syzbot


possible deadlock in kill_fasync
Status: upstream: reported C repro on 2020/10/03 10:29
Reported-by: syzbot+3e12e14ee01b675e1af2@syzkaller.appspotmail.com
First crash: 153d, last: 8h20m

Cause bisection: introduced by (bisect log) :
commit e918188611f073063415f40fae568fa4d86d9044
Author: Boqun Feng <boqun.feng@gmail.com>
Date: Fri Aug 7 07:42:20 2020 +0000

  locking: More accurate annotations for read_lock()

Crash: possible deadlock in kill_fasync (log)
Repro: C syz .config

Sample crash report:

Crashes (172):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce 2020/12/26 21:17 upstream 40f78232 821e0b09 .config log report syz C
ci-upstream-linux-next-kasan-gce-root 2020/11/17 20:31 linux-next 7c8ca812 bd2a760b .config log report syz C
ci-upstream-kasan-gce 2021/03/01 21:30 upstream fe07bfda 183afb6c .config log report info possible deadlock in kill_fasync
ci-upstream-kasan-gce 2021/03/01 20:04 upstream fe07bfda 183afb6c .config log report info possible deadlock in kill_fasync
ci-upstream-kasan-gce-selinux-root 2021/02/27 08:27 upstream 3fb6d0e0 4c37c133 .config log report info possible deadlock in kill_fasync
ci-upstream-kasan-gce-selinux-root 2021/02/26 16:48 upstream 2c87f7a3 4c37c133 .config log report info possible deadlock in kill_fasync
ci-upstream-kasan-gce 2021/02/26 15:19 upstream 2c87f7a3 4c37c133 .config log report info possible deadlock in kill_fasync
ci-upstream-kasan-gce-smack-root 2021/02/26 11:12 upstream 2c87f7a3 76f7fc95 .config log report info possible deadlock in kill_fasync
ci-upstream-kasan-gce-selinux-root 2021/02/25 16:24 upstream 29c395c7 76f7fc95 .config log report info possible deadlock in kill_fasync
ci-upstream-kasan-gce-selinux-root 2021/02/25 00:41 upstream 719bbd4a fcc6d71b .config log report info possible deadlock in kill_fasync
ci-upstream-kasan-gce 2021/02/24 23:21 upstream 719bbd4a fcc6d71b .config log report info possible deadlock in kill_fasync
ci-upstream-kasan-gce 2021/02/24 05:43 upstream c03c21ba fcc6d71b .config log report info possible deadlock in kill_fasync
ci-upstream-kasan-gce 2021/02/21 03:17 upstream f40ddce8 3e5ed8b4 .config log report info possible deadlock in kill_fasync
ci-upstream-kasan-gce 2021/02/13 11:21 upstream c6d8570e 98682e5e .config log report info possible deadlock in kill_fasync
ci-upstream-kasan-gce 2021/02/12 20:46 upstream dcc0b490 98682e5e .config log report info possible deadlock in kill_fasync
ci-upstream-kasan-gce 2021/02/11 22:56 upstream 291009f6 a5f86b15 .config log report info possible deadlock in kill_fasync
ci-upstream-kasan-gce 2021/02/07 22:39 upstream b75dba7f 2ce644fc .config log report info possible deadlock in kill_fasync
ci-upstream-kasan-gce-smack-root 2021/02/07 10:39 upstream 825b5991 2ce644fc .config log report info possible deadlock in kill_fasync
ci-upstream-kasan-gce 2021/02/06 03:47 upstream 1e0d27fc 23a562df .config log report info possible deadlock in kill_fasync
ci-upstream-kasan-gce-smack-root 2021/02/05 15:04 upstream dd86e7fa 23a562df .config log report info possible deadlock in kill_fasync
ci-upstream-kasan-gce 2021/02/05 13:56 upstream dd86e7fa 23a562df .config log report info possible deadlock in kill_fasync
ci-upstream-kasan-gce-smack-root 2021/02/04 13:49 upstream 61556703 42b90a7c .config log report info possible deadlock in kill_fasync
ci-upstream-kasan-gce 2021/02/04 12:47 upstream 61556703 42b90a7c .config log report info possible deadlock in kill_fasync
ci-upstream-kasan-gce-smack-root 2021/02/03 20:43 upstream 3afe9076 624dad51 .config log report info possible deadlock in kill_fasync
ci-upstream-kasan-gce-smack-root 2021/02/03 02:19 upstream 3aaf0a27 624dad51 .config log report info possible deadlock in kill_fasync
ci-upstream-kasan-gce 2021/02/02 10:11 upstream 88bb507a 19e09687 .config log report info possible deadlock in kill_fasync
ci-upstream-kasan-gce-smack-root 2021/02/01 06:22 upstream 1048ba83 fc9fd31e .config log report info possible deadlock in kill_fasync
