syzbot


possible deadlock in console_lock_spinning_enable
Status: upstream: reported C repro on 2019/06/20 11:17
Reported-by: syzbot+3ed715090790806d8b18@syzkaller.appspotmail.com
Fix commit: c0070e1e6027 ttyprintk: Add TTY hangup callback.
Patched on: [ci-qemu-upstream ci-qemu-upstream-386 ci-qemu2-arm64 ci-qemu2-arm64-compat ci-qemu2-arm64-mte ci-qemu2-riscv64 ci-upstream-bpf-kasan-gce ci-upstream-bpf-next-kasan-gce ci-upstream-gce-leak ci-upstream-kasan-gce ci-upstream-kasan-gce-386 ci-upstream-kasan-gce-root ci-upstream-kasan-gce-selinux-root ci-upstream-kasan-gce-smack-root ci-upstream-kmsan-gce ci-upstream-kmsan-gce-386 ci-upstream-linux-next-kasan-gce-root ci-upstream-net-kasan-gce ci-upstream-net-this-kasan-gce ci2-upstream-kcsan-gce ci2-upstream-usb], missing on: [ci-qemu2-arm32]
First crash: 767d, last: 2d22h

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
duplicates (1):
Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
possible deadlock in console_unlock C done 21090 46m 1145d 21/22 closed as dup on 2021/01/21 05:31

Sample crash report:

Fix bisection attempts:
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce-smack-root 2020/01/13 20:39 upstream b3a987b0264d 34bf9440 .config log report syz C
Crashes (1650):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce-smack-root 2021/04/21 18:34 upstream 1fe5501ba1ab 95777977 .config log report syz C possible deadlock in console_lock_spinning_enable
ci-upstream-kasan-gce-smack-root 2021/04/21 06:11 upstream 1fe5501ba1ab c0ced557 .config log report syz C possible deadlock in console_lock_spinning_enable
ci-upstream-kasan-gce-smack-root 2021/04/19 21:01 upstream bf05bf16c76b 50f523d7 .config log report syz C possible deadlock in console_lock_spinning_enable
ci-upstream-kasan-gce-smack-root 2021/04/13 09:40 upstream 89698becf06d bfeda1b1 .config log report syz C possible deadlock in console_lock_spinning_enable
ci-upstream-kasan-gce-smack-root 2021/04/12 20:32 upstream d434405aaab7 bfeda1b1 .config log report syz C possible deadlock in console_lock_spinning_enable
ci-upstream-kasan-gce-smack-root 2021/04/06 14:15 upstream 0a50438c8436 6a81331a .config log report syz C possible deadlock in console_lock_spinning_enable
ci-upstream-kasan-gce-smack-root 2021/04/05 16:50 upstream e49d033bddf5 6a81331a .config log report syz C possible deadlock in console_lock_spinning_enable
ci-upstream-kasan-gce-smack-root 2021/04/04 13:44 upstream 2023a53bdf41 6a81331a .config log report syz C possible deadlock in console_lock_spinning_enable
ci-upstream-kasan-gce-smack-root 2021/03/20 09:39 upstream 1c273e10bc0c 3d01c4de .config log report syz C possible deadlock in console_lock_spinning_enable
ci-upstream-kasan-gce-smack-root 2021/02/18 02:17 upstream f40ddce88593 14052202 .config log report syz C possible deadlock in console_lock_spinning_enable
ci-upstream-kasan-gce-smack-root 2021/02/16 15:42 upstream f40ddce88593 98682e5e .config log report syz C possible deadlock in console_lock_spinning_enable
ci-upstream-kasan-gce-smack-root 2021/02/10 16:12 upstream e0756cfc7d7c 2bd9619f .config log report syz C possible deadlock in console_lock_spinning_enable
ci-upstream-kasan-gce-smack-root 2021/01/14 22:11 upstream 65f0d2414b70 65a7a854 .config log report syz C
ci-upstream-kasan-gce-smack-root 2020/12/06 17:36 upstream 33256ce19411 f12ba0c5 .config log report syz C
ci-upstream-kasan-gce-smack-root 2020/09/25 22:28 upstream 171d4ff79f96 4a006f63 .config log report syz C
ci-upstream-kasan-gce-smack-root 2020/09/13 02:25 upstream 729e3d091984 ce441f06 .config log report syz C
