syzbot


KASAN: null-ptr-deref Read in do_con_trol
Status: fixed on 2020/08/12 22:58
Reported-by: syzbot+2057b655d6a3fa9bb8a5@syzkaller.appspotmail.com
Fix commit: 74752b81 vt: Reject zero-sized screen buffer size.
First crash: 378d, last: 228d

Fix bisection: fixed by (bisect log) :
commit 74752b81eae8ae64e97de222320026367e92c4b5
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.

similar bugs (2):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.14 KASAN: null-ptr-deref Read in do_con_trol C inconclusive 1 257d 378d 0/1 upstream: reported C repro on 2020/02/15 00:04
upstream KASAN: null-ptr-deref Read in do_con_trol C done error 6 316d 379d 0/21 closed as dup on 2020/07/20 22:49

Sample crash report:

Crashes (1):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci2-linux-4-19 2020/02/14 08:21 linux-4.19.y 35766839 5d7b90f1 .config log report syz C