syzbot


possible deadlock in console_unlock
Status: closed as dup on 2021/01/21 05:31
Reported-by: syzbot+43e93968b964e369db0b@syzkaller.appspotmail.com
Fix commit: c0070e1e6027 ttyprintk: Add TTY hangup callback.
First crash: 1277d, last: 24d

Cause bisection: introduced by (bisect log) :
commit b6da31b2c07c46f2dcad1d86caa835227a16d9ff
Author: DaeRyong Jeong <threeearcat@gmail.com>
Date: Mon Apr 30 15:27:04 2018 +0000

  tty: Fix data race in tty_insert_flip_string_fixed_flag

Crash: possible deadlock in console_unlock (log)
Repro: C syz .config
Duplicate of (1):
Title Repro Cause bisect Fix bisect Count Last Reported
possible deadlock in console_lock_spinning_enable C done 1693 25d 898d
duplicates (1):
Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
possible deadlock in vprintk_emit C 1433 677d 1275d 0/22 closed as dup on 2018/06/08 07:50
similar bugs (4):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.19 possible deadlock in console_unlock C 5119 15h37m 968d 0/1 upstream: reported C repro on 2019/04/11 15:05
linux-4.14 possible deadlock in console_unlock C 5087 1h42m 963d 0/1 upstream: reported C repro on 2019/04/16 05:13
upstream possible deadlock in console_unlock (2) C error 119 22m 20d 0/22 upstream: reported C repro on 2021/11/14 09:17
android-414 possible deadlock in console_unlock C 5 1003d 968d 0/1 public: reported C repro on 2019/04/12 00:01
Patch testing requests:
Created Duration User Patch Repo Result
2021/04/14 23:52 16m penguin-kernel@i-love.sakura.ne.jp patch upstream OK
2021/04/14 12:42 16m penguin-kernel@i-love.sakura.ne.jp patch upstream OK
2021/04/07 09:44 18m penguin-kernel@i-love.sakura.ne.jp patch upstream OK
2021/04/07 04:16 13m penguin-kernel@i-love.sakura.ne.jp patch upstream report log
2021/04/07 00:29 15m penguin-kernel@i-love.sakura.ne.jp patch upstream report log
2021/04/03 01:59 18m penguin-kernel@i-love.sakura.ne.jp patch upstream OK
2021/04/02 15:27 11m penguin-kernel@i-love.sakura.ne.jp patch upstream report log

Sample crash report:

Crashes (22098):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce-root 2021/04/20 19:44 upstream 7af08140979a c0ced557 .config log report syz C possible deadlock in console_unlock
ci-upstream-kasan-gce-root 2021/04/20 04:17 upstream 7af08140979a 4285c989 .config log report syz C possible deadlock in console_unlock
ci-upstream-kasan-gce-root 2021/04/19 08:25 upstream bf05bf16c76b 7e2b734b .config log report syz C possible deadlock in console_unlock
ci-upstream-kasan-gce-root 2021/04/13 12:30 upstream 89698becf06d bfeda1b1 .config log report syz C possible deadlock in console_unlock
ci-upstream-kasan-gce-root 2021/04/13 06:17 upstream 89698becf06d bfeda1b1 .config log report syz C possible deadlock in console_unlock
ci-upstream-kasan-gce-selinux-root 2021/04/09 06:30 upstream 4fa56ad0d12e 6a81331a .config log report syz C possible deadlock in console_unlock
ci-upstream-kasan-gce-root 2021/04/06 09:07 upstream 0a50438c8436 6a81331a .config log report syz C possible deadlock in console_unlock
ci-upstream-kasan-gce-root 2021/04/05 09:37 upstream e49d033bddf5 6a81331a .config log report syz C possible deadlock in console_unlock
ci-upstream-kasan-gce-root 2021/04/04 03:33 upstream 57fbdb15ec42 6a81331a .config log report syz C possible deadlock in console_unlock
