syzbot


KASAN: use-after-free Read in drm_getunique
Status: fixed on 2021/06/26 05:18
Reported-by: syzbot+eb9ee624949c6f815b8b@syzkaller.appspotmail.com
Fix commit: 7d233ba700ce drm: Fix use-after-free read in drm_getunique()
First crash: 291d, last: 124d

Fix bisection: fixed by (bisect log) :
commit 7d233ba700ceb593905ea82b42dadb4ec8ef85e9
Author: Desmond Cheong Zhi Xi <desmondcheongzx@gmail.com>
Date: Tue Jun 8 11:04:36 2021 +0000

  drm: Fix use-after-free read in drm_getunique()

similar bugs (2):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream KASAN: use-after-free Read in drm_getunique syz inconclusive 2 117d 117d 21/22 upstream: reported syz repro on 2021/06/02 07:48
linux-4.14 KASAN: use-after-free Read in drm_getunique syz 1 3d11h 285d 0/1 upstream: reported syz repro on 2020/12/15 15:58

Sample crash report:

Crashes (2):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci2-linux-4-19 2020/12/09 19:28 linux-4.19.y 4abf26854aad 99917735 .config log report syz
ci2-linux-4-19 2020/12/09 18:59 linux-4.19.y 4abf26854aad 99917735 .config log report info