syzbot


WARNING in io_ring_exit_work (2)

Status: upstream: reported on 2024/02/22 09:35
Subsystems: io-uring
[Documentation on labels]
Reported-by: syzbot+557a278955ff3a4d3938@syzkaller.appspotmail.com
First crash: 409d, last: 1h50m
Discussions (4)
Title Replies (including bot) Last reply
[syzbot] Monthly io-uring report (Feb 2025) 0 (1) 2025/02/08 14:50
[syzbot] Monthly io-uring report (Dec 2024) 0 (1) 2024/12/26 09:01
[syzbot] Monthly io-uring report (Apr 2024) 0 (1) 2024/04/15 09:23
[syzbot] [io-uring?] WARNING in io_ring_exit_work (2) 0 (1) 2024/02/22 09:35
Similar bugs (4)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-6.1 WARNING in io_ring_exit_work (2) 26 1d14h 105d 0/3 upstream: reported on 2024/12/18 15:50
linux-6.1 WARNING in io_ring_exit_work 5 631d 722d 0/3 auto-obsoleted due to no activity on 2023/10/19 11:52
linux-5.15 WARNING in io_ring_exit_work 9 623d 731d 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 704d 1479d 0/28 auto-obsoleted due to no activity on 2023/07/28 02:36

Sample crash report:
------------[ cut here ]------------
WARNING: CPU: 1 PID: 54 at io_uring/io_uring.c:2918 io_ring_exit_work+0x454/0x910 io_uring/io_uring.c:2918
Modules linked in:
CPU: 1 UID: 0 PID: 54 Comm: kworker/u8:3 Not tainted 6.14.0-syzkaller-12508-g92b71befc349 #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
Workqueue: iou_exit io_ring_exit_work
RIP: 0010:io_ring_exit_work+0x454/0x910 io_uring/io_uring.c:2918
Code: 23 e8 20 a5 9a 00 48 8b 7c 24 30 48 8b 74 24 20 e8 51 61 08 0b 48 85 c0 75 3d e8 07 a5 9a 00 e9 00 fd ff ff e8 fd a4 9a 00 90 <0f> 0b 90 b8 70 17 00 00 48 89 44 24 20 eb cd 44 89 f9 80 e1 07 80
RSP: 0018:ffffc9000120f980 EFLAGS: 00010293
RAX: ffffffff8128b1a3 RBX: 0000000100004c71 RCX: ffff88801fea3c00
RDX: 0000000000000000 RSI: fffffffffffffffe RDI: 0000000000000000
RBP: ffffc9000120fb10 R08: ffffffff8128b176 R09: 1ffff92000241f20
R10: dffffc0000000000 R11: fffff52000241f21 R12: 0000000100004c6f
R13: ffff888059c6c310 R14: ffff888059c6c480 R15: ffff888059c6c000
FS:  0000000000000000(0000) GS:ffff888125099000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00002000003dd030 CR3: 00000000609c8000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 000000000000000e DR6: 00000000ffff0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 process_one_work kernel/workqueue.c:3238 [inline]
 process_scheduled_works+0xac3/0x18e0 kernel/workqueue.c:3319
 worker_thread+0x870/0xd50 kernel/workqueue.c:3400
 kthread+0x7b7/0x940 kernel/kthread.c:464
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:153
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>