ci-upstream-kasan-gce-selinux-root 2021/03/25 12:30 upstream 4ee998b0ef8b 607e3baf .config log report syz C possible deadlock in console_unlock
ci-upstream-kasan-gce-selinux-root 2021/02/23 13:28 upstream a99163e9e708 c26fb06b .config log report syz C possible deadlock in console_unlock
ci-upstream-kasan-gce-root 2021/02/19 01:20 upstream f40ddce88593 14052202 .config log report syz C possible deadlock in console_unlock
ci-qemu-upstream 2021/02/15 13:41 upstream f40ddce88593 98682e5e .config log report syz C possible deadlock in console_unlock
ci-upstream-kasan-gce-selinux-root 2021/02/14 08:12 upstream ac30d8ce28d6 98682e5e .config log report syz C possible deadlock in console_unlock
ci-upstream-kasan-gce-root 2021/02/11 05:50 upstream 291009f656e8 a52ee10a .config log report syz C possible deadlock in console_unlock
ci-qemu-upstream 2021/02/07 09:42 upstream 825b5991a46e 0655e081 .config log report syz C possible deadlock in console_unlock
ci-qemu-upstream 2021/02/07 07:23 upstream 825b5991a46e 0655e081 .config log report syz C possible deadlock in console_unlock
ci-upstream-kasan-gce-root 2021/02/02 11:02 upstream 88bb507a74ea 19e09687 .config log report syz C possible deadlock in console_unlock
ci-upstream-kasan-gce-root 2021/02/01 23:59 upstream 1048ba83fb1c e6b95f32 .config log report syz C possible deadlock in console_unlock
ci-upstream-linux-next-kasan-gce-root 2021/04/13 00:34 linux-next 5df924d19629 bfeda1b1 .config log report syz C possible deadlock in console_unlock
ci-upstream-linux-next-kasan-gce-root 2021/04/05 15:57 linux-next 454c576c3f5e 6a81331a .config log report syz C possible deadlock in console_unlock
ci-upstream-linux-next-kasan-gce-root 2021/04/04 04:42 linux-next 454c576c3f5e 6a81331a .config log report syz C possible deadlock in console_unlock
ci-upstream-linux-next-kasan-gce-root 2021/03/30 11:59 linux-next 931294922e65 6a81331a .config log report syz C possible deadlock in console_unlock
ci-upstream-linux-next-kasan-gce-root 2021/03/30 03:43 linux-next 931294922e65 6a81331a .config log report syz C possible deadlock in console_unlock
ci-upstream-kasan-gce-selinux-root 2021/01/08 16:13 upstream f5e6c330254a c104d4a3 .config log report syz C
ci-upstream-kasan-gce-root 2021/01/07 22:37 upstream 71c061d24438 c104d4a3 .config log report syz C
ci-upstream-kasan-gce-root 2020/12/30 12:53 upstream 139711f033f6 0fa352f2 .config log report syz C
ci-upstream-kasan-gce-selinux-root 2020/12/22 13:24 upstream 8653b778e454 04201c06 .config log report syz C
ci-qemu-upstream 2020/12/11 06:50 upstream 9fca90cf2892 f900b48c .config log report syz C
ci-upstream-kasan-gce-selinux-root 2020/10/05 14:43 upstream 549738f15da0 5ef9c291 .config log report syz C
ci-upstream-kasan-gce-root 2020/10/04 05:53 upstream 22fbc037cd32 1a3f9408 .config log report syz C
ci-upstream-kasan-gce-selinux-root 2020/09/24 20:28 upstream c9c9e6a49f89 54289b08 .config log report syz C
ci-upstream-kasan-gce-root 2020/09/24 10:00 upstream c9c9e6a49f89 54289b08 .config log report syz C
ci-upstream-kasan-gce-root 2018/06/07 04:43 upstream 0ad39cb3d70f e0e534c6 .config log report syz C
