syzbot

 sign-in | mailing list | source | docs
🐞 Open [985] ≡ Subsystems 🐞 Fixed [5236] 🐞 Invalid [12501] ⬇ Missing Backports [83] 📈 Kernel Health 📈 Bug Lifetimes 📈 Fuzzing 📈 Crashes 💬 Send us feedback

BUG: corrupted list in process_one_work

Status: closed as invalid on 2018/09/05 12:51
Subsystems: kernel
[Documentation on labels]
First crash: 2114d, last: 2102d
▶ ▼ Similar bugs (1)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
android-5-10 BUG: corrupted list in process_one_work C error done 8 8d09h 746d 2/2 upstream: reported C repro on 2022/04/10 06:05

Sample crash report:
list_add corruption. prev->next should be next (ffff8801236adc28), but was ffff88021fdb96a0. (prev=ffff88010939c488).
------------[ cut here ]------------
kernel BUG at lib/list_debug.c:28!
invalid opcode: 0000 [#1] SMP PTI
CPU: 1 PID: 14001 Comm: kworker/1:5 Not tainted 4.18.0-rc5+ #29
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue:            (null) (events)
RIP: 0010:__list_add_valid+0x43c/0x450 lib/list_debug.c:26
Code: 0c 00 00 00 00 00 00 41 c7 87 20 03 00 00 00 00 00 00 48 c7 c7 a7 fc dc 8a 31 c0 4c 89 e6 4c 89 ea 48 8b 4d c0 e8 24 ae 2b fd <0f> 0b 66 90 eb fe 0f 1f 40 00 66 2e 0f 1f 84 00 00 00 00 00 55 48 
RSP: 0018:ffff8801074afbf8 EFLAGS: 00010046
RAX: 0000000000000075 RBX: 0000000000000000 RCX: 6bcaa2ff1f60d900
RDX: 0000000000000000 RSI: aaaaaaaaaaaab000 RDI: ffffea000cbef440
RBP: ffff8801074afc60 R08: 0000000000480020 R09: 0000000000000002
R10: 0000000000000000 R11: ffffffff8675bad0 R12: ffff8801236adc28
R13: ffff88021fdb96a0 R14: 0000000000000000 R15: ffff8801394c6180
FS:  0000000000000000(0000) GS:ffff88021fd00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000000000b0 CR3: 000000010c066000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 __list_add include/linux/list.h:60 [inline]
 list_add_tail include/linux/list.h:93 [inline]
 list_move_tail include/linux/list.h:183 [inline]
 move_linked_works kernel/workqueue.c:1040 [inline]
 process_one_work+0xafd/0x2000 kernel/workqueue.c:2079
 worker_thread+0x1136/0x2490 kernel/workqueue.c:2296
 kthread+0x473/0x4b0 kernel/kthread.c:247
 ret_from_fork+0x35/0x40 arch/x86/entry/entry_64.S:415
Modules linked in:
Dumping ftrace buffer:
   (ftrace buffer empty)
---[ end trace b52a608a6da0b18c ]---
RIP: 0010:__list_add_valid+0x43c/0x450 lib/list_debug.c:26
Code: 0c 00 00 00 00 00 00 41 c7 87 20 03 00 00 00 00 00 00 48 c7 c7 a7 fc dc 8a 31 c0 4c 89 e6 4c 89 ea 48 8b 4d c0 e8 24 ae 2b fd <0f> 0b 66 90 eb fe 0f 1f 40 00 66 2e 0f 1f 84 00 00 00 00 00 55 48 
RSP: 0018:ffff8801074afbf8 EFLAGS: 00010046
RAX: 0000000000000075 RBX: 0000000000000000 RCX: 6bcaa2ff1f60d900
RDX: 0000000000000000 RSI: aaaaaaaaaaaab000 RDI: ffffea000cbef440
RBP: ffff8801074afc60 R08: 0000000000480020 R09: 0000000000000002
R10: 0000000000000000 R11: ffffffff8675bad0 R12: ffff8801236adc28
R13: ffff88021fdb96a0 R14: 0000000000000000 R15: ffff8801394c6180
FS:  0000000000000000(0000) GS:ffff88021fd00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000000000b0 CR3: 000000010c066000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400

Crashes (16):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2018/07/23 19:58 https://github.com/google/kmsan.git master d1c2a46a46f6 f69c5fcd .config console log report ci-upstream-kmsan-gce
2018/07/21 18:47 https://github.com/google/kmsan.git master d1c2a46a46f6 8cc079c3 .config console log report ci-upstream-kmsan-gce
2018/07/21 18:18 https://github.com/google/kmsan.git master d1c2a46a46f6 8cc079c3 .config console log report ci-upstream-kmsan-gce
2018/07/21 08:56 https://github.com/google/kmsan.git master d1c2a46a46f6 8cc079c3 .config console log report ci-upstream-kmsan-gce
2018/07/21 05:12 https://github.com/google/kmsan.git master d1c2a46a46f6 af255b09 .config console log report ci-upstream-kmsan-gce
2018/07/20 21:53 https://github.com/google/kmsan.git master d1c2a46a46f6 af255b09 .config console log report ci-upstream-kmsan-gce
2018/07/20 19:51 https://github.com/google/kmsan.git master d1c2a46a46f6 af255b09 .config console log report ci-upstream-kmsan-gce
2018/07/19 09:57 https://github.com/google/kmsan.git master 80ecacc456c1 49f35839 .config console log report ci-upstream-kmsan-gce
2018/07/19 09:28 https://github.com/google/kmsan.git master 80ecacc456c1 49f35839 .config console log report ci-upstream-kmsan-gce
2018/07/16 11:05 https://github.com/google/kmsan.git master 80ecacc456c1 92a49505 .config console log report ci-upstream-kmsan-gce
2018/07/16 08:26 https://github.com/google/kmsan.git master 80ecacc456c1 92a49505 .config console log report ci-upstream-kmsan-gce
2018/07/15 21:10 https://github.com/google/kmsan.git master 80ecacc456c1 92a49505 .config console log report ci-upstream-kmsan-gce
2018/07/13 23:16 https://github.com/google/kmsan.git master e74f81fe9c5d 92a49505 .config console log report ci-upstream-kmsan-gce
2018/07/13 07:37 https://github.com/google/kmsan.git master b64f7ec04e12 06c33b3a .config console log report ci-upstream-kmsan-gce
2018/07/12 04:24 https://github.com/google/kmsan.git master b64f7ec04e12 2e0e3130 .config console log report ci-upstream-kmsan-gce
2018/07/11 21:09 https://github.com/google/kmsan.git master b64f7ec04e12 2e0e3130 .config console log report ci-upstream-kmsan-gce
* Struck through repros no longer work on HEAD.