syzbot


BUG: unable to handle kernel NULL pointer dereference in mem16_serial_out
Status: closed as dup on 2019/12/13 09:05
Reported-by: syzbot+92f32d4e21fb246d31a2@syzkaller.appspotmail.com
First crash: 678d, last: 668d

Cause bisection: introduced by (bisect log) :
commit bd94c4077a0b2ecc35562c294f80f3659ecd8499
Author: Masahiro Yamada <yamada.masahiro@socionext.com>
Date: Wed Oct 28 03:46:05 2015 +0000

  serial: support 16-bit register interface for console

Crash: BUG: unable to handle kernel NULL pointer dereference in mem16_serial_out (log)
Repro: C syz .config
Duplicate of (1):
Title Repro Cause bisect Fix bisect Count Last Reported
BUG: unable to handle kernel NULL pointer dereference in mem_serial_out C done 7 668d 681d
similar bugs (2):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.14 BUG: unable to handle kernel NULL pointer dereference in mem16_serial_out C inconclusive 2 488d 679d 0/1 upstream: reported C repro on 2019/12/08 23:15
linux-4.19 BUG: unable to handle kernel NULL pointer dereference in mem16_serial_out C error 2 398d 679d 0/1 upstream: reported C repro on 2019/12/08 23:44

Sample crash report:

Crashes (4):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce-root 2019/12/20 01:51 upstream 4a94c4332334 36650b4b .config log report syz C
ci-upstream-kasan-gce-selinux-root 2019/12/19 18:54 upstream 4a94c4332334 36650b4b .config log report syz C
ci-upstream-kasan-gce-selinux-root 2019/12/10 00:02 upstream e42617b825f8 b31eda3d .config log report syz C
ci-upstream-kasan-gce-root 2019/12/09 18:19 upstream e42617b825f8 b31eda3d .config log report syz C