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WARNING in io_ring_exit_work

Status: auto-obsoleted due to no activity on 2023/07/28 02:36
Subsystems: io-uring
[Documentation on labels]
Reported-by: syzbot+00e15cda746c5bc70e24@syzkaller.appspotmail.com
First crash: 1575d, last: 797d
Cause bisection: introduced by (bisect log) :
commit 6c2450ae55656f6b0370bfd4cb52ec8a4ecd0916
Author: Pavel Begunkov <asml.silence@gmail.com>
Date: Tue Feb 23 12:40:22 2021 +0000

  io_uring: allocate memory for overflowed CQEs

Crash: WARNING: ODEBUG bug in netdev_run_todo (log)
Repro: C syz .config
  
Fix bisection: fixed by (bisect log) :
commit d808459b2e31bd5123a14258a7a529995db974c8
Author: Helge Deller <deller@gmx.de>
Date: Thu Feb 16 08:09:38 2023 +0000

  io_uring: Adjust mapping wrt architecture aliasing requirements

  
▶ ▼ Discussions (3)
Title Replies (including bot) Last reply
[syzbot] WARNING in io_ring_exit_work 1 (6) 2023/05/29 07:58
[syzbot] Monthly io-uring report (Apr 2023) 0 (1) 2023/04/27 17:19
[syzbot] Monthly io-uring report 9 (10) 2023/03/27 20:21
▶ ▼ Similar bugs (5)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-6.1 WARNING in io_ring_exit_work (2) 27 70d 198d 0/3 auto-obsoleted due to no activity on 2025/07/04 09:19
linux-6.1 WARNING in io_ring_exit_work 5 724d 815d 0/3 auto-obsoleted due to no activity on 2023/10/19 11:52
upstream WARNING in io_ring_exit_work (2) io-uring 1362 2h02m 498d 0/29 upstream: reported on 2024/02/22 09:35
linux-6.6 WARNING in io_ring_exit_work 3 2d23h 16d 0/2 upstream: reported on 2025/06/18 00:00
linux-5.15 WARNING in io_ring_exit_work 9 716d 823d 0/3 auto-obsoleted due to no activity on 2023/10/27 08:42
▶ ▼ Last patch testing requests (11)
Created Duration User Patch Repo Result
2023/07/08 07:16 35m retest repro linux-next OK log
2023/07/08 07:16 34m retest repro linux-next OK log
2023/07/08 07:16 35m retest repro linux-next OK log
2023/07/08 06:26 33m retest repro upstream OK log
2023/07/08 05:01 28m retest repro upstream OK log
2023/07/08 05:01 20m retest repro upstream OK log
2023/07/08 05:01 32m retest repro upstream OK log
2023/07/08 02:41 24m retest repro git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci OK log
2023/07/08 02:41 23m retest repro git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci OK log
2023/07/08 02:41 26m retest repro git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci OK log
2021/08/06 09:20 18m asml.silence@gmail.com git://git.kernel.dk/linux-block io_uring-5.14 OK

