kernel BUG at mm/kmsan/kmsan.c:LINE! (5)

Status: closed as invalid on 2019/10/08 12:18
Subsystems: kernel
[Documentation on labels]
First crash: 2773d, last: 2522d
▶ ▼ Similar bugs (4)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream kernel BUG at mm/kmsan/kmsan.c:LINE! (3) net -1 syz, C 154 2896d 2970d 0/29 closed as invalid on 2018/09/13 16:32
upstream kernel BUG at mm/kmsan/kmsan.c:LINE! virt -1 syz, C 64521 2984d 3053d 0/29 closed as invalid on 2018/06/14 09:26
upstream kernel BUG at mm/kmsan/kmsan.c:LINE! (4) net -1 syz, C 542 2849d 2885d 0/29 closed as invalid on 2018/11/16 10:08
upstream kernel BUG at mm/kmsan/kmsan.c:LINE! (2) mm -1 syz, C 55 2972d 2984d 0/29 closed as invalid on 2018/06/27 10:08

Sample crash report:
------------[ cut here ]------------
kernel BUG at mm/kmsan/kmsan.c:693!
invalid opcode: 0000 [#1] SMP
CPU: 1 PID: 10290 Comm: syz-executor176 Not tainted 5.0.0+ #15
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:kmsan_internal_check_memory+0xb45/0xb80 mm/kmsan/kmsan.c:691
Code: 65 8b 34 25 04 90 03 00 65 48 8b 14 25 90 0d 04 00 48 c7 c7 4c 6c 81 8b 31 c0 e8 f6 fe 79 ff 0f 0b 0f 0b e8 cd 23 56 ff 0f 0b <0f> 0b e8 b4 d1 79 ff 85 c0 75 1f 65 8b 34 25 04 90 03 00 65 48 8b
RSP: 0018:ffff8881030efc50 EFLAGS: 00010046
RAX: 0000000000000002 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 000007ffffffffff RDI: ffff8881030ffd6c
RBP: ffff8881030efd00 R08: 00000000073d3900 R09: ffff88812fd39010
R10: 00000000000f000f R11: 0000000000000000 R12: 00000000a94000ac
R13: 0000000000000000 R14: 0000000000000206 R15: 0000000000000004
FS:  0000000000d2b880(0000) GS:ffff88812fd00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000004bf788 CR3: 0000000109b9e000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 kmsan_check_memory+0xd/0x10 mm/kmsan/kmsan.c:701
 kernel_wait4+0x4ba/0x5e0 kernel/exit.c:1671
 __do_sys_wait4 kernel/exit.c:1681 [inline]
 __se_sys_wait4+0x15f/0x2b0 kernel/exit.c:1677
 __x64_sys_wait4+0x56/0x70 kernel/exit.c:1677
 do_syscall_64+0xbc/0xf0 arch/x86/entry/common.c:291
 entry_SYSCALL_64_after_hwframe+0x63/0xe7
RIP: 0033:0x40106a
Code: c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 8b 05 6e 16 2d 00 85 c0 75 36 45 31 d2 48 63 d2 48 63 ff b8 3d 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 06 c3 0f 1f 44 00 00 48 c7 c2 d0 ff ff ff f7
RSP: 002b:00007ffde2a48b98 EFLAGS: 00000246 ORIG_RAX: 000000000000003d
RAX: ffffffffffffffda RBX: 000000000000283f RCX: 000000000040106a
RDX: 0000000040000001 RSI: 00007ffde2a48ba4 RDI: ffffffffffffffff
RBP: 000000000001b908 R08: 0000000000002832 R09: 0000000000d2b880
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000402020
R13: 00000000004020b0 R14: 0000000000000000 R15: 0000000000000000
Modules linked in:
---[ end trace 733d319bdb1da008 ]---
RIP: 0010:kmsan_internal_check_memory+0xb45/0xb80 mm/kmsan/kmsan.c:691
Code: 65 8b 34 25 04 90 03 00 65 48 8b 14 25 90 0d 04 00 48 c7 c7 4c 6c 81 8b 31 c0 e8 f6 fe 79 ff 0f 0b 0f 0b e8 cd 23 56 ff 0f 0b <0f> 0b e8 b4 d1 79 ff 85 c0 75 1f 65 8b 34 25 04 90 03 00 65 48 8b
RSP: 0018:ffff8881030efc50 EFLAGS: 00010046
RAX: 0000000000000002 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 000007ffffffffff RDI: ffff8881030ffd6c
RBP: ffff8881030efd00 R08: 00000000073d3900 R09: ffff88812fd39010
R10: 00000000000f000f R11: 0000000000000000 R12: 00000000a94000ac
R13: 0000000000000000 R14: 0000000000000206 R15: 0000000000000004
FS:  0000000000d2b880(0000) GS:ffff88812fd00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000004bf788 CR3: 0000000109b9e000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
------------[ cut here ]------------

