syzbot


WARNING in io_ring_exit_work

Status: auto-obsoleted due to no activity on 2023/10/19 11:52
Reported-by: syzbot+35442b6e5a1cb852f200@syzkaller.appspotmail.com
First crash: 385d, last: 294d
Similar bugs (3)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream WARNING in io_ring_exit_work (2) io-uring 2 16d 68d 0/26 upstream: reported on 2024/02/22 09:35
linux-5.15 WARNING in io_ring_exit_work 9 286d 394d 0/3 auto-obsoleted due to no activity on 2023/10/27 08:42
upstream WARNING in io_ring_exit_work io-uring C done done 3550 367d 1142d 0/26 auto-obsoleted due to no activity on 2023/07/28 02:36

Sample crash report:
------------[ cut here ]------------
WARNING: CPU: 0 PID: 5621 at io_uring/io_uring.c:2747 io_ring_exit_work+0x31d/0x794
Modules linked in:
CPU: 0 PID: 5621 Comm: kworker/u4:26 Not tainted 6.1.38-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/03/2023
Workqueue: events_unbound io_ring_exit_work
RIP: 0010:io_ring_exit_work+0x31d/0x794 io_uring/io_uring.c:2747
Code: 78 23 e8 89 f0 06 f7 48 8b 7c 24 30 48 8b 74 24 18 e8 5a c2 09 00 48 85 c0 75 3f e8 70 f0 06 f7 e9 f9 fd ff ff e8 66 f0 06 f7 <0f> 0b b8 70 17 00 00 48 89 44 24 18 eb cf 48 8b 4c 24 10 80 e1 07
RSP: 0018:ffffc9000c3c7ae0 EFLAGS: 00010293
RAX: ffffffff8a82eada RBX: 000000010000d179 RCX: ffff8880500d1dc0
RDX: 0000000000000000 RSI: fffffffffffffff0 RDI: 0000000000000000
RBP: ffffc9000c3c7c50 R08: ffffffff8a82eaad R09: fffff52001878f4d
R10: 0000000000000000 R11: dffffc0000000001 R12: 000000010000d189
R13: ffff8880410d4260 R14: 1ffff1100821a84c R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c00e2a3010 CR3: 000000007d290000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 process_one_work+0x8aa/0x11f0 kernel/workqueue.c:2289
 worker_thread+0xa5f/0x1210 kernel/workqueue.c:2436
 kthread+0x26e/0x300 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>

Crashes (5):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2023/07/11 11:52 linux-6.1.y 61fd484b2cf6 f8780940 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in io_ring_exit_work
2023/05/23 06:28 linux-6.1.y fa74641fb6b9 4bce1a3e .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in io_ring_exit_work
2023/05/14 18:37 linux-6.1.y bf4ad6fa4e53 2b9ba477 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in io_ring_exit_work
2023/04/11 17:32 linux-6.1.y 543aff194ab6 49faf98d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in io_ring_exit_work
2023/05/14 18:32 linux-6.1.y bf4ad6fa4e53 2b9ba477 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in io_ring_exit_work
* Struck through repros no longer work on HEAD.