Sample crash report:
------------[ cut here ]------------
WARNING: CPU: 1 PID: 1197 at io_uring/io_uring.c:2999 io_ring_exit_work+0xfb6/0x1370 io_uring/io_uring.c:2999
Modules linked in:
CPU: 1 PID: 1197 Comm: kworker/u4:5 Not tainted 6.3.0-rc4-syzkaller-00039-gffe78bbd5121 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023
Workqueue: events_unbound io_ring_exit_work
RIP: 0010:io_ring_exit_work+0xfb6/0x1370 io_uring/io_uring.c:2999
Code: 18 01 00 00 65 48 2b 04 25 28 00 00 00 0f 85 5d 03 00 00 48 81 c4 20 01 00 00 5b 5d 41 5c 41 5d 41 5e 41 5f c3 e8 5a d7 7b fd <0f> 0b 41 bc 70 17 00 00 e9 19 f3 ff ff e8 48 d7 7b fd 48 89 ef e8
RSP: 0018:ffffc900058afbc0 EFLAGS: 00010293
RAX: 0000000000000000 RBX: dffffc0000000000 RCX: 0000000000000000
RDX: ffff888021088000 RSI: ffffffff840700f6 RDI: 0000000000000007
RBP: fffffffffffffffe R08: 0000000000000007 R09: 0000000000000000
R10: fffffffffffffffe R11: 0000000000094001 R12: 0000000000000005
R13: ffff8880240e6838 R14: ffff8880240e6000 R15: ffff8880240e63c8
FS:  0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000564b76e8fc20 CR3: 000000000c571000 CR4: 0000000000350ee0
Call Trace:
 <TASK>
 process_one_work+0x991/0x15c0 kernel/workqueue.c:2390
 worker_thread+0x669/0x1090 kernel/workqueue.c:2537
 kthread+0x2e8/0x3a0 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
 </TASK>