Crashes (21):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2019/03/19 07:33 https://github.com/google/kmsan.git master 43cfd3b1484f 46264c32 .config console log report syz C ci-upstream-kmsan-gce
2019/09/20 00:31 https://github.com/google/kmsan.git master cebbfdbcf2b7 4d3ae0b7 .config console log report ci-upstream-kmsan-gce
2019/03/25 09:06 https://github.com/google/kmsan.git master c10a026b8dee 2c86e0a5 .config console log report ci-upstream-kmsan-gce
2019/03/25 00:26 https://github.com/google/kmsan.git master c10a026b8dee acbc5b7d .config console log report ci-upstream-kmsan-gce
2019/03/24 14:41 https://github.com/google/kmsan.git master c10a026b8dee acbc5b7d .config console log report ci-upstream-kmsan-gce
2019/03/24 04:46 https://github.com/google/kmsan.git master c10a026b8dee a2cef203 .config console log report ci-upstream-kmsan-gce
2019/03/23 22:28 https://github.com/google/kmsan.git master c10a026b8dee a2cef203 .config console log report ci-upstream-kmsan-gce
2019/03/23 14:07 https://github.com/google/kmsan.git master c10a026b8dee 3361bde5 .config console log report ci-upstream-kmsan-gce
2019/03/21 16:33 https://github.com/google/kmsan.git master c10a026b8dee dce6e62f .config console log report ci-upstream-kmsan-gce
2019/03/19 22:56 https://github.com/google/kmsan.git master 43cfd3b1484f e4549234 .config console log report ci-upstream-kmsan-gce
2019/03/19 06:52 https://github.com/google/kmsan.git master 43cfd3b1484f 46264c32 .config console log report ci-upstream-kmsan-gce
2019/03/14 22:08 https://github.com/google/kmsan.git master 9536b452bf7b d72db19b .config console log report ci-upstream-kmsan-gce
2019/03/07 16:02 https://github.com/google/kmsan.git master a695dc5e929e 8c085c5e .config console log report ci-upstream-kmsan-gce
2019/03/06 22:07 https://github.com/google/kmsan.git master a695dc5e929e 18215b8d .config console log report ci-upstream-kmsan-gce
2019/03/03 10:54 https://github.com/google/kmsan.git master fa1981bee40f 1c0e457a .config console log report ci-upstream-kmsan-gce
2019/02/16 11:16 https://github.com/google/kmsan.git master fa1981bee40f f42dee6d .config console log report ci-upstream-kmsan-gce
2019/01/24 14:35 https://github.com/google/kmsan.git master 02f2d5aea531 ce1ccf97 .config console log report ci-upstream-kmsan-gce
2019/01/22 22:36 https://github.com/google/kmsan.git master 02f2d5aea531 b1ff06b2 .config console log report ci-upstream-kmsan-gce
2019/01/20 18:39 https://github.com/google/kmsan.git master 02f2d5aea531 fd37a550 .config console log report ci-upstream-kmsan-gce
2019/01/15 03:42 https://github.com/google/kmsan.git master 02f2d5aea531 ebacf5cb .config console log report ci-upstream-kmsan-gce
2019/01/11 08:20 https://github.com/google/kmsan.git master 02f2d5aea531 80dde172 .config console log report ci-upstream-kmsan-gce
* Struck through repros no longer work on HEAD.