syzbot


possible deadlock in uart_write
Status: upstream: reported C repro on 2019/12/26 21:25
Reported-by: syzbot+b0e376d3731cd5e82bb7@syzkaller.appspotmail.com
First crash: 710d, last: 1d04h

Cause bisection: the issue happens on the oldest tested release (bisect log)
Crash: WARNING in sysfs_warn_dup (log)
Repro: C syz .config

Fix bisection: fixed by (bisect log) [no-op commit]:
commit c6f7c753f71cccb21d1a7f0c1127ce7804374c5e
Author: Christoph Hellwig <hch@lst.de>
Date: Thu Sep 3 14:22:37 2020 +0000

  lkdtm: remove set_fs-based tests

similar bugs (2):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.19 possible deadlock in uart_write C 571 4d00h 668d 0/1 upstream: reported C repro on 2020/02/04 05:05
linux-4.14 possible deadlock in uart_write C 285 16d 676d 0/1 upstream: reported C repro on 2020/01/26 11:10

Sample crash report:

Crashes (594):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce-selinux-root 2020/03/07 06:48 upstream fb279f4e2386 fd2a5f28 .config log report syz C
ci-upstream-kasan-gce-root 2020/03/05 07:37 upstream 63623fd44972 c88c7b75 .config log report syz C
ci-upstream-kasan-gce-smack-root 2020/03/03 03:31 upstream 63623fd44972 c88c7b75 .config log report syz C
ci-upstream-kasan-gce 2020/03/01 01:44 upstream f8788d86ab28 59b57593 .config log report syz C
ci-upstream-linux-next-kasan-gce-root 2020/03/18 11:14 linux-next 770fbb32d34e 97bc55ce .config log report syz C
ci-upstream-kasan-gce-386 2020/03/01 06:37 upstream 63623fd44972 c88c7b75 .config log report syz
ci-upstream-kasan-gce-selinux-root 2021/12/02 02:57 upstream 58e1100fdc59 61f86278 .config log report info possible deadlock in uart_write
ci-upstream-kasan-gce-smack-root 2021/12/01 00:40 upstream f080815fdb3e 80270552 .config log report info possible deadlock in uart_write
ci-upstream-kasan-gce-smack-root 2021/11/29 17:49 upstream d58071a8a76d d0830353 .config log report info possible deadlock in uart_write
ci-upstream-kasan-gce-selinux-root 2021/11/29 13:02 upstream d58071a8a76d 63eeac02 .config log report info possible deadlock in uart_write
ci-upstream-kasan-gce-selinux-root 2021/11/27 16:36 upstream c5c17547b778 63eeac02 .config log report info possible deadlock in uart_write
ci-upstream-kasan-gce-smack-root 2021/11/27 00:33 upstream c5c17547b778 63eeac02 .config log report info possible deadlock in uart_write
ci-upstream-kasan-gce-root 2021/11/26 11:17 upstream a4849f6000e2 63eeac02 .config log report info possible deadlock in uart_write
ci-upstream-kasan-gce-selinux-root 2021/11/25 05:51 upstream 5f53fa508db0 545ab074 .config log report info possible deadlock in uart_write
ci-upstream-kasan-gce-smack-root 2021/11/24 17:40 upstream 5d9f4cf36721 545ab074 .config log report info possible deadlock in uart_write
ci-upstream-kasan-gce-selinux-root 2021/11/22 01:08 upstream 40c93d7fff6f 4eb20a4e .config log report info possible deadlock in uart_write
ci-upstream-kasan-gce-root 2021/11/21 09:12 upstream 923dcc5eb0c1 4eb20a4e .config log report info possible deadlock in uart_write
ci-upstream-kasan-gce-root 2021/11/17 15:18 upstream 8ab774587903 cafff8b6 .config log report info possible deadlock in uart_write
ci-upstream-kasan-gce-smack-root 2021/11/17 01:11 upstream 8ab774587903 cafff8b6 .config log report info possible deadlock in uart_write
ci-upstream-kasan-gce-smack-root 2021/11/16 11:55 upstream 8ab774587903 600426bd .config log report info possible deadlock in uart_write
ci-upstream-kasan-gce-root 2021/11/15 08:03 upstream fa55b7dcdc43 83f5c9b5 .config log report info possible deadlock in uart_write
ci-upstream-kasan-gce-smack-root 2021/11/14 12:59 upstream ccfff0a2bd2a 83f5c9b5 .config log report info possible deadlock in uart_write
ci-upstream-kasan-gce-selinux-root 2021/11/12 18:00 upstream 5833291ab6de 83f5c9b5 .config log report info possible deadlock in uart_write
ci-upstream-kasan-gce-root 2021/11/11 11:50 upstream debe436e77c7 75b04091 .config log report info possible deadlock in uart_write
ci-upstream-kasan-gce-root 2021/11/10 21:58 upstream 881007522c8f 75b04091 .config log report info possible deadlock in uart_write
ci-upstream-kasan-gce-root 2021/11/08 08:04 upstream 6b75d88fa81b 4c1be0be .config log report info possible deadlock in uart_write
