syzbot


divide error in fbcon_switch
Status: closed as dup on 2020/07/27 22:47
Reported-by: syzbot+13013adc4a234406c29e@syzkaller.appspotmail.com
First crash: 732d, last: 526d

Cause bisection: the issue happens on the oldest tested release (bisect log)
Crash: no output from test machine (log)
Repro: C syz .config

Fix bisection: fixed by (bisect log) :
commit ce684552a266cb1c7cc2f7e623f38567adec6653
Author: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Date: Sun Jul 12 11:10:12 2020 +0000

  vt: Reject zero-sized screen buffer size.

Duplicate of (1):
Title Repro Cause bisect Fix bisect Count Last Reported
general protection fault in do_con_write C done 10703 496d 731d
similar bugs (2):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.14 divide error in fbcon_switch C 282 7d11h 732d 0/1 upstream: reported C repro on 2019/12/03 01:21
linux-4.19 divide error in fbcon_switch C done 259 493d 733d 1/1 fixed on 2020/09/01 18:34

Sample crash report:

Crashes (326):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce-root 2019/12/03 20:36 upstream 76bb8b05960c ae13a849 .config log report syz C
ci-upstream-kasan-gce-selinux-root 2019/12/03 16:46 upstream 76bb8b05960c ab342da3 .config log report syz C
ci-upstream-kasan-gce-selinux-root 2020/06/26 02:26 upstream 7ae77150d94d aea82c00 .config log report
ci-upstream-kasan-gce-selinux-root 2020/06/25 23:32 upstream 7ae77150d94d f9147b08 .config log report
ci-upstream-kasan-gce-selinux-root 2020/06/25 17:32 upstream 7ae77150d94d c7b4497a .config log report
ci-upstream-kasan-gce-selinux-root 2020/06/25 11:16 upstream 7ae77150d94d 54566aff .config log report
ci-upstream-kasan-gce-smack-root 2020/06/25 09:50 upstream 7ae77150d94d 54566aff .config log report
ci-upstream-kasan-gce 2020/06/25 07:40 upstream 7ae77150d94d 54566aff .config log report
ci-upstream-kasan-gce-selinux-root 2020/06/25 06:18 upstream 7ae77150d94d 54566aff .config log report
ci-upstream-kasan-gce-root 2020/06/25 01:59 upstream 7ae77150d94d 54566aff .config log report
ci-upstream-kasan-gce 2020/06/24 22:04 upstream 7ae77150d94d 54566aff .config log report
ci-upstream-kasan-gce-selinux-root 2020/06/24 18:38 upstream 7ae77150d94d 54566aff .config log report
ci-upstream-kasan-gce-root 2020/06/24 06:18 upstream 7ae77150d94d 54566aff .config log report
ci-upstream-kasan-gce-selinux-root 2020/06/23 07:17 upstream 7ae77150d94d 1afe1535 .config log report
ci-upstream-kasan-gce-smack-root 2020/06/20 02:18 upstream 7ae77150d94d 81abc331 .config log report
ci-upstream-kasan-gce-root 2020/06/19 16:32 upstream 7ae77150d94d bc258b50 .config log report
ci-upstream-kasan-gce-root 2020/06/19 12:33 upstream 7ae77150d94d bc258b50 .config log report
ci-upstream-kasan-gce-smack-root 2020/06/19 04:00 upstream 7ae77150d94d bc258b50 .config log report
ci-upstream-kasan-gce-smack-root 2020/06/19 00:55 upstream 7ae77150d94d bc258b50 .config log report
ci-upstream-kasan-gce-root 2020/06/18 12:20 upstream 7ae77150d94d d45a4d69 .config log report
ci-upstream-kasan-gce-root 2020/06/18 07:16 upstream 7ae77150d94d d45a4d69 .config log report
ci-upstream-kasan-gce-root 2020/06/17 14:00 upstream 7ae77150d94d b9f3810b .config log report
ci-upstream-kasan-gce-root 2020/06/17 08:56 upstream 7ae77150d94d b9f3810b .config log report
ci-upstream-kasan-gce-root 2020/06/17 04:04 upstream 7ae77150d94d 559fbe2d .config log report
ci-upstream-kasan-gce-root 2020/06/17 01:42 upstream 7ae77150d94d 559fbe2d .config log report
ci-upstream-kasan-gce-selinux-root 2020/06/16 19:29 upstream 7ae77150d94d 559fbe2d .config log report
ci-upstream-kasan-gce-root 2020/06/16 08:03 upstream 7ae77150d94d baca2611 .config log report
ci-upstream-kasan-gce-root 2020/06/15 19:09 upstream 7ae77150d94d baca2611 .config log report
ci-upstream-kasan-gce-smack-root 2020/06/15 16:33 upstream 7ae77150d94d 8e3ab941 .config log report
ci-upstream-kasan-gce-smack-root 2020/06/15 13:38 upstream 7ae77150d94d 8e3ab941 .config log report
ci-upstream-kasan-gce-root 2020/06/14 23:31 upstream 7ae77150d94d 2a22c77a .config log report
ci-upstream-kasan-gce-smack-root 2020/06/14 20:02 upstream 7ae77150d94d 2a22c77a .config log report
ci-upstream-kasan-gce-selinux-root 2020/06/11 19:13 upstream 7ae77150d94d 3ab7a05a .config log report
ci-upstream-kasan-gce-smack-root 2020/06/10 15:59 upstream 7ae77150d94d a6f7998d .config log report
ci-upstream-kasan-gce-root 2020/06/10 04:51 upstream 7ae77150d94d 860c4de9 .config log report
ci-upstream-kasan-gce-root 2020/06/10 03:42 upstream 7ae77150d94d 860c4de9 .config log report
ci-upstream-kasan-gce-smack-root 2020/06/10 01:32 upstream 7ae77150d94d 860c4de9 .config log report
ci-upstream-kasan-gce-root 2020/06/09 15:26 upstream 7ae77150d94d 092934c1 .config log report
ci-upstream-kasan-gce-root 2020/06/09 12:43 upstream 7ae77150d94d 0d60b78a .config log report
ci-upstream-kasan-gce-smack-root 2020/06/09 03:09 upstream 7ae77150d94d 0d60b78a .config log report
ci-upstream-kasan-gce-selinux-root 2020/06/09 00:34 upstream 7ae77150d94d 7604bb03 .config log report
ci-upstream-kasan-gce-root 2020/06/08 15:11 upstream 7ae77150d94d 7604bb03 .config log report
ci-upstream-kasan-gce-selinux-root 2020/06/08 00:49 upstream 7ae77150d94d 2c2b926c .config log report
ci-upstream-kasan-gce-smack-root 2020/06/07 11:18 upstream 7ae77150d94d 2c2b926c .config log report
ci-upstream-kasan-gce-smack-root 2020/06/06 07:50 upstream 7ae77150d94d e6b89e4e .config log report
ci-upstream-kasan-gce-selinux-root 2020/06/01 23:03 upstream 9bf9511e3d9f a0331e89 .config log report
ci-upstream-kasan-gce-root 2020/05/29 00:01 upstream 75caf310d16c 0d951763 .config log report
ci-upstream-kasan-gce-root 2020/05/28 22:59 upstream 75caf310d16c 0d951763 .config log report
ci-upstream-kasan-gce-386 2020/06/24 23:57 upstream 7ae77150d94d 54566aff .config log report
ci-upstream-kasan-gce-386 2020/06/18 06:12 upstream 7ae77150d94d d45a4d69 .config log report
ci-upstream-linux-next-kasan-gce-root 2020/05/23 05:16 linux-next c11d28ab4a69 9682898d .config log report