ci-upstream-kasan-gce-smack-root 2020/09/12 18:47 upstream 729e3d091984 ce441f06 .config log report syz C
ci-upstream-kasan-gce-smack-root 2020/09/11 11:58 upstream 581cb3a26baf adfb8b4e .config log report syz C
ci-upstream-kasan-gce-smack-root 2020/09/08 03:27 upstream f4d51dffc6c0 abf9ba4f .config log report syz C
ci-upstream-kasan-gce-smack-root 2020/09/06 04:21 upstream 9322c47b21b9 abf9ba4f .config log report syz C
ci-upstream-kasan-gce-smack-root 2020/09/02 07:54 upstream b765a32a2e91 abf9ba4f .config log report syz C
ci-upstream-kasan-gce-smack-root 2020/08/31 00:47 upstream 1127b219ce94 d5a3ae1f .config log report syz C
ci-upstream-kasan-gce-smack-root 2020/08/27 04:13 upstream 15bc20c6af4c 318430cb .config log report syz C
ci-upstream-kasan-gce-smack-root 2020/08/26 13:55 upstream 2ac69819ba9e 318430cb .config log report syz C
ci-upstream-kasan-gce-smack-root 2020/08/26 09:46 upstream abb3438d69fb 344da168 .config log report syz C
ci-upstream-kasan-gce-smack-root 2020/08/25 09:01 upstream 6a9dc5fd6170 344da168 .config log report syz C
ci-upstream-kasan-gce-smack-root 2020/08/25 00:43 upstream d012a7190fc1 67b599d1 .config log report syz C
ci-upstream-kasan-gce-smack-root 2020/08/20 01:13 upstream 18445bf405cb 94b45706 .config log report syz C
ci-upstream-kasan-gce-smack-root 2020/08/14 23:00 upstream a1d21081a60d 424dd8e7 .config log report syz C
ci-upstream-kasan-gce-smack-root 2020/08/14 15:45 upstream a1d21081a60d 424dd8e7 .config log report syz C
ci-upstream-kasan-gce-smack-root 2020/07/28 21:26 upstream 92ed30191993 cb93dc6a .config log report syz C
ci-upstream-kasan-gce-smack-root 2020/07/27 21:18 upstream 92ed30191993 cb93dc6a .config log report syz C
ci-upstream-kasan-gce-smack-root 2020/07/05 06:55 upstream 7cc2a8ea1048 51095195 .config log report syz C
ci-upstream-kasan-gce-smack-root 2020/04/17 01:54 upstream 9786cab67457 c743fcb3 .config log report syz C
ci-upstream-kasan-gce-smack-root 2020/04/16 16:29 upstream 00086336a8d9 c743fcb3 .config log report syz C
ci-upstream-kasan-gce-smack-root 2020/04/16 00:39 upstream 8632e9b5645b 3f3c5574 .config log report syz C
ci-upstream-kasan-gce-smack-root 2020/04/15 21:30 upstream 8632e9b5645b 3f3c5574 .config log report syz C
ci-upstream-kasan-gce-smack-root 2020/04/10 18:23 upstream c0cc271173b2 a8c6a3f8 .config log report syz C
ci-upstream-kasan-gce-smack-root 2020/03/11 12:24 upstream e94148454103 35f53e45 .config log report syz C
ci-upstream-kasan-gce-smack-root 2020/02/22 03:04 upstream b0dd1eb220c0 2ffa6679 .config log report syz C
ci-upstream-kasan-gce-smack-root 2019/06/20 23:33 upstream abf02e2964b3 34bf9440 .config log report syz C
ci-upstream-kasan-gce-smack-root 2019/06/19 15:26 upstream bed3c0d84e7e 34bf9440 .config log report syz C
ci-upstream-kasan-gce-smack-root 2021/07/22 21:11 upstream 3d5895cd3517 302e51de .config log report info possible deadlock in console_lock_spinning_enable
ci-upstream-kasan-gce-smack-root 2021/07/11 15:25 upstream 3dbdb38e2869 8f5a7b8c .config log report info possible deadlock in console_lock_spinning_enable
ci-upstream-kasan-gce-smack-root 2021/07/11 06:44 upstream 3dbdb38e2869 8f5a7b8c .config log report info possible deadlock in console_lock_spinning_enable
ci-upstream-kasan-gce-smack-root 2021/06/28 20:00 upstream 62fb9874f5da 9d2ab5df .config log report info possible deadlock in console_lock_spinning_enable
ci-upstream-kasan-gce-smack-root 2021/06/17 21:55 upstream 70585216fe77 aba2b2fb .config log report info possible deadlock in console_lock_spinning_enable
