syzbot


WARNING in percpu_ref_kill_and_confirm (2)
Status: fixed on 2021/03/10 01:48
Reported-by: syzbot+c9937dfb2303a5f18640@syzkaller.appspotmail.com
Fix commit: 9faadcc8abe4 io_uring: fix double io_uring free
First crash: 360d, last: 348d

Cause bisection: introduced by (bisect log) :
commit 4d004099a668c41522242aa146a38cc4eb59cb1e
Author: Peter Zijlstra <peterz@infradead.org>
Date: Fri Oct 2 09:04:21 2020 +0000

  lockdep: Fix lockdep recursion

Crash: BUG: using __this_cpu_read() in preemptible code in trace_hardirqs_on (log)
Repro: C syz .config
duplicates (2):
Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
KASAN: use-after-free Read in io_ring_ctx_wait_and_kill 19 349d 353d 0/22 closed as dup on 2020/12/23 23:17
WARNING in __percpu_ref_exit 15 275d 371d 0/22 closed as dup on 2020/12/23 23:15
similar bugs (1):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream WARNING in percpu_ref_kill_and_confirm C done 443 954d 961d 13/22 fixed on 2019/05/27 12:48

Sample crash report:

Crashes (71):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce-root 2020/12/13 01:50 upstream 7b1b868e1d91 bca53db9 .config log report syz C
ci-upstream-kasan-gce-selinux-root 2020/12/22 08:53 upstream 8653b778e454 04201c06 .config log report syz
ci-upstream-kasan-gce 2020/12/21 18:42 upstream e37b12e4bb21 04201c06 .config log report syz
ci-upstream-kasan-gce-selinux-root 2020/12/21 06:20 upstream 6a447b0e3151 04201c06 .config log report syz
ci-upstream-kasan-gce 2020/12/20 15:32 upstream 467f8165a2b0 04201c06 .config log report syz
ci-upstream-kasan-gce 2020/12/20 06:02 upstream 467f8165a2b0 04201c06 .config log report syz
ci-upstream-kasan-gce-selinux-root 2020/12/19 06:38 upstream a409ed156a90 04201c06 .config log report syz
ci-upstream-kasan-gce-selinux-root 2020/12/19 02:42 upstream a409ed156a90 04201c06 .config log report syz
ci-upstream-linux-next-kasan-gce-root 2020/12/22 17:22 linux-next 6c3eb1b174c0 04201c06 .config log report syz
ci-upstream-linux-next-kasan-gce-root 2020/12/21 11:54 linux-next 4c6ed015c2a5 04201c06 .config log report syz
ci-upstream-linux-next-kasan-gce-root 2020/12/19 23:15 linux-next 0d52778b8710 04201c06 .config log report syz
ci-upstream-kasan-gce 2020/12/24 21:39 upstream 58cf05f597b0 c2c1d1dd .config log report info
ci-upstream-kasan-gce 2020/12/24 09:42 upstream 58cf05f597b0 c2c1d1dd .config log report info
ci-upstream-kasan-gce-selinux-root 2020/12/23 22:23 upstream 614cb5894306 c2c1d1dd .config log report info
ci-upstream-kasan-gce-selinux-root 2020/12/23 08:39 upstream 614cb5894306 04201c06 .config log report info
ci-upstream-kasan-gce 2020/12/22 15:19 upstream 8653b778e454 04201c06 .config log report info
ci-upstream-kasan-gce 2020/12/22 06:53 upstream 8653b778e454 04201c06 .config log report info
ci-upstream-kasan-gce-selinux-root 2020/12/22 02:08 upstream 8653b778e454 04201c06 .config log report info
ci-upstream-kasan-gce-selinux-root 2020/12/22 00:03 upstream e37b12e4bb21 04201c06 .config log report info
ci-upstream-kasan-gce 2020/12/21 11:15 upstream 6a447b0e3151 04201c06 .config log report info
ci-upstream-kasan-gce-selinux-root 2020/12/21 08:06 upstream 6a447b0e3151 04201c06 .config log report info
ci-upstream-kasan-gce 2020/12/20 19:57 upstream 467f8165a2b0 04201c06 .config log report info
ci-upstream-kasan-gce 2020/12/19 06:18 upstream a409ed156a90 04201c06 .config log report info
ci-upstream-kasan-gce 2020/12/18 03:52 upstream d64c6f96ba86 04201c06 .config log report info
ci-upstream-kasan-gce-selinux-root 2020/12/17 09:57 upstream accefff5b547 04201c06 .config log report info
ci-upstream-kasan-gce 2020/12/17 01:21 upstream 5e60366d56c6 04201c06 .config log report info
ci-upstream-kasan-gce 2020/12/16 11:20 upstream d635a69dd498 f213e07e .config log report info
ci-upstream-kasan-gce-selinux-root 2020/12/16 07:26 upstream d635a69dd498 f213e07e .config log report info
ci-upstream-kasan-gce-selinux-root 2020/12/16 06:34 upstream d635a69dd498 f213e07e .config log report info
ci-upstream-kasan-gce-root 2020/12/16 06:16 upstream d635a69dd498 f213e07e .config log report info