ci-upstream-linux-next-kasan-gce-root 2021/01/01 12:16 linux-next d7a03a44a5e9 79264ae3 .config log report syz C
ci-upstream-linux-next-kasan-gce-root 2020/12/11 04:48 linux-next 14240d4c5b25 f900b48c .config log report syz C
ci-upstream-linux-next-kasan-gce-root 2020/11/02 12:56 linux-next b49976d8ef64 8bc4594f .config log report syz C
ci-upstream-linux-next-kasan-gce-root 2020/10/08 05:12 linux-next 8b787da7ba8c 1880b4a9 .config log report syz C
ci-upstream-linux-next-kasan-gce-root 2020/10/06 09:50 linux-next 2172e358cd17 1880b4a9 .config log report syz C
ci-upstream-linux-next-kasan-gce-root 2020/09/28 02:01 linux-next d1d2220c7f39 5dd8aee8 .config log report syz C
ci-upstream-linux-next-kasan-gce-root 2020/09/27 21:11 linux-next d1d2220c7f39 5dd8aee8 .config log report syz C
ci-upstream-linux-next-kasan-gce-root 2020/09/26 07:59 linux-next d1d2220c7f39 4a006f63 .config log report syz C
ci-upstream-linux-next-kasan-gce-root 2020/09/25 11:32 linux-next d1d2220c7f39 54289b08 .config log report syz C
ci-upstream-linux-next-kasan-gce-root 2021/04/20 21:00 linux-next 1216f02e46a4 c0ced557 .config log report syz possible deadlock in console_unlock
ci-upstream-kasan-gce-386 2018/06/06 12:05 upstream af6c5d5e01ad 41f9540d .config log report syz
ci-upstream-kasan-gce 2021/11/09 22:38 upstream d2f38a3c6507 59bcaf9a .config log report info possible deadlock in console_unlock
ci-upstream-kasan-gce-selinux-root 2021/11/09 10:06 upstream e851dfae4371 8ab17e57 .config log report info possible deadlock in console_unlock
ci-upstream-kasan-gce-selinux-root 2021/11/08 10:18 upstream 6b75d88fa81b 4c1be0be .config log report info possible deadlock in console_unlock
ci-qemu-upstream 2021/11/08 08:55 upstream 6b75d88fa81b 4c1be0be .config log report info possible deadlock in console_unlock
ci-upstream-kasan-gce 2021/11/07 21:31 upstream b5013d084e03 4c1be0be .config log report info possible deadlock in console_unlock
ci-upstream-kasan-gce-root 2021/11/07 20:24 upstream b5013d084e03 4c1be0be .config log report info possible deadlock in console_unlock
ci-upstream-kasan-gce-root 2021/11/07 17:02 upstream b5013d084e03 4c1be0be .config log report info possible deadlock in console_unlock
ci-upstream-kasan-gce-selinux-root 2021/11/07 14:27 upstream b5013d084e03 4c1be0be .config log report info possible deadlock in console_unlock
ci-qemu-upstream 2021/11/07 09:06 upstream 512b7931ad05 4c1be0be .config log report info possible deadlock in console_unlock
ci-upstream-kasan-gce 2021/11/07 06:48 upstream 512b7931ad05 4c1be0be .config log report info possible deadlock in console_unlock
ci-upstream-kasan-gce-selinux-root 2021/11/06 07:45 upstream fe91c4725aee 4c1be0be .config log report info possible deadlock in console_unlock
ci-upstream-kasan-gce-root 2021/11/06 04:01 upstream d4439a1189f9 4c1be0be .config log report info possible deadlock in console_unlock
ci-upstream-kasan-gce-root 2021/11/06 02:56 upstream d4439a1189f9 4c1be0be .config log report info possible deadlock in console_unlock
ci-upstream-kasan-gce 2021/11/05 18:04 upstream d4439a1189f9 4c1be0be .config log report info possible deadlock in console_unlock
ci-upstream-kasan-gce-root 2021/11/05 16:48 upstream d4439a1189f9 4c1be0be .config log report info possible deadlock in console_unlock
