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WARNING in io_ring_exit_work (2)

Status: upstream: reported on 2024/12/18 15:50
Reported-by: syzbot+83fce5ee5b6c9ab573b6@syzkaller.appspotmail.com
First crash: 147d, last: 19d
▶ ▼ Similar bugs (4)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-6.1 WARNING in io_ring_exit_work 5 673d 764d 0/3 auto-obsoleted due to no activity on 2023/10/19 11:52
upstream WARNING in io_ring_exit_work (2) io-uring 822 9h41m 447d 0/28 upstream: reported on 2024/02/22 09:35
linux-5.15 WARNING in io_ring_exit_work 9 665d 773d 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 747d 1521d 0/28 auto-obsoleted due to no activity on 2023/07/28 02:36

Sample crash report:
------------[ cut here ]------------
WARNING: CPU: 1 PID: 5101 at io_uring/io_uring.c:2907 io_ring_exit_work+0x31d/0x794 io_uring/io_uring.c:-1
Modules linked in:
CPU: 1 PID: 5101 Comm: kworker/u4:17 Not tainted 6.1.134-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
Workqueue: events_unbound io_ring_exit_work
RIP: 0010:io_ring_exit_work+0x31d/0x794 io_uring/io_uring.c:2907
Code: 78 23 e8 96 a9 da f6 48 8b 7c 24 30 48 8b 74 24 18 e8 07 18 0a 00 48 85 c0 75 3f e8 7d a9 da f6 e9 f9 fd ff ff e8 73 a9 da f6 <0f> 0b b8 70 17 00 00 48 89 44 24 18 eb cf 48 8b 4c 24 10 80 e1 07
RSP: 0018:ffffc900047dfae0 EFLAGS: 00010293
RAX: ffffffff8aafa32d RBX: 0000000100004844 RCX: ffff88802f21d940
RDX: 0000000000000000 RSI: fffffffffffffffc RDI: 0000000000000000
RBP: ffffc900047dfc50 R08: ffffffff8aafa300 R09: fffff520008fbf4d
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000100004848
R13: ffff888027bcc260 R14: 1ffff11004f7984c R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2cf0aff8 CR3: 000000004767f000 CR4: 00000000003526e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000480 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 process_one_work+0x917/0x1260 kernel/workqueue.c:2292
 worker_thread+0xa47/0x1200 kernel/workqueue.c:2439
 kthread+0x28d/0x320 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
 </TASK>

Crashes (27):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/04/25 09:18 linux-6.1.y 420102835862 e3715315 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in io_ring_exit_work
2025/04/01 08:57 linux-6.1.y 8e60a714ba3b 36d76a97 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in io_ring_exit_work
2025/03/29 23:07 linux-6.1.y 8e60a714ba3b d3999433 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in io_ring_exit_work
2025/03/28 21:44 linux-6.1.y 344a09659766 9a1a9e31 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in io_ring_exit_work
2025/03/24 03:35 linux-6.1.y 344a09659766 875573af .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in io_ring_exit_work
2025/03/22 02:58 linux-6.1.y 344a09659766 c6512ef7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in io_ring_exit_work
2025/03/21 06:31 linux-6.1.y 344a09659766 62330552 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in io_ring_exit_work
2025/03/21 06:31 linux-6.1.y 344a09659766 62330552 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in io_ring_exit_work
2025/03/13 01:05 linux-6.1.y 6ae7ac5c4251 1a5d9317 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in io_ring_exit_work
2025/03/12 05:19 linux-6.1.y 6ae7ac5c4251 ee70e6db .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in io_ring_exit_work
2025/03/10 19:30 linux-6.1.y 6ae7ac5c4251 16256247 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in io_ring_exit_work
2025/03/10 19:30 linux-6.1.y 6ae7ac5c4251 16256247 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in io_ring_exit_work
2025/03/10 19:30 linux-6.1.y 6ae7ac5c4251 16256247 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in io_ring_exit_work
2025/03/06 06:09 linux-6.1.y 3a8358583626 831e3629 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in io_ring_exit_work
2025/03/06 03:28 linux-6.1.y 3a8358583626 831e3629 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in io_ring_exit_work
2025/03/06 03:28 linux-6.1.y 3a8358583626 831e3629 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in io_ring_exit_work
2025/02/28 20:11 linux-6.1.y 3a8358583626 67cf5345 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in io_ring_exit_work
2025/02/15 00:09 linux-6.1.y 0cbb5f65e52f 1022af74 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in io_ring_exit_work
2025/02/15 00:09 linux-6.1.y 0cbb5f65e52f 1022af74 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in io_ring_exit_work
2025/02/07 01:59 linux-6.1.y 0cbb5f65e52f 8002dd28 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in io_ring_exit_work
2025/02/07 01:59 linux-6.1.y 0cbb5f65e52f 8002dd28 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in io_ring_exit_work
2025/02/05 00:37 linux-6.1.y 0cbb5f65e52f 5896748e .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in io_ring_exit_work
2024/12/19 16:43 linux-6.1.y 52f863f820fd 1432fc84 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in io_ring_exit_work
2025/02/17 19:48 linux-6.1.y 0cbb5f65e52f 4121cf9d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in io_ring_exit_work
2025/02/02 01:37 linux-6.1.y 0cbb5f65e52f 568559e4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in io_ring_exit_work
2024/12/18 18:26 linux-6.1.y 52f863f820fd a0626d3a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in io_ring_exit_work
2024/12/18 15:49 linux-6.1.y 52f863f820fd a0626d3a .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.