ci-upstream-kasan-gce-smack-root 2020/12/16 05:42 upstream d635a69dd498 f213e07e .config log report info
ci-upstream-kasan-gce-root 2020/12/16 02:11 upstream 148842c98a24 97183ed7 .config log report info
ci-upstream-kasan-gce-selinux-root 2020/12/15 22:59 upstream 148842c98a24 97183ed7 .config log report info
ci-upstream-kasan-gce-smack-root 2020/12/15 22:07 upstream 148842c98a24 97183ed7 .config log report info
ci-upstream-kasan-gce-root 2020/12/15 19:13 upstream 148842c98a24 97183ed7 .config log report info
ci-upstream-kasan-gce 2020/12/15 15:33 upstream 148842c98a24 97183ed7 .config log report info
ci-upstream-kasan-gce 2020/12/15 14:46 upstream 148842c98a24 97183ed7 .config log report info
ci-upstream-kasan-gce-root 2020/12/15 12:03 upstream 148842c98a24 97183ed7 .config log report info
ci-upstream-kasan-gce-root 2020/12/15 10:59 upstream 148842c98a24 97183ed7 .config log report info
ci-upstream-kasan-gce-smack-root 2020/12/15 04:52 upstream 2c85ebc57b3e 97183ed7 .config log report info
ci-upstream-kasan-gce-root 2020/12/15 04:22 upstream 2c85ebc57b3e 97183ed7 .config log report info
ci-upstream-kasan-gce 2020/12/15 02:39 upstream 2c85ebc57b3e 97183ed7 .config log report info
ci-upstream-kasan-gce 2020/12/15 02:31 upstream 2c85ebc57b3e 97183ed7 .config log report info
ci-upstream-kasan-gce 2020/12/15 02:30 upstream 2c85ebc57b3e 97183ed7 .config log report info
ci-upstream-kasan-gce-smack-root 2020/12/14 23:53 upstream 2c85ebc57b3e 97183ed7 .config log report info
ci-upstream-kasan-gce-root 2020/12/14 23:44 upstream 2c85ebc57b3e 97183ed7 .config log report info
ci-upstream-kasan-gce-selinux-root 2020/12/14 22:54 upstream 2c85ebc57b3e 97183ed7 .config log report info
ci-upstream-kasan-gce 2020/12/14 21:53 upstream 2c85ebc57b3e 97183ed7 .config log report info
ci-upstream-kasan-gce 2020/12/14 19:26 upstream 2c85ebc57b3e 97183ed7 .config log report info
ci-upstream-kasan-gce 2020/12/14 16:01 upstream 2c85ebc57b3e 97183ed7 .config log report info
ci-upstream-kasan-gce 2020/12/14 08:41 upstream 6bff9bb8a292 b22a7ec3 .config log report info
ci-upstream-kasan-gce 2020/12/14 06:05 upstream 6bff9bb8a292 b22a7ec3 .config log report info
ci-upstream-kasan-gce-smack-root 2020/12/14 04:29 upstream 6bff9bb8a292 b22a7ec3 .config log report info
ci-upstream-kasan-gce-smack-root 2020/12/14 03:46 upstream 6bff9bb8a292 b22a7ec3 .config log report info
ci-upstream-kasan-gce 2020/12/13 16:20 upstream 6bff9bb8a292 bca53db9 .config log report info
ci-upstream-kasan-gce-selinux-root 2020/12/13 10:56 upstream 7b1b868e1d91 bca53db9 .config log report info
ci-upstream-kasan-gce-root 2020/12/13 07:40 upstream 7b1b868e1d91 bca53db9 .config log report info
ci-upstream-kasan-gce-root 2020/12/13 06:37 upstream 7b1b868e1d91 bca53db9 .config log report info
ci-upstream-kasan-gce-smack-root 2020/12/13 05:46 upstream 7b1b868e1d91 bca53db9 .config log report info
ci-upstream-kasan-gce 2020/12/13 02:17 upstream 7b1b868e1d91 bca53db9 .config log report info
ci-upstream-kasan-gce-root 2020/12/13 01:36 upstream 7b1b868e1d91 bca53db9 .config log report info
ci-upstream-kasan-gce-selinux-root 2020/12/13 00:49 upstream 7b1b868e1d91 bca53db9 .config log report info
ci-upstream-kasan-gce-selinux-root 2020/12/12 22:20 upstream 7b1b868e1d91 bca53db9 .config log report info
ci-upstream-kasan-gce 2020/12/12 21:06 upstream 7b1b868e1d91 bca53db9 .config log report info
ci-upstream-kasan-gce-386 2020/12/21 16:34 upstream e37b12e4bb21 04201c06 .config log report info
ci-upstream-kasan-gce-386 2020/12/17 22:04 upstream accefff5b547 04201c06 .config log report info
ci-upstream-kasan-gce-386 2020/12/15 16:45 upstream 148842c98a24 97183ed7 .config log report info
ci-upstream-kasan-gce-386 2020/12/15 07:06 upstream 148842c98a24 97183ed7 .config log report info
ci-upstream-kasan-gce-386 2020/12/13 14:27 upstream 7b1b868e1d91 bca53db9 .config log report info
ci-upstream-linux-next-kasan-gce-root 2020/12/20 12:18 linux-next 0d52778b8710 04201c06 .config log report info
ci-upstream-linux-next-kasan-gce-root 2020/12/20 05:55 linux-next 0d52778b8710 04201c06 .config log report info