syzbot


possible deadlock in do_fcntl
Status: upstream: reported C repro on 2020/09/28 07:17
Reported-by: syzbot+e6d5398a02c516ce5e70@syzkaller.appspotmail.com
First crash: 153d, last: 1d03h

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 do_fcntl (log)
Repro: C syz .config

Sample crash report:

Crashes (127):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce 2020/12/10 03:44 upstream a68a0262 c090b4da .config log report syz C
ci-upstream-linux-next-kasan-gce-root 2020/10/31 17:38 linux-next 4e78c578 8bc4594f .config log report syz C
ci-upstream-kasan-gce-smack-root 2021/02/27 20:53 upstream 5695e516 4c37c133 .config log report info possible deadlock in do_fcntl
ci-upstream-kasan-gce 2021/02/27 19:03 upstream 5695e516 4c37c133 .config log report info possible deadlock in do_fcntl
ci-upstream-kasan-gce-root 2021/02/25 02:04 upstream 062c84fc fcc6d71b .config log report info possible deadlock in do_fcntl
ci-upstream-kasan-gce-smack-root 2021/02/23 22:11 upstream 3b9cdafb fcc6d71b .config log report info possible deadlock in do_fcntl
ci-upstream-kasan-gce-root 2021/02/23 19:23 upstream 3b9cdafb fcc6d71b .config log report info possible deadlock in do_fcntl
ci-upstream-kasan-gce 2021/02/23 15:59 upstream 3b9cdafb fcc6d71b .config log report info possible deadlock in do_fcntl
ci-upstream-kasan-gce-root 2021/02/21 23:37 upstream 55f62bc8 a659b3f1 .config log report info possible deadlock in do_fcntl
ci-upstream-kasan-gce 2021/02/21 12:29 upstream e767b353 3e5ed8b4 .config log report info possible deadlock in do_fcntl
ci-upstream-kasan-gce 2021/02/20 10:30 upstream f40ddce8 3e5ed8b4 .config log report info possible deadlock in do_fcntl
ci-upstream-kasan-gce 2021/02/19 14:12 upstream f40ddce8 14052202 .config log report info possible deadlock in do_fcntl
ci-upstream-kasan-gce 2021/02/17 20:40 upstream f40ddce8 14052202 .config log report info possible deadlock in do_fcntl
ci-upstream-kasan-gce 2021/02/14 00:56 upstream ac30d8ce 98682e5e .config log report info possible deadlock in do_fcntl
ci-upstream-kasan-gce 2021/02/11 21:13 upstream 291009f6 a5f86b15 .config log report info possible deadlock in do_fcntl
ci-upstream-kasan-gce 2021/02/11 19:43 upstream 291009f6 a5f86b15 .config log report info possible deadlock in do_fcntl
ci-upstream-kasan-gce 2021/02/09 16:53 upstream e0756cfc 2bd9619f .config log report info possible deadlock in do_fcntl
ci-upstream-kasan-gce 2021/02/07 23:17 upstream b75dba7f 2ce644fc .config log report info possible deadlock in do_fcntl
ci-upstream-kasan-gce 2021/02/06 16:14 upstream 1e0d27fc 0655e081 .config log report info possible deadlock in do_fcntl
ci-upstream-kasan-gce-smack-root 2021/02/06 14:56 upstream 1e0d27fc 0655e081 .config log report info possible deadlock in do_fcntl
ci-upstream-kasan-gce 2021/02/06 12:52 upstream 1e0d27fc 0655e081 .config log report info possible deadlock in do_fcntl
ci-upstream-kasan-gce-smack-root 2021/02/05 00:26 upstream 5c279c4c 23a562df .config log report info possible deadlock in do_fcntl
ci-upstream-kasan-gce 2021/02/04 12:19 upstream 61556703 42b90a7c .config log report info possible deadlock in do_fcntl
ci-upstream-kasan-gce 2021/02/04 09:21 upstream 3afe9076 624dad51 .config log report info possible deadlock in do_fcntl
ci-upstream-kasan-gce 2021/01/31 00:01 upstream 8c947645 fc9fd31e .config log report info possible deadlock in do_fcntl
ci-upstream-kasan-gce 2021/01/30 22:58 upstream 8c947645 fc9fd31e .config log report info possible deadlock in do_fcntl
ci-upstream-kasan-gce-smack-root 2021/01/30 08:10 upstream 0e9bcda5 fc9fd31e .config log report info possible deadlock in do_fcntl
