syzbot


WARNING in io_ring_exit_work

Status: auto-obsoleted due to no activity on 2023/10/27 08:42
Reported-by: syzbot+ec2b0cb78dce7ef062f6@syzkaller.appspotmail.com
First crash: 333d, last: 225d
Similar bugs (3)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-6.1 WARNING in io_ring_exit_work 5 233d 324d 0/3 auto-obsoleted due to no activity on 2023/10/19 11:52
upstream WARNING in io_ring_exit_work (2) io-uring 1 11d 7d14h 0/26 upstream: reported on 2024/02/22 09:35
upstream WARNING in io_ring_exit_work io-uring C done done 3550 306d 1081d 0/26 auto-obsoleted due to no activity on 2023/07/28 02:36

Sample crash report:
------------[ cut here ]------------
WARNING: CPU: 0 PID: 3726 at io_uring/io_uring.c:9696 io_ring_exit_work+0x304/0x1330
Modules linked in:
CPU: 0 PID: 3726 Comm: kworker/u4:8 Not tainted 5.15.119-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023
Workqueue: events_unbound io_ring_exit_work
RIP: 0010:io_ring_exit_work+0x304/0x1330 io_uring/io_uring.c:9696
Code: 78 23 e8 1f f8 7d fd 48 8b 7c 24 18 48 8b 74 24 10 e8 c0 02 22 06 48 85 c0 75 29 e8 06 f8 7d fd e9 fe fd ff ff e8 fc f7 7d fd <0f> 0b b8 70 17 00 00 48 89 44 24 10 eb cf e8 e9 f7 7d fd 0f 0b e9
RSP: 0000:ffffc9000508fac0 EFLAGS: 00010293
RAX: ffffffff840208a4 RBX: 0000000100018519 RCX: ffff8880766c3b80
RDX: 0000000000000000 RSI: fffffffffffffff6 RDI: 0000000000000000
RBP: ffffc9000508fc50 R08: ffffffff84020877 R09: ffffed10082db8c1
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: ffff8880416dc4a0 R14: 1ffff110082db894 R15: 0000000100018523
FS:  0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f919007b000 CR3: 000000001b859000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 000000000000d6de
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 process_one_work+0x8a1/0x10c0 kernel/workqueue.c:2307
 worker_thread+0xaca/0x1280 kernel/workqueue.c:2454
 kthread+0x3f6/0x4f0 kernel/kthread.c:319
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298
 </TASK>

Crashes (9):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2023/06/30 18:31 linux-5.15.y 4af60700a60c af3053d2 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in io_ring_exit_work
2023/06/24 22:47 linux-5.15.y f67653019430 79782afc .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in io_ring_exit_work
2023/05/09 20:40 linux-5.15.y 8a7f2a5c5aa1 30aa2a7e .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in io_ring_exit_work
2023/07/19 08:41 linux-5.15.y d54cfc420586 022df2bb .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in io_ring_exit_work
2023/07/17 05:49 linux-5.15.y d54cfc420586 35d9ecc5 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in io_ring_exit_work
2023/04/21 17:38 linux-5.15.y 3299fb36854f 2b32bd34 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in io_ring_exit_work
2023/04/18 10:39 linux-5.15.y 4fdad925aa1a 436577a9 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in io_ring_exit_work
2023/04/16 18:54 linux-5.15.y 4fdad925aa1a ec410564 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in io_ring_exit_work
2023/04/02 19:47 linux-5.15.y c957cbb87315 f325deb0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in io_ring_exit_work
* Struck through repros no longer work on HEAD.