ci-upstream-kasan-gce 2021/01/29 23:10 upstream bec4c296 fc9fd31e .config log report info possible deadlock in kill_fasync
ci-upstream-kasan-gce-smack-root 2021/01/29 11:41 upstream bec4c296 6593fd32 .config log report info possible deadlock in kill_fasync
ci-upstream-kasan-gce-smack-root 2021/01/28 21:14 upstream e5ff2cb9 7df34f59 .config log report info possible deadlock in kill_fasync
ci-upstream-kasan-gce 2021/01/28 19:50 upstream e5ff2cb9 7df34f59 .config log report info possible deadlock in kill_fasync
ci-upstream-kasan-gce 2021/01/27 23:48 upstream 76c057c8 eefc07f2 .config log report info possible deadlock in kill_fasync
ci-upstream-kasan-gce 2021/01/27 08:15 upstream 2ab38c17 55a7d4df .config log report info possible deadlock in kill_fasync
ci-upstream-kasan-gce-smack-root 2021/01/26 17:23 upstream 13391c60 55a7d4df .config log report info possible deadlock in kill_fasync
ci-upstream-kasan-gce 2021/01/25 22:52 upstream f8ad8187 52e37319 .config log report info possible deadlock in kill_fasync
ci-upstream-kasan-gce 2021/01/25 10:31 upstream 6ee1d745 52e37319 .config log report info possible deadlock in kill_fasync
ci-upstream-kasan-gce-smack-root 2021/01/24 22:53 upstream e6806137 52e37319 .config log report info possible deadlock in kill_fasync
ci-upstream-kasan-gce-smack-root 2021/01/24 20:32 upstream e6806137 52e37319 .config log report info possible deadlock in kill_fasync
ci-upstream-kasan-gce-root 2021/01/22 18:41 upstream 83d09ad4 d4f4eca5 .config log report info possible deadlock in kill_fasync
ci-upstream-kasan-gce-root 2021/01/22 05:30 upstream 9f29bd8b d4f4eca5 .config log report info possible deadlock in kill_fasync
ci-upstream-kasan-gce-386 2021/03/01 15:48 upstream fe07bfda 4c37c133 .config log report info possible deadlock in kill_fasync
ci-upstream-kasan-gce-386 2021/03/01 14:37 upstream fe07bfda 4c37c133 .config log report info possible deadlock in kill_fasync
ci-upstream-kasan-gce-386 2021/03/01 00:47 upstream 06d5d309 4c37c133 .config log report info possible deadlock in kill_fasync
ci-upstream-kasan-gce-386 2021/02/27 01:19 upstream 8b83369d 4c37c133 .config log report info possible deadlock in kill_fasync
ci-upstream-kasan-gce-386 2021/02/22 15:32 upstream 31caf8b2 a659b3f1 .config log report info possible deadlock in kill_fasync
ci-upstream-kasan-gce-386 2021/02/21 04:38 upstream e767b353 3e5ed8b4 .config log report info possible deadlock in kill_fasync
ci-upstream-kasan-gce-386 2021/02/17 22:32 upstream f40ddce8 14052202 .config log report info possible deadlock in kill_fasync
ci-upstream-kasan-gce-386 2021/02/07 09:39 upstream 825b5991 2ce644fc .config log report info possible deadlock in kill_fasync
ci-upstream-kasan-gce-386 2021/02/07 00:50 upstream 964d069f 0655e081 .config log report info possible deadlock in kill_fasync
ci-upstream-kasan-gce-386 2021/02/01 15:18 upstream 1048ba83 e6b95f32 .config log report info possible deadlock in kill_fasync
ci-upstream-kasan-gce-386 2021/01/30 08:24 upstream 0e9bcda5 fc9fd31e .config log report info possible deadlock in kill_fasync
ci-upstream-kasan-gce-386 2021/01/28 16:05 upstream 76c057c8 7df34f59 .config log report info possible deadlock in kill_fasync
ci-upstream-kasan-gce-386 2021/01/28 01:14 upstream 76c057c8 eefc07f2 .config log report info possible deadlock in kill_fasync
ci-upstream-kasan-gce-386 2021/01/27 12:24 upstream 2ab38c17 a0ebf917 .config log report info possible deadlock in kill_fasync
ci-upstream-kasan-gce-386 2021/01/26 13:12 upstream 13391c60 52e37319 .config log report info possible deadlock in kill_fasync
ci-upstream-linux-next-kasan-gce-root 2021/01/18 20:44 linux-next 93bf8b94 63631df1 .config log report info possible deadlock in kill_fasync
ci-upstream-kasan-gce-selinux-root 2021/01/17 01:52 upstream 0da0a8a0 65a7a854 .config log report info
ci-upstream-linux-next-kasan-gce-root 2020/09/29 10:21 linux-next 663b07a4 1b88c6d5 .config log report info