ci-upstream-kasan-gce-smack-root 2021/06/04 05:00 upstream f88cd3fb9df2 0740de69 .config log report info possible deadlock in console_lock_spinning_enable
ci-upstream-kasan-gce-smack-root 2021/04/30 21:19 upstream d2b6f8a17919 77e2b668 .config log report info possible deadlock in console_lock_spinning_enable
ci-upstream-kasan-gce-smack-root 2021/04/30 12:26 upstream d2b6f8a17919 77e2b668 .config log report info possible deadlock in console_lock_spinning_enable
ci-upstream-kasan-gce-smack-root 2021/04/30 06:04 upstream d2b6f8a17919 77e2b668 .config log report info possible deadlock in console_lock_spinning_enable
ci-upstream-kasan-gce-smack-root 2021/04/30 04:15 upstream d2b6f8a17919 77e2b668 .config log report info possible deadlock in console_lock_spinning_enable
ci-upstream-kasan-gce-smack-root 2021/04/26 22:50 upstream 9f4ad9e425a1 805b5003 .config log report info possible deadlock in console_lock_spinning_enable
ci-upstream-kasan-gce-smack-root 2021/04/26 11:00 upstream d2d09fbe33f8 2a82f1b3 .config log report info possible deadlock in console_lock_spinning_enable
ci-upstream-kasan-gce-smack-root 2021/04/26 05:38 upstream d2d09fbe33f8 2a82f1b3 .config log report info possible deadlock in console_lock_spinning_enable
ci-upstream-kasan-gce-smack-root 2021/04/25 06:54 upstream 8db5efb83fa9 17f0b706 .config log report info possible deadlock in console_lock_spinning_enable
ci-upstream-kasan-gce-smack-root 2021/04/25 02:55 upstream 8db5efb83fa9 17f0b706 .config log report info possible deadlock in console_lock_spinning_enable
ci-upstream-kasan-gce-smack-root 2021/04/24 06:07 upstream e77a830c8297 17f0b706 .config log report info possible deadlock in console_lock_spinning_enable
ci-upstream-kasan-gce-smack-root 2021/04/23 19:42 upstream 18a3c5f7abfd 17f0b706 .config log report info possible deadlock in console_lock_spinning_enable
ci-upstream-kasan-gce-smack-root 2021/04/23 14:57 upstream 18a3c5f7abfd 17f0b706 .config log report info possible deadlock in console_lock_spinning_enable
ci-upstream-kasan-gce-smack-root 2021/04/22 19:53 upstream 16fc44d6387e 33c28d03 .config log report info possible deadlock in console_lock_spinning_enable
ci-upstream-kasan-gce-smack-root 2021/04/22 06:32 upstream 16fc44d6387e 2bc8999a .config log report info possible deadlock in console_lock_spinning_enable
ci-upstream-kasan-gce-smack-root 2021/04/22 02:01 upstream 16fc44d6387e 2bc8999a .config log report info possible deadlock in console_lock_spinning_enable
ci-upstream-kasan-gce-smack-root 2021/04/22 00:35 upstream 16fc44d6387e 2bc8999a .config log report info possible deadlock in console_lock_spinning_enable
ci-upstream-kasan-gce-smack-root 2021/04/21 14:49 upstream 1fe5501ba1ab 95777977 .config log report info possible deadlock in console_lock_spinning_enable
ci-upstream-kasan-gce-smack-root 2021/04/20 06:08 upstream 7af08140979a 4285c989 .config log report info possible deadlock in console_lock_spinning_enable
ci-upstream-kasan-gce-smack-root 2021/04/20 04:19 upstream 7af08140979a 4285c989 .config log report info possible deadlock in console_lock_spinning_enable
ci-upstream-kasan-gce-smack-root 2021/04/19 19:47 upstream bf05bf16c76b 50f523d7 .config log report info possible deadlock in console_lock_spinning_enable
ci-upstream-kasan-gce-smack-root 2021/04/19 18:25 upstream bf05bf16c76b 50f523d7 .config log report info possible deadlock in console_lock_spinning_enable
ci-upstream-kasan-gce-smack-root 2021/04/16 11:24 upstream 7e25f40eab52 c59079a6 .config log report info possible deadlock in console_lock_spinning_enable