ci-upstream-kasan-gce 2021/11/07 11:03 upstream 512b7931ad05 4c1be0be .config log report info possible deadlock in uart_write
ci-upstream-kasan-gce-smack-root 2021/11/06 22:32 upstream 512b7931ad05 4c1be0be .config log report info possible deadlock in uart_write
ci-upstream-kasan-gce-root 2021/11/05 20:46 upstream d4439a1189f9 4c1be0be .config log report info possible deadlock in uart_write
ci-upstream-kasan-gce-root 2021/11/04 15:52 upstream ce840177930f 4c1be0be .config log report info possible deadlock in uart_write
ci-upstream-kasan-gce-root 2021/11/03 19:38 upstream dcd68326d29b 4c1be0be .config log report info possible deadlock in uart_write
ci-upstream-kasan-gce-root 2021/11/03 15:47 upstream dcd68326d29b 4c1be0be .config log report info possible deadlock in uart_write
ci-upstream-kasan-gce-selinux-root 2021/11/03 00:09 upstream bfc484fe6abb 17f3edd2 .config log report info possible deadlock in uart_write
ci-upstream-kasan-gce-smack-root 2021/11/02 17:37 upstream bfc484fe6abb 17f3edd2 .config log report info possible deadlock in uart_write
ci-upstream-kasan-gce-root 2021/10/30 20:44 upstream 119c85055d86 098b5d53 .config log report info possible deadlock in uart_write
ci-upstream-kasan-gce-root 2021/10/30 19:40 upstream 119c85055d86 098b5d53 .config log report info possible deadlock in uart_write
ci-upstream-kasan-gce-selinux-root 2021/10/29 23:43 upstream a379fbbcb88b 098b5d53 .config log report info possible deadlock in uart_write
ci-upstream-kasan-gce 2021/10/28 23:30 upstream 411a44c24a56 be531bb4 .config log report info possible deadlock in uart_write
ci-upstream-kasan-gce-selinux-root 2021/10/27 07:16 upstream d25f27432f80 d50eb50a .config log report info possible deadlock in uart_write
ci-upstream-kasan-gce-smack-root 2021/10/25 07:18 upstream 87066fdd2e30 4f0000ee .config log report info possible deadlock in uart_write
ci-upstream-kasan-gce-root 2021/10/25 04:47 upstream 87066fdd2e30 4f0000ee .config log report info possible deadlock in uart_write
ci-upstream-kasan-gce 2021/10/24 17:58 upstream 6c62666d8879 282f03fb .config log report info possible deadlock in uart_write
ci-upstream-kasan-gce-root 2021/10/23 09:38 upstream 9c0c4d24ac00 282f03fb .config log report info possible deadlock in uart_write
ci-upstream-kasan-gce-386 2021/11/27 19:38 upstream c5c17547b778 63eeac02 .config log report info possible deadlock in uart_write
ci-upstream-kasan-gce-386 2021/11/26 20:24 upstream a4849f6000e2 63eeac02 .config log report info possible deadlock in uart_write
ci-upstream-kasan-gce-386 2021/11/20 02:21 upstream 4c388a8e740d 3a9d0024 .config log report info possible deadlock in uart_write
ci-upstream-kasan-gce-386 2021/11/16 21:33 upstream 8ab774587903 600426bd .config log report info possible deadlock in uart_write
ci-upstream-kasan-gce-386 2021/11/16 01:48 upstream 8ab774587903 83f5c9b5 .config log report info possible deadlock in uart_write
ci-upstream-kasan-gce-386 2021/11/03 14:36 upstream dcd68326d29b 4c1be0be .config log report info possible deadlock in uart_write
ci-upstream-kasan-gce-386 2021/11/03 11:34 upstream dcd68326d29b 17f3edd2 .config log report info possible deadlock in uart_write
ci-upstream-kasan-gce-386 2021/10/29 20:45 upstream a379fbbcb88b 098b5d53 .config log report info possible deadlock in uart_write
ci-upstream-kasan-gce-386 2021/10/29 05:45 upstream f25a5481af12 2353a3ec .config log report info possible deadlock in uart_write
ci-upstream-linux-next-kasan-gce-root 2021/11/25 21:03 linux-next f81e94e91878 63eeac02 .config log report info possible deadlock in uart_write
ci-upstream-linux-next-kasan-gce-root 2021/11/03 03:42 linux-next 9150de4aac1e 17f3edd2 .config log report info possible deadlock in uart_write
ci-upstream-linux-next-kasan-gce-root 2021/11/02 11:22 linux-next 9150de4aac1e 098b5d53 .config log report info possible deadlock in uart_write
ci-upstream-linux-next-kasan-gce-root 2021/10/25 06:06 linux-next cf6c9d12750c 4f0000ee .config log report info possible deadlock in uart_write
ci-upstream-kasan-gce 2020/10/11 04:19 upstream da690031a5d6 4a77ae0b .config log report info
ci-upstream-kasan-gce-386 2019/12/24 05:06 upstream 46cf053efec6 be5c2c81 .config log report