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: 624d, last: 12d

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 198 1d11h 624d 0/1 upstream: reported C repro on 2020/02/01 01:19
linux-4.19 possible deadlock in pty_write C 123 6d00h 622d 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 (100):
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 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 2021/03/17 18:52 upstream 1df27313f50a fdb2bb2c .config log report info possible deadlock in pty_write
ci-upstream-kasan-gce-root 2021/03/03 21:00 upstream f69d02e37a85 06ed56cd .config log report info possible deadlock in pty_write
ci-upstream-kasan-gce-root 2021/02/04 07:10 upstream 3afe9076a7c1 624dad51 .config log report info possible deadlock in pty_write
ci-upstream-kasan-gce 2021/01/24 11:53 upstream e1ae4b0be158 52e37319 .config log report info possible deadlock in pty_write
ci-upstream-linux-next-kasan-gce-root 2021/04/07 22:48 linux-next 5103a5be098c 6a81331a .config log report info possible deadlock in pty_write
ci-upstream-kasan-gce 2020/10/08 19:17 upstream c85fb28b6f99 92390980 .config log report info
ci-upstream-kasan-gce-root 2020/09/17 23:17 upstream 5925fa68fe82 8247808b .config log report info
ci-upstream-kasan-gce-selinux-root 2020/09/04 08:41 upstream e28f0104343d abf9ba4f .config log report
ci-upstream-kasan-gce-selinux-root 2020/08/29 19:04 upstream 4d41ead6ead9 d5a3ae1f .config log report
ci-upstream-kasan-gce-root 2020/08/27 01:24 upstream 2ac69819ba9e 318430cb .config log report
ci-upstream-kasan-gce-root 2020/08/26 10:39 upstream abb3438d69fb 344da168 .config log report
ci-upstream-kasan-gce-selinux-root 2020/08/21 15:08 upstream da2968ff879b 6436ce4b .config log report
ci-upstream-kasan-gce 2020/08/18 06:39 upstream 06a4ec1d9dc6 424dd8e7 .config log report
ci-upstream-kasan-gce-root 2020/08/16 15:20 upstream 4b6c093e21d3 424dd8e7 .config log report
ci-upstream-kasan-gce-selinux-root 2020/08/14 20:38 upstream a1d21081a60d 424dd8e7 .config log report
ci-upstream-kasan-gce-selinux-root 2020/08/12 00:58 upstream 00e4db51259a bacaf5fa .config log report
ci-upstream-kasan-gce-root 2020/08/09 00:19 upstream 449dc8c97089 f721e4a0 .config log report
ci-upstream-kasan-gce-selinux-root 2020/08/01 08:53 upstream d8b9faec54ae d895b3be .config log report
ci-upstream-kasan-gce-root 2020/07/16 19:54 upstream 994e99a96c9b f3bec699 .config log report
ci-upstream-kasan-gce 2020/07/14 11:41 upstream 0dc589da873b ce4c95b3 .config log report
ci-upstream-kasan-gce 2020/07/14 03:26 upstream 11ba468877bb f90ec899 .config log report
ci-upstream-kasan-gce-root 2020/07/11 09:51 upstream a581387e415b 18d18b59 .config log report
ci-upstream-kasan-gce-root 2020/07/10 12:30 upstream 42f82040ee66 edf162e8 .config log report
ci-upstream-kasan-gce-root 2020/07/05 11:39 upstream 7cc2a8ea1048 51095195 .config log report
ci-upstream-kasan-gce 2020/06/28 21:53 upstream 4e99b32169e8 a2cdad9d .config log report
ci-upstream-kasan-gce-root 2020/06/28 20:35 upstream 4e99b32169e8 a2cdad9d .config log report
ci-upstream-kasan-gce-selinux-root 2020/06/21 05:37 upstream 7ae77150d94d c655ec77 .config log report
ci-upstream-kasan-gce-root 2020/06/18 04:06 upstream 7ae77150d94d b9f3810b .config log report
ci-upstream-kasan-gce 2020/06/13 12:25 upstream 7ae77150d94d f4724dd3 .config log report
ci-upstream-kasan-gce-root 2020/06/09 20:58 upstream 7ae77150d94d 092934c1 .config log report
ci-upstream-kasan-gce-root 2020/06/07 06:54 upstream 7ae77150d94d e6b89e4e .config log report
ci-upstream-kasan-gce 2020/05/31 06:50 upstream ffeb595d8481 6f3e1c7c .config log report
ci-upstream-kasan-gce 2020/05/28 10:57 upstream b0c3ba31be3e 142a0957 .config log report
ci-upstream-kasan-gce 2020/05/16 14:29 upstream 12bf0b632ed0 37bccd4e .config log report
ci-upstream-kasan-gce 2020/02/03 14:12 upstream 46d6b7becb1d 93e5e335 .config log report
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
ci-upstream-kasan-gce-386 2020/08/17 07:55 upstream 2cc3c4b3c2e9 424dd8e7 .config log report
ci-upstream-kasan-gce-386 2020/06/25 12:19 upstream 7ae77150d94d 54566aff .config log report
ci-upstream-kasan-gce-386 2020/05/09 07:38 upstream d5eeab8d7e26 e97b06d3 .config log report
ci-upstream-linux-next-kasan-gce-root 2020/10/05 23:56 linux-next 2172e358cd17 1880b4a9 .config log report info
ci-upstream-linux-next-kasan-gce-root 2020/08/25 18:33 linux-next 3a00d3dfd4b6 344da168 .config log report
ci-upstream-linux-next-kasan-gce-root 2020/08/23 06:34 linux-next 494d311a82bb 1da71ab0 .config log report
ci-upstream-linux-next-kasan-gce-root 2020/08/20 17:02 linux-next 605cbf3d5f20 ed282a3a .config log report
ci-upstream-linux-next-kasan-gce-root 2020/08/18 11:03 linux-next 83c52faab7b1 424dd8e7 .config log report
ci-upstream-linux-next-kasan-gce-root 2020/08/18 10:02 linux-next 83c52faab7b1 424dd8e7 .config log report
ci-upstream-linux-next-kasan-gce-root 2020/08/16 14:12 linux-next 4993e4fe12af 424dd8e7 .config log report
ci-upstream-linux-next-kasan-gce-root 2020/08/11 05:16 linux-next f80535b9aa10 7adc7b65 .config log report
ci-upstream-linux-next-kasan-gce-root 2020/05/22 11:51 linux-next ac935d227366 5afa2ddd .config log report
ci-upstream-linux-next-kasan-gce-root 2020/05/09 20:09 linux-next ac935d227366 88cb3e92 .config log report