Crashes (584):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/04/02 21:53 upstream 92b71befc349 c799dfdd .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in io_ring_exit_work
2025/04/02 10:36 upstream acc4d5ff0b61 c799dfdd .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root WARNING in io_ring_exit_work
2025/04/02 07:53 upstream acc4d5ff0b61 c799dfdd .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in io_ring_exit_work
2025/04/02 07:14 upstream acc4d5ff0b61 c799dfdd .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in io_ring_exit_work
2025/04/01 16:30 upstream 08733088b566 d863cf4b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in io_ring_exit_work
2025/04/01 12:35 upstream 08733088b566 36d76a97 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in io_ring_exit_work
2025/03/31 22:20 upstream 609706855d90 36d76a97 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in io_ring_exit_work
2025/03/31 15:28 upstream 4e82c87058f4 d3999433 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in io_ring_exit_work
2025/03/31 13:20 upstream 4e82c87058f4 d3999433 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in io_ring_exit_work
2025/03/30 23:45 upstream aa918db707fb d3999433 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in io_ring_exit_work
2025/03/30 07:37 upstream 7f2ff7b62617 d3999433 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in io_ring_exit_work
2025/03/29 19:45 upstream 7d06015d936c d3999433 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in io_ring_exit_work
2025/03/29 18:33 upstream 7d06015d936c d3999433 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in io_ring_exit_work
2025/03/29 17:12 upstream 7d06015d936c d3999433 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in io_ring_exit_work
2025/03/29 02:44 upstream eff5f16bfd87 cf25e2c2 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in io_ring_exit_work
2025/03/28 20:13 upstream acb4f33713b9 49900278 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in io_ring_exit_work
2025/03/28 18:40 upstream acb4f33713b9 49900278 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in io_ring_exit_work
2025/03/28 12:11 upstream acb4f33713b9 49900278 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in io_ring_exit_work
2025/03/28 10:51 upstream acb4f33713b9 6c09fb82 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in io_ring_exit_work
2025/03/28 09:22 upstream acb4f33713b9 6c09fb82 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in io_ring_exit_work
2025/03/27 08:10 upstream 1e1ba8d23dae 20510e88 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in io_ring_exit_work
2025/03/27 07:06 upstream 1e1ba8d23dae 20510e88 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in io_ring_exit_work
2025/03/27 05:36 upstream 1e1ba8d23dae 20510e88 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in io_ring_exit_work
2025/03/27 01:28 upstream 2df0c02dab82 89d30d73 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root WARNING in io_ring_exit_work
2025/03/26 23:53 upstream 2df0c02dab82 89d30d73 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in io_ring_exit_work
2025/03/26 21:02 upstream 2df0c02dab82 89d30d73 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in io_ring_exit_work
2025/03/26 17:55 upstream 2df0c02dab82 89d30d73 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in io_ring_exit_work
2025/03/26 06:16 upstream 2df0c02dab82 89d30d73 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root WARNING in io_ring_exit_work
2025/03/25 23:00 upstream 2df0c02dab82 89d30d73 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root WARNING in io_ring_exit_work
2025/03/25 21:46 upstream 2df0c02dab82 89d30d73 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in io_ring_exit_work
2025/03/25 19:09 upstream 2df0c02dab82 875573af .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in io_ring_exit_work
2025/03/25 07:05 upstream 3ba7dfb8da62 875573af .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in io_ring_exit_work
2025/03/25 05:45 upstream 3ba7dfb8da62 875573af .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in io_ring_exit_work
2025/03/24 16:25 upstream 38fec10eb60d 875573af .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in io_ring_exit_work
2025/03/24 02:56 upstream 586de92313fc 875573af .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root WARNING in io_ring_exit_work
2025/03/24 01:38 upstream 586de92313fc 875573af .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in io_ring_exit_work
2025/03/23 20:14 upstream 586de92313fc 4e8d3850 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in io_ring_exit_work
2025/03/23 11:04 upstream 586de92313fc 4e8d3850 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root WARNING in io_ring_exit_work
2025/03/23 02:25 upstream 183601b78a9b c6512ef7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in io_ring_exit_work
2025/03/23 01:20 upstream 183601b78a9b c6512ef7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in io_ring_exit_work
2025/03/22 07:50 upstream 88d324e69ea9 c6512ef7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in io_ring_exit_work
2025/03/22 05:55 upstream 88d324e69ea9 c6512ef7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in io_ring_exit_work
2025/03/22 05:55 upstream 88d324e69ea9 c6512ef7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in io_ring_exit_work
2025/03/22 00:40 upstream 88d324e69ea9 62330552 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root WARNING in io_ring_exit_work
2025/03/21 22:56 upstream d07de43e3f05 62330552 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in io_ring_exit_work
2025/01/12 03:54 upstream b62cef9a5c67 6dbc6a9b .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto WARNING in io_ring_exit_work
2025/03/29 20:55 upstream 7d06015d936c d3999433 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 WARNING in io_ring_exit_work
2025/03/22 19:19 upstream 88d324e69ea9 c6512ef7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 WARNING in io_ring_exit_work
2025/03/06 09:37 upstream 848e07631744 831e3629 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in io_ring_exit_work
2025/03/23 09:11 upstream 183601b78a9b 4e8d3850 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in io_ring_exit_work
2025/02/25 10:55 upstream d082ecbc71e9 d34966d1 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm64-compat WARNING in io_ring_exit_work
2025/02/19 18:29 linux-next e5d3fd687aac cbd8edab .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in io_ring_exit_work
2024/02/18 09:25 linux-next 2c3b09aac00d 578f7538 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in io_ring_exit_work
2025/03/29 01:56 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci a2392f333575 cf25e2c2 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in io_ring_exit_work
2025/03/28 13:52 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci a2392f333575 49900278 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in io_ring_exit_work
2025/03/27 20:41 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci a2392f333575 6c09fb82 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in io_ring_exit_work
* Struck through repros no longer work on HEAD.