ci-upstream-kasan-gce-root 2021/11/05 15:30 upstream d4439a1189f9 4c1be0be .config log report info possible deadlock in console_unlock
ci-qemu-upstream 2021/11/04 23:45 upstream 7ddb58cb0eca 4c1be0be .config log report info possible deadlock in console_unlock
ci-upstream-kasan-gce 2021/11/04 08:14 upstream ce840177930f 4c1be0be .config log report info possible deadlock in console_unlock
ci-qemu2-arm32 2021/11/10 00:11 upstream bf152b0b41dc 59bcaf9a .config log report info possible deadlock in console_unlock
ci-qemu2-arm32 2021/11/09 21:27 upstream bf152b0b41dc 59bcaf9a .config log report info possible deadlock in console_unlock
ci-qemu-upstream-386 2021/11/09 18:42 upstream d2f38a3c6507 59bcaf9a .config log report info possible deadlock in console_unlock
ci-qemu2-arm32 2021/11/09 17:27 upstream bf152b0b41dc 59bcaf9a .config log report info possible deadlock in console_unlock
ci-qemu2-arm32 2021/11/09 14:54 upstream bf152b0b41dc 59bcaf9a .config log report info possible deadlock in console_unlock
ci-qemu2-arm32 2021/11/09 11:12 upstream bf152b0b41dc 8ab17e57 .config log report info possible deadlock in console_unlock
ci-qemu-upstream-386 2021/11/09 05:59 upstream e851dfae4371 8ab17e57 .config log report info possible deadlock in console_unlock
ci-upstream-kasan-gce-386 2021/11/09 05:19 upstream e851dfae4371 8ab17e57 .config log report info possible deadlock in console_unlock
ci-qemu2-arm32 2021/11/09 03:38 upstream bf152b0b41dc 8ab17e57 .config log report info possible deadlock in console_unlock
ci-qemu2-arm32 2021/11/09 02:17 upstream bf152b0b41dc 8ab17e57 .config log report info possible deadlock in console_unlock
ci-qemu2-arm32 2021/11/08 22:41 upstream bf152b0b41dc d29682f1 .config log report info possible deadlock in console_unlock
ci-qemu2-arm32 2021/11/08 21:28 upstream bf152b0b41dc d29682f1 .config log report info possible deadlock in console_unlock
ci-qemu2-arm32 2021/11/08 15:50 upstream bf152b0b41dc d29682f1 .config log report info possible deadlock in console_unlock
ci-qemu2-arm32 2021/11/08 14:27 upstream bf152b0b41dc d29682f1 .config log report info possible deadlock in console_unlock
ci-qemu2-arm32 2021/11/08 05:36 upstream bf152b0b41dc 4c1be0be .config log report info possible deadlock in console_unlock
ci-qemu2-arm32 2021/11/07 19:15 upstream bf152b0b41dc 4c1be0be .config log report info possible deadlock in console_unlock
ci-qemu2-arm32 2021/11/07 12:17 upstream bf152b0b41dc 4c1be0be .config log report info possible deadlock in console_unlock
ci-qemu2-arm32 2021/11/07 10:14 upstream bf152b0b41dc 4c1be0be .config log report info possible deadlock in console_unlock
ci-qemu2-arm32 2021/11/07 03:23 upstream bf152b0b41dc 4c1be0be .config log report info possible deadlock in console_unlock
ci-qemu2-arm32 2021/11/07 02:14 upstream bf152b0b41dc 4c1be0be .config log report info possible deadlock in console_unlock
ci-qemu-upstream-386 2021/11/06 18:27 upstream fe91c4725aee 4c1be0be .config log report info possible deadlock in console_unlock
ci-qemu2-arm32 2021/11/06 16:53 upstream bf152b0b41dc 4c1be0be .config log report info possible deadlock in console_unlock
ci-qemu2-arm32 2021/11/06 15:16 upstream bf152b0b41dc 4c1be0be .config log report info possible deadlock in console_unlock
