syzbot


BUG: unable to handle kernel NULL pointer dereference in corrupted (5)
Status: upstream: reported C repro on 2020/03/14 06:37
Reported-by: syzbot+8b0e78e390d1715b0f4e@syzkaller.appspotmail.com
First crash: 150d, last: 140d

Cause bisection: introduced by (bisect log):

commit 271213ef4d0d3a3b80d4cf95c5f2bebb5643e666
Author: Takashi Iwai <tiwai@suse.de>
Date: Tue Dec 10 06:34:50 2019 +0000

  ALSA: pcxhr: Support PCM sync_stop

Crash: KASAN: vmalloc-out-of-bounds Read in srcu_invoke_callbacks (log)
Repro: C syz .config

Fix bisection: failed (bisect log)
similar bugs (6):
Kernel Title Repro Bisected Count Last Reported Patched Status
linux-4.19 BUG: unable to handle kernel NULL pointer dereference in corrupted C 6 11d 291d 0/1 upstream: reported C repro on 2019/10/21 15:36
upstream BUG: unable to handle kernel NULL pointer dereference in corrupted (4) syz cause+fix 1 410d 409d 13/17 fixed on 2019/08/27 17:15
upstream BUG: unable to handle kernel NULL pointer dereference in corrupted (3) C 1 578d 578d 12/17 fixed on 2019/03/06 07:43
linux-4.14 BUG: unable to handle kernel NULL pointer dereference in corrupted C fix 3 58d 298d 0/1 upstream: reported C repro on 2019/10/14 10:06
upstream BUG: unable to handle kernel NULL pointer dereference in corrupted (2) C 1 752d 752d 9/17 fixed on 2018/08/07 13:43
upstream BUG: unable to handle kernel NULL pointer dereference in corrupted C 5 791d 791d 9/17 fixed on 2018/07/09 18:05

Sample crash report:

Crashes (3):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro
ci-upstream-kasan-gce-smack-root 2020/03/20 09:58 upstream cd607737 2c31c529 .config log report syz C
ci-upstream-kasan-gce-smack-root 2020/03/20 01:55 upstream cd607737 2c31c529 .config log report syz C
ci-upstream-kasan-gce-smack-root 2020/03/10 06:26 upstream 30bb5572 35f53e45 .config log report syz C