syzbot


possible deadlock in pty_write
Status: upstream: reported C repro on 2020/02/03 21:58
Reported-by: syzbot+3118a33395397bb6b0ca@syzkaller.appspotmail.com
First crash: 718d, last: 19h19m

Cause bisection: introduced by (bisect log) :
commit 65b27995a4ab8fc51b4adc6b4dcdca20f7a595bb
Author: Heiner Kallweit <hkallweit1@gmail.com>
Date: Mon Aug 12 21:52:19 2019 +0000

  net: phy: let phy_speed_down/up support speeds >1Gbps

Crash: general protection fault in batadv_iv_ogm_queue_add (log)
Repro: C syz .config

Fix bisection: the fix commit could be any of (bisect log):
  ccaaaf6fe5a5 Merge tag 'mpx-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/daveh/x86-mpx
  4d7620341eda Merge tag 'kbuild-fixes-v5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
similar bugs (2):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.14 possible deadlock in pty_write C 202 1d18h 718d 0/1 upstream: reported C repro on 2020/02/01 01:19
linux-4.19 possible deadlock in pty_write C 137 18d 717d 0/1 upstream: reported C repro on 2020/02/02 11:26
Patch testing requests:
Created Duration User Patch Repo Result
2020/10/11 14:02 10m rkovhaev@gmail.com upstream report log
2020/09/10 20:07 10m rkovhaev@gmail.com git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git stable report log
2020/09/08 14:55 10m rkovhaev@gmail.com git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 205d300aea75 report log
2020/08/22 16:07 10m rkovhaev@gmail.com upstream report log

Sample crash report:

Crashes (148):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce-root 2020/02/01 03:01 upstream ccaaaf6fe5a5 c30117b2 .config log report syz C
ci-upstream-kasan-gce-root 2022/01/19 01:27 upstream 99613159ad74 731a2d23 .config log report info possible deadlock in pty_write
ci-qemu-upstream 2022/01/18 03:12 upstream 0c947b893d69 731a2d23 .config log report info possible deadlock in pty_write
ci-upstream-kasan-gce-root 2022/01/16 15:19 upstream d0a231f01e5b 723cfaf0 .config log report info possible deadlock in pty_write
ci-upstream-kasan-gce 2022/01/14 14:23 upstream fb3b0673b7d5 b8d780ab .config log report info possible deadlock in pty_write
ci-upstream-kasan-gce-root 2022/01/13 02:46 upstream f079ab01b560 44d1319a .config log report info possible deadlock in pty_write
ci-upstream-kasan-gce-root 2022/01/12 01:37 upstream 6f38be8f2ccd 44d1319a .config log report info possible deadlock in pty_write
ci-upstream-kasan-gce-root 2022/01/07 06:16 upstream b2b436ec0205 6acc789a .config log report info possible deadlock in pty_write
ci-upstream-kasan-gce-root 2022/01/06 07:11 upstream 49ef78e59b07 6acc789a .config log report info possible deadlock in pty_write
ci-upstream-kasan-gce 2021/12/29 09:21 upstream ecf71de775a0 76c8cf06 .config log report info possible deadlock in pty_write
ci-upstream-kasan-gce-root 2021/12/25 02:39 upstream b927dfc67d05 6caa12e4 .config log report info possible deadlock in pty_write
ci-upstream-kasan-gce-selinux-root 2021/12/23 02:36 upstream 3f066e882bf1 6caa12e4 .config log report info possible deadlock in pty_write
ci-upstream-kasan-gce-root 2021/12/18 19:13 upstream 9eaa88c7036e 44068e19 .config log report info possible deadlock in pty_write
ci-upstream-kasan-gce 2021/12/17 21:58 upstream 6441998e2e37 44068e19 .config log report info possible deadlock in pty_write
ci-upstream-kasan-gce 2021/12/14 01:58 upstream 5472f14a3742 5d14b1ea .config log report info possible deadlock in pty_write
ci-upstream-kasan-gce 2021/12/11 01:30 upstream b8a98b6bf66a 49ca1f59 .config log report info possible deadlock in pty_write
ci-qemu-upstream 2021/12/06 18:37 upstream 0fcfb00b28c0 579a8754 .config log report info possible deadlock in pty_write
ci-qemu-upstream 2021/12/05 02:26 upstream bbef3c7a63d2 a617004c .config log report info possible deadlock in pty_write
ci-qemu-upstream 2021/12/03 22:00 upstream 5f58da2befa5 c7c20675 .config log report info possible deadlock in pty_write
ci-qemu-upstream 2021/12/03 20:24 upstream 5f58da2befa5 c7c20675 .config log report info possible deadlock in pty_write
ci-qemu-upstream 2021/11/29 23:18 upstream d58071a8a76d d0830353 .config log report info possible deadlock in pty_write
ci-upstream-kasan-gce-root 2021/11/27 08:23 upstream c5c17547b778 63eeac02 .config log report info possible deadlock in pty_write
ci-upstream-kasan-gce 2021/11/22 08:22 upstream 40c93d7fff6f 4eb20a4e .config log report info possible deadlock in pty_write
ci-qemu-upstream 2021/11/19 05:34 upstream 6fdf886424cf 31a30fc0 .config log report info possible deadlock in pty_write
ci-qemu-upstream 2021/11/17 22:52 upstream ee1703cda8dc cafff8b6 .config log report info possible deadlock in pty_write
ci-qemu-upstream 2021/11/11 05:23 upstream 89d714ab6043 75b04091 .config log report info possible deadlock in pty_write
ci-upstream-kasan-gce-selinux-root 2021/11/10 12:04 upstream cb690f5238d7 55fa030c .config log report info possible deadlock in pty_write
ci-upstream-kasan-gce-selinux-root 2021/11/09 09:23 upstream e851dfae4371 8ab17e57 .config log report info possible deadlock in pty_write
ci-qemu-upstream 2021/11/06 13:45 upstream fe91c4725aee 4c1be0be .config log report info possible deadlock in pty_write
ci-qemu-upstream 2021/11/04 22:03 upstream 7ddb58cb0eca 4c1be0be .config log report info possible deadlock in pty_write
ci-qemu-upstream 2021/11/04 01:50 upstream dcd68326d29b 4c1be0be .config log report info possible deadlock in pty_write
ci-qemu-upstream 2021/10/31 03:14 upstream 3a4347d82efd 098b5d53 .config log report info possible deadlock in pty_write
ci-upstream-kasan-gce 2021/10/30 16:35 upstream f25a5481af12 098b5d53 .config log report info possible deadlock in pty_write
ci-upstream-kasan-gce-root 2021/10/23 04:27 upstream 64222515138e 282f03fb .config log report info possible deadlock in pty_write
ci-upstream-kasan-gce-root 2021/10/05 04:03 upstream 84b3e42564ac ce697b49 .config log report info possible deadlock in pty_write
ci-upstream-kasan-gce-selinux-root 2021/09/18 00:20 upstream ddf21bd8ab98 70b76c1d .config log report info possible deadlock in pty_write
ci-upstream-kasan-gce-root 2021/09/15 09:46 upstream 1619b69edce1 07e953c1 .config log report info possible deadlock in pty_write
ci-upstream-kasan-gce 2021/08/08 22:04 upstream 85a90500f9a1 6972b106 .config log report info possible deadlock in pty_write
ci-upstream-kasan-gce-root 2021/08/06 08:13 upstream 902e7f373fff d2d6e680 .config log report info possible deadlock in pty_write
ci-upstream-kasan-gce 2021/07/25 17:07 upstream 7ffca2bb9d8b 4d1b57d4 .config log report info possible deadlock in pty_write
ci-upstream-kasan-gce-selinux-root 2021/06/25 14:07 upstream 44db63d1ad8d 0edbbe31 .config log report info possible deadlock in pty_write
ci-upstream-kasan-gce-root 2021/06/09 21:34 upstream 368094df48e6 84fe5d96 .config log report info possible deadlock in pty_write
ci-upstream-kasan-gce-root 2021/04/23 04:15 upstream 90c911ad7445 590921a5 .config log report info possible deadlock in pty_write
ci-upstream-kasan-gce-386 2022/01/14 00:02 upstream 455e73a07f6e b8d780ab .config log report info possible deadlock in pty_write
ci-upstream-kasan-gce-386 2021/12/06 07:56 upstream 944207047ca4 a617004c .config log report info possible deadlock in pty_write
ci-qemu-upstream-386 2021/12/05 17:04 upstream 79a72162048e a617004c .config log report info possible deadlock in pty_write
ci-upstream-kasan-gce-386 2021/12/04 07:31 upstream 12119cfa1052 a617004c .config log report info possible deadlock in pty_write
ci-qemu-upstream-386 2021/11/24 11:13 upstream 5d9f4cf36721 545ab074 .config log report info possible deadlock in pty_write
ci-upstream-kasan-gce-386 2021/11/20 19:12 upstream a90af8f15bdc 4eb20a4e .config log report info possible deadlock in pty_write
ci-upstream-kasan-gce-386 2021/11/17 12:59 upstream 8ab774587903 cafff8b6 .config log report info possible deadlock in pty_write
ci-qemu-upstream-386 2021/11/06 06:48 upstream fe91c4725aee 4c1be0be .config log report info possible deadlock in pty_write
ci-qemu-upstream-386 2021/11/03 18:40 upstream dcd68326d29b 4c1be0be .config log report info possible deadlock in pty_write
ci-qemu-upstream-386 2021/11/01 19:06 upstream 8bb7eca972ad 098b5d53 .config log report info possible deadlock in pty_write
ci-upstream-linux-next-kasan-gce-root 2022/01/13 17:55 linux-next 27c9d5b3c24a 44d1319a .config log report info possible deadlock in pty_write
ci-upstream-linux-next-kasan-gce-root 2021/11/06 10:35 linux-next 6a37ebbe07bf 4c1be0be .config log report info possible deadlock in pty_write
ci-upstream-linux-next-kasan-gce-root 2021/10/30 11:52 linux-next bdcc9f6a5682 098b5d53 .config log report info possible deadlock in pty_write
ci-upstream-kasan-gce-root 2020/02/01 01:26 upstream ccaaaf6fe5a5 c30117b2 .config log report
ci-qemu-upstream-386 2020/10/10 04:45 upstream 8a5f78d98c26 93817d89 .config log report info