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: 590d, last: 9h43m

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 415 34m 548d 0/1 upstream: reported C repro on 2020/02/04 05:05
linux-4.14 possible deadlock in uart_write C 285 17d 557d 0/1 upstream: reported C repro on 2020/01/26 11:10

Sample crash report:

Crashes (441):
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 2021/07/31 08:40 upstream c7d102232649 6c236867 .config log report info possible deadlock in uart_write
ci-upstream-kasan-gce-selinux-root 2021/07/30 00:47 upstream 7e96bf476270 c585c7b0 .config log report info possible deadlock in uart_write
ci-upstream-kasan-gce-selinux-root 2021/07/29 11:50 upstream 4010a528219e b44001ce .config log report info possible deadlock in uart_write
ci-upstream-kasan-gce-smack-root 2021/07/28 22:04 upstream 4010a528219e 9a4781d4 .config log report info possible deadlock in uart_write
ci-upstream-kasan-gce 2021/07/28 20:53 upstream 4010a528219e 9a4781d4 .config log report info possible deadlock in uart_write
ci-upstream-kasan-gce-selinux-root 2021/07/25 06:04 upstream 6498f6151825 4d1b57d4 .config log report info possible deadlock in uart_write
ci-upstream-kasan-gce 2021/07/24 10:37 upstream f0fddcec6b62 4d1b57d4 .config log report info possible deadlock in uart_write
ci-upstream-kasan-gce-smack-root 2021/07/22 15:00 upstream 3d5895cd3517 302e51de .config log report info possible deadlock in uart_write
ci-upstream-kasan-gce 2021/07/22 12:23 upstream 3d5895cd3517 302e51de .config log report info possible deadlock in uart_write
ci-upstream-kasan-gce 2021/07/22 02:40 upstream 7b6ae471e541 29c3f20f .config log report info possible deadlock in uart_write
ci-upstream-kasan-gce 2021/07/12 16:07 upstream e73f0f0ee754 a4869c92 .config log report info possible deadlock in uart_write
ci-upstream-kasan-gce-smack-root 2021/07/11 20:27 upstream 98f7fdced2e0 8f5a7b8c .config log report info possible deadlock in uart_write
ci-upstream-kasan-gce 2021/07/08 11:07 upstream 3dbdb38e2869 95793bce .config log report info possible deadlock in uart_write
ci-upstream-kasan-gce-selinux-root 2021/06/24 21:01 upstream 4a09d388f2ab 0edbbe31 .config log report info possible deadlock in uart_write
ci-upstream-kasan-gce-root 2021/06/22 21:21 upstream 0c18f29aae7c aba2b2fb .config log report info possible deadlock in uart_write
ci-upstream-kasan-gce-smack-root 2021/06/22 05:55 upstream a96bfed64c89 aba2b2fb .config log report info possible deadlock in uart_write
ci-upstream-kasan-gce 2021/06/22 01:50 upstream 13311e74253f aba2b2fb .config log report info possible deadlock in uart_write
ci-upstream-kasan-gce-selinux-root 2021/06/17 11:05 upstream 6b00bc639f1f aba2b2fb .config log report info possible deadlock in uart_write
ci-upstream-kasan-gce-smack-root 2021/06/17 00:27 upstream 6b00bc639f1f aba2b2fb .config log report info possible deadlock in uart_write
ci-upstream-kasan-gce 2021/06/14 12:56 upstream 009c9aa5be65 1ba81399 .config log report info possible deadlock in uart_write
ci-upstream-kasan-gce-selinux-root 2021/06/14 11:31 upstream 009c9aa5be65 1ba81399 .config log report info possible deadlock in uart_write
ci-upstream-kasan-gce 2021/06/13 15:24 upstream 8ecfa36cd4db 1ba81399 .config log report info possible deadlock in uart_write
ci-upstream-kasan-gce 2021/06/08 13:48 upstream 614124bea77e b718257f .config log report info possible deadlock in uart_write
ci-upstream-kasan-gce 2021/06/07 12:35 upstream 614124bea77e e59537be .config log report info possible deadlock in uart_write
ci-upstream-kasan-gce 2021/06/04 23:35 upstream 16f0596fc1d7 966a236b .config log report info possible deadlock in uart_write
ci-upstream-kasan-gce 2021/06/04 14:25 upstream f88cd3fb9df2 966a236b .config log report info possible deadlock in uart_write
ci-upstream-kasan-gce-386 2021/08/04 17:54 upstream d5ad8ec3cfb5 b97d64c9 .config log report info possible deadlock in uart_write
ci-upstream-kasan-gce-386 2021/08/02 10:38 upstream c500bee1c5b2 6c236867 .config log report info possible deadlock in uart_write
ci-upstream-kasan-gce-386 2021/07/30 19:05 upstream 764a5bc89b12 6c236867 .config log report info possible deadlock in uart_write
ci-upstream-kasan-gce-386 2021/07/30 01:50 upstream 7e96bf476270 c585c7b0 .config log report info possible deadlock in uart_write
ci-upstream-kasan-gce-386 2021/07/29 21:21 upstream 7e96bf476270 b44001ce .config log report info possible deadlock in uart_write
ci-upstream-kasan-gce-386 2021/07/26 08:37 upstream ff1176468d36 fd511809 .config log report info possible deadlock in uart_write
ci-upstream-kasan-gce-386 2021/07/24 12:12 upstream f0fddcec6b62 4d1b57d4 .config log report info possible deadlock in uart_write
ci-upstream-kasan-gce-386 2021/07/23 03:49 upstream 9bead1b58c4c bc5f1d88 .config log report info possible deadlock in uart_write
ci-upstream-kasan-gce-386 2021/07/20 16:54 upstream 8cae8cd89f05 1b201b48 .config log report info possible deadlock in uart_write
ci-upstream-kasan-gce-386 2021/07/20 15:54 upstream 8cae8cd89f05 1b201b48 .config log report info possible deadlock in uart_write
ci-upstream-kasan-gce-386 2021/07/19 05:23 upstream 2734d6c1b1a0 f115ae98 .config log report info possible deadlock in uart_write
ci-upstream-kasan-gce-386 2021/07/18 03:48 upstream ccbb22b9ab86 f115ae98 .config log report info possible deadlock in uart_write
ci-upstream-kasan-gce-386 2021/07/15 04:31 upstream 8096acd7442e b9a2f64e .config log report info possible deadlock in uart_write
ci-upstream-kasan-gce-386 2021/07/14 06:23 upstream 40226a3d96ef 484502bd .config log report info possible deadlock in uart_write
ci-upstream-kasan-gce-386 2021/07/12 06:53 upstream e73f0f0ee754 a4869c92 .config log report info possible deadlock in uart_write
ci-upstream-kasan-gce-386 2021/07/08 03:42 upstream 3dbdb38e2869 95793bce .config log report info possible deadlock in uart_write
ci-upstream-kasan-gce-386 2021/06/02 13:26 upstream 231bc5390667 0740de69 .config log report info possible deadlock in uart_write
ci-upstream-kasan-gce-386 2021/05/31 22:24 upstream c2131f7e73c9 032639db .config log report info possible deadlock in uart_write
ci-upstream-linux-next-kasan-gce-root 2021/08/05 07:47 linux-next 8d4b477da1a8 7f7bb950 .config log report info possible deadlock in uart_write
ci-upstream-linux-next-kasan-gce-root 2021/07/27 01:31 linux-next 2265c5286967 fd511809 .config log report info possible deadlock in uart_write
ci-upstream-linux-next-kasan-gce-root 2021/07/21 09:48 linux-next b1347210b01d 1b201b48 .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