syzbot


BUG: unable to handle kernel NULL pointer dereference in do_syscall_64 (2)
Status: fixed on 2020/09/03 09:58
Reported-by: syzbot+8952118ab986b02621b4@syzkaller.appspotmail.com
Fix commit: dd58bd1b95b7 fbdev: Detect integer underflow at "struct fbcon_ops"->clear_margins.
First crash: 378d, last: 365d

Fix bisection: fixed by (bisect log) :
commit dd58bd1b95b7127bb975942e14c4a9bd878c28db
Author: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Date: Wed Jul 15 01:51:02 2020 +0000

  fbdev: Detect integer underflow at "struct fbcon_ops"->clear_margins.

similar bugs (6):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.19 BUG: unable to handle kernel NULL pointer dereference in do_syscall_64 (3) 2 326d 331d 0/1 auto-closed as invalid on 2021/01/09 06:14
upstream BUG: unable to handle kernel NULL pointer dereference in do_syscall_64 (2) C done 9 411d 515d 0/22 closed as dup on 2020/08/15 13:48
upstream BUG: unable to handle kernel NULL pointer dereference in do_syscall_64 2 1142d 1141d 0/22 auto-closed as invalid on 2019/02/22 10:29
linux-4.14 BUG: unable to handle kernel NULL pointer dereference in do_syscall_64 1 642d 642d 0/1 auto-closed as invalid on 2020/02/28 23:04
linux-4.14 BUG: unable to handle kernel NULL pointer dereference in do_syscall_64 (2) 7 440d 478d 0/1 auto-closed as invalid on 2020/09/17 05:58
linux-4.19 BUG: unable to handle kernel NULL pointer dereference in do_syscall_64 3 506d 521d 0/1 auto-closed as invalid on 2020/07/13 07:25

Sample crash report:

Crashes (4):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci2-linux-4-19 2020/07/21 15:34 linux-4.19.y 17a87580a885 e562dd8a .config log report syz C
ci2-linux-4-19 2020/08/03 08:25 linux-4.19.y 13af6c74b14a 96dd3623 .config log report
ci2-linux-4-19 2020/08/02 21:56 linux-4.19.y 13af6c74b14a 96dd3623 .config log report
ci2-linux-4-19 2020/07/21 14:10 linux-4.19.y 17a87580a885 e562dd8a .config log report