Crashes (3550):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2023/03/30 07:09 upstream ffe78bbd5121 f325deb0 .config console log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root WARNING in io_ring_exit_work
2023/01/26 13:44 upstream 7c46948a6e9c 9dfcf09c .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root WARNING in io_ring_exit_work
2023/01/15 15:01 upstream 7c6984405241 a63719e7 .config console log report syz C ci-upstream-kasan-gce WARNING in io_ring_exit_work
2022/11/20 00:38 upstream fe24a97cf254 5bb70014 .config console log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root WARNING in io_ring_exit_work
2022/08/13 12:37 upstream 7ebfc85e2cd7 8dfcaa3d .config console log report syz C ci-upstream-kasan-gce-root WARNING in io_ring_exit_work
2022/09/26 07:07 linux-next aaa11ce2ffc8 0042f2b4 .config console log report syz C ci-upstream-linux-next-kasan-gce-root WARNING in io_ring_exit_work
2022/07/16 14:51 linux-next cb71b93c2dc3 95cb00d1 .config console log report syz C ci-upstream-linux-next-kasan-gce-root WARNING in io_ring_exit_work
2021/08/06 07:02 linux-next 8d4b477da1a8 d2d6e680 .config console log report syz C ci-upstream-linux-next-kasan-gce-root WARNING in io_ring_exit_work
2023/01/18 03:21 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 9598c377d828 aedf5331 .config console log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in io_ring_exit_work
2023/01/15 10:31 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 9598c377d828 a63719e7 .config console log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in io_ring_exit_work
2023/01/08 13:32 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci ae87308093bc 1dac8c7a .config console log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in io_ring_exit_work
2023/04/27 11:11 upstream 5c7ecada25d2 19a3dabe .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in io_ring_exit_work
2023/04/26 14:48 upstream 0cfd8703e7da 19a3dabe .config console log report info ci-qemu-upstream WARNING in io_ring_exit_work
2023/04/25 12:56 upstream 173ea743bf7a 65320f8e .config console log report info ci-upstream-kasan-gce-smack-root WARNING in io_ring_exit_work
2023/04/25 11:25 upstream 173ea743bf7a 65320f8e .config console log report info ci-upstream-kasan-gce-smack-root WARNING in io_ring_exit_work
2023/04/24 22:33 upstream 1a0beef98b58 fdc18293 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in io_ring_exit_work
2023/04/24 14:25 upstream 457391b03803 fdc18293 .config console log report info ci-upstream-kasan-gce-smack-root WARNING in io_ring_exit_work
2023/04/24 10:18 upstream 457391b03803 c778c7f4 .config console log report info ci-upstream-kasan-gce-selinux-root WARNING in io_ring_exit_work
2023/04/23 15:48 upstream 622322f53c6d 2b32bd34 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in io_ring_exit_work
2023/04/23 10:41 upstream 622322f53c6d 2b32bd34 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in io_ring_exit_work
2023/04/21 01:20 upstream b7bc77e2f2c7 2b32bd34 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in io_ring_exit_work
2023/04/20 22:56 upstream cb0856346a60 2b32bd34 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root WARNING in io_ring_exit_work
2023/04/20 20:31 upstream cb0856346a60 2b32bd34 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root WARNING in io_ring_exit_work
2023/04/20 17:37 upstream cb0856346a60 2b32bd34 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root WARNING in io_ring_exit_work
2023/04/20 09:11 upstream cb0856346a60 a219f34e .config console log report info ci-upstream-kasan-gce-selinux-root WARNING in io_ring_exit_work
2023/04/20 03:59 upstream 789b4a41c247 a219f34e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root WARNING in io_ring_exit_work
2023/04/19 05:46 upstream af67688dca57 d931e9f0 .config console log report info ci2-upstream-fs WARNING in io_ring_exit_work
2023/04/18 16:18 upstream 6a8f57ae2eb0 d931e9f0 .config console log report info ci-upstream-kasan-gce-selinux-root WARNING in io_ring_exit_work
2023/04/18 13:24 upstream 6a8f57ae2eb0 436577a9 .config console log report info ci-upstream-kasan-gce-selinux-root WARNING in io_ring_exit_work
2023/04/18 10:00 upstream 6a8f57ae2eb0 436577a9 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in io_ring_exit_work
2023/04/18 06:10 upstream 6a8f57ae2eb0 436577a9 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in io_ring_exit_work
2023/04/17 18:43 upstream 6a8f57ae2eb0 c6ec7083 .config console log report info ci-upstream-kasan-gce-root WARNING in io_ring_exit_work
2023/04/17 17:35 upstream 6a8f57ae2eb0 c6ec7083 .config console log report info ci-upstream-kasan-gce WARNING in io_ring_exit_work
2023/04/17 09:41 upstream 6a8f57ae2eb0 c6ec7083 .config console log report info ci-upstream-kasan-gce-smack-root WARNING in io_ring_exit_work
2023/04/16 07:57 upstream a7a55e27ad72 ec410564 .config console log report info ci-upstream-kasan-gce-selinux-root WARNING in io_ring_exit_work
2023/04/16 04:35 upstream a7a55e27ad72 ec410564 .config console log report info ci-upstream-kasan-gce-selinux-root WARNING in io_ring_exit_work
