslaved devices
- LP: #1542497
* phonet: properly unshare skbs in phonet_rcv()
- LP: #1542497
* ipv6: update skb->csum when CE mark is propagated
- LP: #1542497
* team: Replace rcu_read_lock with a mutex in team_vlan_rx_kill_vid
- LP: #1542497
* Linux 3.13.11-ckt34
- LP: #1542497
* qeth: initialize net_device with carrier off
- LP: #1541907
* umount: Do not allow unmounting rootfs.
- LP: #1541313
* [media] usbvision fix overflow of interfaces array
- LP: #1546273
* [media] usbvision: fix leak of usb_dev on failure paths in
usbvision_probe()
- LP: #1546273
* [media] usbvision: fix crash on detecting device with invalid
configuration
- LP: #1546273
* tty: Fix unsafe ldisc reference via ioctl(TIOCGETD)
- LP: #1546273
* USB: serial: visor: fix crash on detecting device without write_urbs
- LP: #1546273
* ASN.1: Fix non-match detection failure on data overrun
- LP: #1546273
* iio: adis_buffer: Fix out-of-bounds memory access
- LP: #1546273
* x86/irq: Call chip->irq_set_affinity in proper context
- LP: #1546273
* usb: cdc-acm: handle unlinked urb in acm read callback
- LP: #1546273
* usb: cdc-acm: send zero packet for intel 7260 modem
- LP: #1546273
* cdc-acm:exclude Samsung phone 04e8:685d
- LP: #1546273
* usb: hub: do not clear BOS field during reset device
- LP: #1546273
* USB: cp210x: add ID for IAI USB to RS485 adaptor
- LP: #1546273
* USB: visor: fix null-deref at probe
- LP: #1546273
* USB: serial: option: Adding support for Telit LE922
- LP: #1546273
* ALSA: seq: Fix incorrect sanity check at snd_seq_oss_synth_cleanup()
- LP: #1546273
* ALSA: seq: Degrade the error message for too many opens
- LP: #1546273
* USB: serial: ftdi_sio: add support for Yaesu SCU-18 cable
- LP: #1546273
* USB: option: fix Cinterion AHxx enumeration
- LP: #1546273
* ALSA: compress: Disable GET_CODEC_CAPS ioctl for some architectures
- LP: #1546273
* ALSA: usb-audio: Fix TEAC UD-501/UD-503/NT-503 usb delay
- LP: #1546273
* arm64: errata: Add -mpc-relative-literal-loads to build flags
- LP: #1533009, #1546273
* SCSI: fix crashes in sd and sr runtime PM
- LP: #1546273
* n_tty: Fix unsafe reference to "other" ldisc
- LP: #1546273
* ALSA: dummy: Disable switching timer backend via sysfs
- LP: #1546273
* drm/vmwgfx: respect 'nomodeset'
- LP: #1546273
* x86/mm/pat: Avoid truncation when converting cpa->numpages to address
- LP: #1546273
* perf annotate browser: Fix behaviour of Shift-Tab with nothing focussed
- LP: #1546273
* powerpc/perf: Remove PPMU_HAS_SSLOT flag for Power8
- LP: #1546273
* Linux 3.13.11-ckt35
- LP: #1546273
* netfilter: bridge: don't use nf_bridge_info data to store mac header
- LP: #1463911
* netfilter: bridge: restore vlan tag when refragmenting
- LP: #1463911
* netfilter: bridge: forward IPv6 fragmented packets
- LP: #1463911
* netfilter: bridge: Use __in6_dev_get rather than in6_dev_get in
br_validate_ipv6
- LP: #1463911
* ALSA: usb-audio: avoid freeing umidi object twice
- LP: #1546177
- CVE-2016-2384
* vmstat: explicitly schedule per-cpu work on the CPU we need it to run
on
- LP: #1546320
-- Brad Figg <brad.f...@canonical.com> Thu, 10 Mar 2016 14:41:56 -0800
** Changed in: linux (Ubuntu Trusty)
Status: Fix Committed => Fix Released
** CVE added: http://www.cve.mitre.org/cgi-
bin/cvename.cgi?name=2016-2384
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https://bugs.launchpad.net/bugs/1551327
Title:
[regression] task bcache_register blocked
Status in linux package in Ubuntu:
Invalid
Status in linux source package in Trusty:
Fix Released
Bug description:
On boot with bcache-tools installed and bcache configured.
OK: 3.13.0-78.122
BAD: 3.13.0-80.124
BAD: 3.13.11-031311ckt35.201602161330
[ 492.780491] INFO: task bcache-register:1677 blocked for more than 120
seconds.
[ 492.780648] Not tainted 3.13.11-031311ckt35-generic #201602161330
[ 492.780782] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables
this message.
[ 492.780943] bcache-register D 0000000000000000 0 1677 1
0x00000004
[ 492.780951] ffff8800882a7d70 0000000000000286 ffff880002cb3000
0000000000013180
[ 492.780960] ffff8800882a7fd8 0000000000013180 ffff880002cb3000
ffffffffa00cd840
[ 492.780970] ffffffffa00cd844 ffff880002cb3000 00000000ffffffff
ffffffffa00cd848
[ 492.780980] Call Trace:
[ 492.780994] [<ffffffff8171a1f9>] schedule_preempt_disabled+0x29/0x70
[ 492.781003] [<ffffffff8171c065>] __mutex_lock_slowpath+0x135/0x1b0
[ 492.781015] [<ffffffff8171c0ff>] mutex_lock+0x1f/0x2f
[ 492.781040] [<ffffffffa00bb912>] register_bcache+0x52/0x1350 [bcache]
[ 492.781048] [<ffffffff81721a64>] ? __do_page_fault+0x204/0x560
[ 492.781058] [<ffffffff8117f80e>] ? do_mmap_pgoff+0x34e/0x3d0
[ 492.781067] [<ffffffff8135a9ef>] kobj_attr_store+0xf/0x20
[ 492.781075] [<ffffffff81231f18>] sysfs_write_file+0x128/0x1c0
[ 492.781084] [<ffffffff811bbb54>] vfs_write+0xb4/0x1f0
[ 492.781093] [<ffffffff811bc589>] SyS_write+0x49/0xa0
[ 492.781102] [<ffffffff8172641d>] system_call_fastpath+0x1a/0x1f
[ 612.779211] INFO: task bcache_writebac:532 blocked for more than 120
seconds.
[ 612.779309] Not tainted 3.13.11-031311ckt35-generic #201602161330
[ 612.779384] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables
this message.
[ 612.779495] bcache_writebac D 0000000000000000 0 532 2
0x00000000
[ 612.779508] ffff8800865d9eb8 0000000000000246 ffff880086608000
0000000000013180
[ 612.779521] ffff8800865d9fd8 0000000000013180 ffff880086608000
ffff880002899440
[ 612.779532] ffff880086790000 ffffffffa00b2840 0000000000000000
0000000000000000
[ 612.779543] Call Trace:
[ 612.779594] [<ffffffffa00b2840>] ? read_dirty+0x400/0x400 [bcache]
[ 612.779611] [<ffffffff81719ce9>] schedule+0x29/0x70
[ 612.779624] [<ffffffff8108a134>] kthread+0xa4/0xe0
[ 612.779633] [<ffffffff8108a090>] ? kthread_create_on_node+0x180/0x180
[ 612.779644] [<ffffffff81726368>] ret_from_fork+0x58/0x90
[ 612.779653] [<ffffffff8108a090>] ? kthread_create_on_node+0x180/0x180
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