syzbot


KASAN: slab-out-of-bounds Read in resample_shrink
Status: fixed on 2020/04/15 17:19
Reported-by: syzbot+e1fe9f44fb8ecf4fb5dd@syzkaller.appspotmail.com
Fix commit: f2ecf903ef06 ALSA: pcm: oss: Avoid plugin buffer overflow
First crash: 638d, last: 620d

Cause bisection: introduced by (bisect log) :
commit ca0214ee2802dd47239a4e39fb21c5b00ef61b22
Author: Takashi Iwai <tiwai@suse.de>
Date: Fri Mar 22 15:00:54 2019 +0000

  ALSA: pcm: Fix possible OOB access in PCM oss plugins

Crash: KASAN: slab-out-of-bounds Read in resample_shrink (log)
Repro: C syz .config
similar bugs (1):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.14 KASAN: slab-out-of-bounds Read in resample_shrink C inconclusive 1 630d 630d 0/1 upstream: reported C repro on 2020/03/14 18:45

Sample crash report:

Crashes (5):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce-selinux-root 2020/03/15 19:04 upstream d3dca69085e9 749688d2 .config log report syz C
ci-upstream-kasan-gce-smack-root 2020/03/06 08:54 upstream 63623fd44972 c88c7b75 .config log report syz C
ci-upstream-kasan-gce-386 2020/03/07 06:37 upstream fb279f4e2386 fd2a5f28 .config log report syz C
ci-upstream-linux-next-kasan-gce-root 2020/03/24 15:48 linux-next 770fbb32d34e 33e14df3 .config log report syz C
ci-upstream-kasan-gce-smack-root 2020/03/06 08:06 upstream 63623fd44972 c88c7b75 .config log report