2023/04/15 17:32 upstream 7a934f4bd7d6 ec410564 .config console log report info ci-upstream-kasan-gce-selinux-root WARNING in io_ring_exit_work
2023/04/15 11:38 upstream 95abc817ab3a ec410564 .config console log report info ci-upstream-kasan-gce-root WARNING in io_ring_exit_work
2023/04/15 10:27 upstream 95abc817ab3a ec410564 .config console log report info ci-upstream-kasan-gce-root WARNING in io_ring_exit_work
2023/04/15 04:34 upstream 95abc817ab3a ec410564 .config console log report info ci-upstream-kasan-gce WARNING in io_ring_exit_work
2023/04/14 20:49 upstream 95abc817ab3a 3cfcaa1b .config console log report info ci-upstream-kasan-gce-selinux-root WARNING in io_ring_exit_work
2023/04/14 18:28 upstream 44149752e998 3cfcaa1b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root WARNING in io_ring_exit_work
2023/04/14 12:31 upstream 44149752e998 3cfcaa1b .config console log report info ci-upstream-kasan-gce-root WARNING in io_ring_exit_work
2023/04/14 09:37 upstream 44149752e998 3cfcaa1b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root WARNING in io_ring_exit_work
2023/04/14 04:59 upstream 44149752e998 3cfcaa1b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root WARNING in io_ring_exit_work
2023/04/14 01:41 upstream de4664485abb 3cfcaa1b .config console log report info ci2-upstream-fs WARNING in io_ring_exit_work
2023/04/13 13:36 upstream de4664485abb 3cfcaa1b .config console log report info ci-upstream-kasan-gce-selinux-root WARNING in io_ring_exit_work
2023/04/13 09:51 upstream de4664485abb 82d5e53e .config console log report info ci-upstream-kasan-gce-selinux-root WARNING in io_ring_exit_work
2023/04/13 05:58 upstream 0bcc40255504 82d5e53e .config console log report info ci-upstream-kasan-gce-root WARNING in io_ring_exit_work
2023/04/12 23:57 upstream 0bcc40255504 82d5e53e .config console log report info ci-upstream-kasan-gce-smack-root WARNING in io_ring_exit_work
2023/04/12 20:50 upstream 0bcc40255504 82d5e53e .config console log report info ci-qemu-upstream WARNING in io_ring_exit_work
2023/04/12 12:55 upstream e62252bc55b6 1a1596b6 .config console log report info ci-upstream-kasan-gce WARNING in io_ring_exit_work
2023/04/11 23:10 upstream 2c40519251d6 49faf98d .config console log report info ci-upstream-kasan-gce-smack-root WARNING in io_ring_exit_work
2023/04/11 18:31 upstream 0d3eb744aed4 49faf98d .config console log report info ci-upstream-kasan-gce-selinux-root WARNING in io_ring_exit_work
2023/04/11 15:20 upstream 0d3eb744aed4 71147e29 .config console log report info ci-upstream-kasan-gce-selinux-root WARNING in io_ring_exit_work
2023/04/11 12:28 upstream 0d3eb744aed4 71147e29 .config console log report info ci-upstream-kasan-gce-selinux-root WARNING in io_ring_exit_work
2023/04/11 01:40 upstream 0d3eb744aed4 71147e29 .config console log report info ci-upstream-kasan-gce-selinux-root WARNING in io_ring_exit_work
2023/04/11 00:16 upstream 0d3eb744aed4 71147e29 .config console log report info ci-upstream-kasan-gce-selinux-root WARNING in io_ring_exit_work
2023/04/10 15:50 upstream 09a9639e56c0 71147e29 .config console log report info ci-upstream-kasan-gce-selinux-root WARNING in io_ring_exit_work
2023/04/10 13:02 upstream 09a9639e56c0 71147e29 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in io_ring_exit_work
2023/04/27 01:08 upstream 0cfd8703e7da 19a3dabe .config console log report info ci-qemu-upstream-386 WARNING in io_ring_exit_work
2023/04/24 08:57 upstream 457391b03803 2b32bd34 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 WARNING in io_ring_exit_work
2023/04/10 22:53 upstream 0d3eb744aed4 71147e29 .config console log report info ci-qemu-upstream-386 WARNING in io_ring_exit_work
2023/03/02 06:43 linux-next 26a4eaba02f7 f8902b57 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in io_ring_exit_work
2021/03/11 18:48 linux-next b01d57bfdc41 c2ca1f2a .config console log report info ci-upstream-linux-next-kasan-gce-root WARNING in io_ring_exit_work
2023/04/29 02:36 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 14f8db1c0f9a 62df2017 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in io_ring_exit_work
2023/04/26 19:50 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 14f8db1c0f9a 19a3dabe .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in io_ring_exit_work
2023/04/26 11:57 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 14f8db1c0f9a 7560799c .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in io_ring_exit_work
2023/04/24 04:03 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 14f8db1c0f9a 2b32bd34 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in io_ring_exit_work
2023/04/21 09:13 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 14f8db1c0f9a 2b32bd34 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in io_ring_exit_work
2023/04/20 14:55 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 327bf9bb94cf 2b32bd34 .config console log report info ci-upstream-gce-arm64 WARNING in io_ring_exit_work
2021/06/02 04:02 git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux.git fixes 18a3c5f7abfd 032639db .config console log report info ci-qemu2-riscv64 WARNING in io_ring_exit_work
* Struck through repros no longer work on HEAD.