ci-upstream-kasan-gce-smack-root 2021/04/13 00:52 upstream d434405aaab7 bfeda1b1 .config log report info possible deadlock in console_lock_spinning_enable
ci-upstream-kasan-gce-smack-root 2021/04/11 18:04 upstream 52e44129fba5 bfeda1b1 .config log report info possible deadlock in console_lock_spinning_enable
ci-upstream-kasan-gce-smack-root 2021/04/11 13:08 upstream 52e44129fba5 bfeda1b1 .config log report info possible deadlock in console_lock_spinning_enable
ci-upstream-kasan-gce-smack-root 2021/04/10 18:15 upstream d4961772226d bfeda1b1 .config log report info possible deadlock in console_lock_spinning_enable
ci-upstream-kasan-gce-smack-root 2021/04/10 14:56 upstream d4961772226d bfeda1b1 .config log report info possible deadlock in console_lock_spinning_enable
ci-upstream-kasan-gce-smack-root 2021/04/10 03:02 upstream 17e7124aad76 6a81331a .config log report info possible deadlock in console_lock_spinning_enable
ci-upstream-kasan-gce-smack-root 2021/04/08 06:07 upstream 3a22981230f9 6a81331a .config log report info possible deadlock in console_lock_spinning_enable
ci-upstream-kasan-gce-smack-root 2021/04/08 03:41 upstream 3a22981230f9 6a81331a .config log report info possible deadlock in console_lock_spinning_enable
ci-upstream-kasan-gce-smack-root 2021/04/07 20:43 upstream 2d743660786e 6a81331a .config log report info possible deadlock in console_lock_spinning_enable
ci-upstream-kasan-gce-smack-root 2021/04/07 11:42 upstream 2d743660786e 6a81331a .config log report info possible deadlock in console_lock_spinning_enable
ci-upstream-kasan-gce-smack-root 2021/04/07 06:51 upstream 2d743660786e 6a81331a .config log report info possible deadlock in console_lock_spinning_enable
ci-upstream-kasan-gce-smack-root 2021/04/07 00:01 upstream 0a50438c8436 6a81331a .config log report info possible deadlock in console_lock_spinning_enable
ci-upstream-kasan-gce-smack-root 2021/04/06 22:58 upstream 0a50438c8436 6a81331a .config log report info possible deadlock in console_lock_spinning_enable
ci-upstream-kasan-gce-smack-root 2021/04/06 05:09 upstream 0a50438c8436 6a81331a .config log report info possible deadlock in console_lock_spinning_enable
ci-upstream-kasan-gce-smack-root 2021/04/05 13:36 upstream e49d033bddf5 6a81331a .config log report info possible deadlock in console_lock_spinning_enable
ci-upstream-kasan-gce-smack-root 2021/04/05 12:11 upstream e49d033bddf5 6a81331a .config log report info possible deadlock in console_lock_spinning_enable
ci-upstream-kasan-gce-smack-root 2021/04/05 02:36 upstream e49d033bddf5 6a81331a .config log report info possible deadlock in console_lock_spinning_enable
ci-upstream-kasan-gce-smack-root 2021/04/04 18:54 upstream 2023a53bdf41 6a81331a .config log report info possible deadlock in console_lock_spinning_enable
ci-upstream-kasan-gce-smack-root 2021/04/04 12:30 upstream 2023a53bdf41 6a81331a .config log report info possible deadlock in console_lock_spinning_enable
ci-upstream-kasan-gce-smack-root 2021/04/04 06:40 upstream 57fbdb15ec42 6a81331a .config log report info possible deadlock in console_lock_spinning_enable
ci-upstream-kasan-gce-smack-root 2021/04/01 02:41 upstream 5e46d1b78a03 6a81331a .config log report info possible deadlock in console_lock_spinning_enable
ci-upstream-kasan-gce-smack-root 2021/03/31 02:32 upstream 2bb25b3a748a 6a81331a .config log report info possible deadlock in console_lock_spinning_enable
ci-upstream-kasan-gce-smack-root 2021/01/16 23:04 upstream 1d94330a437a 65a7a854 .config log report info