ci-qemu2-arm32 2021/11/06 10:37 upstream bf152b0b41dc 4c1be0be .config log report info possible deadlock in console_unlock
ci-qemu2-arm32 2021/11/06 09:01 upstream bf152b0b41dc 4c1be0be .config log report info possible deadlock in console_unlock
ci-qemu2-arm32 2021/11/06 05:44 upstream bf152b0b41dc 4c1be0be .config log report info possible deadlock in console_unlock
ci-qemu-upstream-386 2021/11/05 23:37 upstream fe91c4725aee 4c1be0be .config log report info possible deadlock in console_unlock
ci-qemu2-arm32 2021/11/05 19:28 upstream bf152b0b41dc 4c1be0be .config log report info possible deadlock in console_unlock
ci-qemu2-arm32 2021/11/05 03:07 upstream bf152b0b41dc 4c1be0be .config log report info possible deadlock in console_unlock
ci-qemu-upstream-386 2021/11/05 01:16 upstream 7ddb58cb0eca 4c1be0be .config log report info possible deadlock in console_unlock
ci-qemu2-arm32 2021/11/04 19:05 upstream bf152b0b41dc 4c1be0be .config log report info possible deadlock in console_unlock
ci-qemu2-arm32 2021/11/04 15:50 upstream bf152b0b41dc 4c1be0be .config log report info possible deadlock in console_unlock
ci-qemu2-arm32 2021/11/04 03:05 upstream bf152b0b41dc 4c1be0be .config log report info possible deadlock in console_unlock
ci-qemu2-arm32 2021/11/04 01:37 upstream bf152b0b41dc 4c1be0be .config log report info possible deadlock in console_unlock
ci-qemu2-arm32 2021/11/03 23:18 upstream bf152b0b41dc 4c1be0be .config log report info possible deadlock in console_unlock
ci-qemu2-arm64-compat 2021/04/27 07:09 upstream 9f4ad9e425a1 8ee2dea6 .config log report info possible deadlock in console_unlock
ci-qemu2-arm64 2021/04/26 09:28 upstream 9f4ad9e425a1 2a82f1b3 .config log report info possible deadlock in console_unlock
ci-upstream-linux-next-kasan-gce-root 2021/11/09 19:52 linux-next c8109c2ba35e 59bcaf9a .config log report info possible deadlock in console_unlock
ci-upstream-linux-next-kasan-gce-root 2021/11/08 20:26 linux-next e844ee04dee0 d29682f1 .config log report info possible deadlock in console_unlock
ci-upstream-linux-next-kasan-gce-root 2021/11/07 16:00 linux-next 6a37ebbe07bf 4c1be0be .config log report info possible deadlock in console_unlock
ci-upstream-linux-next-kasan-gce-root 2021/11/07 00:08 linux-next 6a37ebbe07bf 4c1be0be .config log report info possible deadlock in console_unlock
ci-upstream-linux-next-kasan-gce-root 2021/11/06 22:07 linux-next 6a37ebbe07bf 4c1be0be .config log report info possible deadlock in console_unlock
ci-qemu2-riscv64 2021/11/05 10:56 git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux.git fixes 64a19591a293 4c1be0be .config log report info possible deadlock in console_unlock
ci-upstream-kasan-gce-selinux-root 2021/01/17 13:47 upstream 0da0a8a0a0e1 813be542 .config log report info
ci-upstream-kasan-gce-smack-root 2019/06/18 20:22 upstream 29f785ff76b6 e3f76baa .config log report
ci-upstream-net-this-kasan-gce 2019/02/08 06:03 net ec7fd009e87c aa4feb03 .config log report
ci-upstream-bpf-kasan-gce 2019/02/01 06:20 bpf f01c2803873e 0e8ea0a3 .config log report
ci-upstream-bpf-next-kasan-gce 2019/09/25 01:43 bpf-next b41dae061bbd 0942eab8 .config log report
ci-upstream-net-kasan-gce 2019/05/03 02:19 net-next 26f146ed971c e9039493 .config log report