ci-upstream-kasan-gce 2021/01/27 10:40 upstream 2ab38c17 a0ebf917 .config log report info possible deadlock in do_fcntl
ci-upstream-kasan-gce 2021/01/27 08:15 upstream 2ab38c17 55a7d4df .config log report info possible deadlock in do_fcntl
ci-upstream-kasan-gce 2021/01/25 09:28 upstream 6ee1d745 52e37319 .config log report info possible deadlock in do_fcntl
ci-upstream-kasan-gce-smack-root 2021/01/24 00:27 upstream e1ae4b0b 52e37319 .config log report info possible deadlock in do_fcntl
ci-upstream-kasan-gce 2021/01/22 15:36 upstream 9f29bd8b d4f4eca5 .config log report info possible deadlock in do_fcntl
ci-upstream-kasan-gce-smack-root 2021/01/22 04:32 upstream 9f29bd8b d4f4eca5 .config log report info possible deadlock in do_fcntl
ci-upstream-kasan-gce-root 2021/01/20 11:14 upstream 45dfb8a5 d4f4eca5 .config log report info possible deadlock in do_fcntl
ci-upstream-kasan-gce-smack-root 2021/01/20 09:06 upstream 45dfb8a5 d4f4eca5 .config log report info possible deadlock in do_fcntl
ci-upstream-kasan-gce-selinux-root 2021/01/20 06:18 upstream 45dfb8a5 63631df1 .config log report info possible deadlock in do_fcntl
ci-upstream-kasan-gce 2021/01/19 21:23 upstream 1e2a199f 63631df1 .config log report info possible deadlock in do_fcntl
ci-upstream-kasan-gce 2021/01/19 04:33 upstream 1e2a199f 63631df1 .config log report info possible deadlock in do_fcntl
ci-upstream-kasan-gce-smack-root 2021/01/18 15:17 upstream 19c329f6 63631df1 .config log report info possible deadlock in do_fcntl
ci-upstream-kasan-gce 2021/01/18 07:06 upstream a1339d63 fd103621 .config log report info possible deadlock in do_fcntl
ci-upstream-kasan-gce-386 2021/02/26 08:55 upstream 2c87f7a3 76f7fc95 .config log report info possible deadlock in do_fcntl
ci-upstream-kasan-gce-386 2021/02/17 10:20 upstream f40ddce8 052f8d9f .config log report info possible deadlock in do_fcntl
ci-upstream-kasan-gce-386 2021/02/13 09:10 upstream c6d8570e 98682e5e .config log report info possible deadlock in do_fcntl
ci-upstream-kasan-gce-386 2021/02/12 10:29 upstream dcc0b490 a5f86b15 .config log report info possible deadlock in do_fcntl
ci-upstream-kasan-gce-386 2021/02/11 23:03 upstream 291009f6 a5f86b15 .config log report info possible deadlock in do_fcntl
ci-upstream-kasan-gce-386 2021/02/09 01:26 upstream e0756cfc 2bd9619f .config log report info possible deadlock in do_fcntl
ci-upstream-kasan-gce-386 2021/02/04 23:37 upstream 5c279c4c 23a562df .config log report info possible deadlock in do_fcntl
ci-upstream-kasan-gce-386 2021/02/02 07:14 upstream 88bb507a e6b95f32 .config log report info possible deadlock in do_fcntl
ci-upstream-kasan-gce-386 2021/02/01 11:46 upstream 1048ba83 fc9fd31e .config log report info possible deadlock in do_fcntl
ci-upstream-kasan-gce-386 2021/02/01 06:31 upstream 1048ba83 fc9fd31e .config log report info possible deadlock in do_fcntl
ci-upstream-kasan-gce-386 2021/01/28 19:39 upstream e5ff2cb9 7df34f59 .config log report info possible deadlock in do_fcntl
ci-upstream-kasan-gce-386 2021/01/26 18:33 upstream 13391c60 55a7d4df .config log report info possible deadlock in do_fcntl
ci-upstream-kasan-gce-386 2021/01/23 22:41 upstream e1ae4b0b 52e37319 .config log report info possible deadlock in do_fcntl
ci-upstream-linux-next-kasan-gce-root 2021/01/22 23:20 linux-next bc085f8f 4080af96 .config log report info possible deadlock in do_fcntl
ci-upstream-kasan-gce-386 2021/01/17 14:15 upstream 0da0a8a0 813be542 .config log report info
ci-upstream-linux-next-kasan-gce-root 2020/09/28 06:34 linux-next d1d2220c 5dd8aee8 .config log report info