syzbot


KASAN: use-after-free Read in delete_and_unsubscribe_port
Status: fixed on 2020/09/01 18:34
Reported-by: syzbot+a433a888645ae4eb2f6c@syzkaller.appspotmail.com
Fix commit: ccafbed8 ALSA: seq: oss: Serialize ioctls
First crash: 211d, last: 211d

Fix bisection: fixed by (bisect log) :
commit ccafbed8b2f6a9d9298534b39e76da9cb40ff717
Author: Takashi Iwai <tiwai@suse.de>
Date: Tue Aug 4 18:58:15 2020 +0000

  ALSA: seq: oss: Serialize ioctls

similar bugs (2):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream KASAN: use-after-free Read in delete_and_unsubscribe_port 1 794d 790d 0/21 auto-closed as invalid on 2019/06/23 16:41
upstream KASAN: use-after-free Read in delete_and_unsubscribe_port (2) syz done 4 207d 232d 17/21 fixed on 2020/09/16 22:51

Sample crash report:

Crashes (2):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci2-linux-4-14 2020/07/30 12:41 linux-4.14.y e5a54aa2 b0947553 .config log report syz
ci2-linux-4-14 2020/07/30 12:25 linux-4.14.y e5a54aa2 b0947553 .config log report syz