Control: tags -1 + confirmed upstream fixed-upstream pending Hi Laurent,
On Sun, Sep 26, 2021 at 01:09:36PM +0200, Laurent Bonnaud wrote: > Package: src:linux > Version: 5.14.6-2 > Severity: important > > > Dear Maintainer, > > on a system that is used as a Samba server, the kernel logs are spammed by > WARNINGs such as this one: > > Sep 26 07:42:40 hostname kernel: ------------[ cut here ]------------ > Sep 26 07:42:40 hostname kernel: Buffer overflow detected (8 < 192)! > Sep 26 07:42:40 hostname kernel: WARNING: CPU: 1 PID: 561 at > include/linux/thread_info.h:200 ethtool_rxnfc_copy_to_user+0x2b/0xb0 > Sep 26 07:42:40 hostname kernel: Modules linked in: ipmi_ssif intel_rapl_msr > intel_rapl_common skx_edac nfit libnvdimm x86_pkg_temp_thermal > intel_powerclamp quota_v2 quota_tree coretemp nls_ascii nls_cp437 vfat fat > ghash_clmulni_intel m> > Sep 26 07:42:40 hostname kernel: CPU: 1 PID: 561 Comm: nmbd Not tainted > 5.14.0-1-amd64 #1 Debian 5.14.6-2 > Sep 26 07:42:40 hostname kernel: Hardware name: Dell Inc. PowerEdge > R540/0NJK2F, BIOS 2.12.2 07/09/2021 > Sep 26 07:42:40 hostname kernel: RIP: > 0010:ethtool_rxnfc_copy_to_user+0x2b/0xb0 > Sep 26 07:42:40 hostname kernel: Code: 1f 44 00 00 41 55 65 48 8b 04 25 c0 7b > 01 00 41 54 55 53 f6 40 10 02 75 23 be 08 00 00 00 48 c7 c7 28 16 30 a7 e8 64 > 4c 14 00 <0f> 0b 41 bc f2 ff ff ff 5b 44 89 e0 5d 41 5c 41 5d c3 48 89 fb 49 > Sep 26 07:42:40 hostname kernel: RSP: 0018:ffffab4680cefbf8 EFLAGS: 00010282 > Sep 26 07:42:40 hostname kernel: RAX: 0000000000000000 RBX: ffffffffc06204e0 > RCX: ffff94bfe0098888 > Sep 26 07:42:40 hostname kernel: RDX: 00000000ffffffd8 RSI: 0000000000000027 > RDI: ffff94bfe0098880 > Sep 26 07:42:40 hostname kernel: RBP: ffff94b8d11c0000 R08: 0000000000000000 > R09: ffffab4680cefa20 > Sep 26 07:42:40 hostname kernel: R10: ffffab4680cefa18 R11: ffffffffa78d3588 > R12: 0000000000000000 > Sep 26 07:42:40 hostname kernel: R13: 00007fff9b14aa20 R14: 0000000000000000 > R15: ffffab4680cefc28 > Sep 26 07:42:40 hostname kernel: FS: 00007f59e1dcfa40(0000) > GS:ffff94bfe0080000(0000) knlGS:0000000000000000 > Sep 26 07:42:40 hostname kernel: CS: 0010 DS: 0000 ES: 0000 CR0: > 0000000080050033 > Sep 26 07:42:40 hostname kernel: CR2: 0000557f575974d8 CR3: 0000000109a38002 > CR4: 00000000007706e0 > Sep 26 07:42:40 hostname kernel: DR0: 0000000000000000 DR1: 0000000000000000 > DR2: 0000000000000000 > Sep 26 07:42:40 hostname kernel: DR3: 0000000000000000 DR6: 00000000fffe0ff0 > DR7: 0000000000000400 > Sep 26 07:42:40 hostname kernel: PKRU: 55555554 > Sep 26 07:42:40 hostname kernel: Call Trace: > Sep 26 07:42:40 hostname kernel: ethtool_get_rxnfc+0xcb/0x1b0 > Sep 26 07:42:40 hostname kernel: dev_ethtool+0xb4b/0x28f0 > Sep 26 07:42:40 hostname kernel: ? sk_prot_alloc+0x30/0x120 > Sep 26 07:42:40 hostname kernel: ? tomoyo_init_request_info+0x8f/0xb0 > Sep 26 07:42:40 hostname kernel: ? tomoyo_path_number_perm+0x66/0x1d0 > Sep 26 07:42:40 hostname kernel: dev_ioctl+0x156/0x480 > Sep 26 07:42:40 hostname kernel: sock_do_ioctl+0x9b/0x130 > Sep 26 07:42:40 hostname kernel: sock_ioctl+0x23a/0x320 > Sep 26 07:42:40 hostname kernel: __x64_sys_ioctl+0x83/0xb0 > Sep 26 07:42:40 hostname kernel: do_syscall_64+0x3b/0xc0 > Sep 26 07:42:40 hostname kernel: entry_SYSCALL_64_after_hwframe+0x44/0xae > Sep 26 07:42:40 hostname kernel: RIP: 0033:0x7f59e573bcc7 > Sep 26 07:42:40 hostname kernel: Code: 00 00 00 48 8b 05 c9 91 0c 00 64 c7 00 > 26 00 00 00 48 c7 c0 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 b8 10 00 00 > 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 99 91 0c 00 f7 d8 64 89 01 48 > Sep 26 07:42:40 hostname kernel: RSP: 002b:00007fff9b14a9b8 EFLAGS: 00000246 > ORIG_RAX: 0000000000000010 > Sep 26 07:42:40 hostname kernel: RAX: ffffffffffffffda RBX: 0000557f575950f0 > RCX: 00007f59e573bcc7 > Sep 26 07:42:40 hostname kernel: RDX: 00007fff9b14a9f0 RSI: 0000000000008946 > RDI: 000000000000000f > Sep 26 07:42:40 hostname kernel: RBP: 000000000000000f R08: 0000000000000000 > R09: 003166307331706e > Sep 26 07:42:40 hostname kernel: R10: 000000000000000d R11: 0000000000000246 > R12: 0000557f575952a0 > Sep 26 07:42:40 hostname kernel: R13: 00007fff9b14a9f0 R14: 0000557f575970d0 > R15: 0000557f57597174 > Sep 26 07:42:40 hostname kernel: ---[ end trace 387ad7d8b4db28d7 ]--- > Sep 26 07:42:40 hostname kernel: ------------[ cut here ]------------ I believe this is fixed by https://salsa.debian.org/kernel-team/linux/-/commit/b7f5082c34ea43622ebd9cd42f5fdd7b5ed49761 pending for the next upload. Regards, Salvatore
