syzbot


KASAN: slab-out-of-bounds Write in snd_usb_mixer_interrupt
Status: upstream: reported C repro on 2020/06/23 21:08
Reported-by: syzbot+2405ca3401e943c538b5@syzkaller.appspotmail.com
Fix commit: 220345e9 ALSA: usb-audio: Fix OOB access of mixer element list
Patched on: [ci-qemu-upstream ci-qemu-upstream-386 ci-upstream-bpf-kasan-gce ci-upstream-gce-leak ci-upstream-kasan-gce ci-upstream-kasan-gce-386 ci-upstream-kasan-gce-root ci-upstream-kasan-gce-selinux-root ci-upstream-kasan-gce-smack-root ci-upstream-linux-next-kasan-gce-root ci-upstream-net-kasan-gce ci-upstream-net-this-kasan-gce ci2-upstream-kcsan-gce ci2-upstream-usb], missing on: [ci-upstream-bpf-next-kasan-gce ci-upstream-kmsan-gce ci-upstream-kmsan-gce-386]
First crash: 15d, last: 9d07h

Cause bisection: introduced by (bisect log):

commit f2c2e717642c66f7fe7e5dd69b2e8ff5849f4d10
Author: Andrey Konovalov <andreyknvl@google.com>
Date: Mon Feb 24 16:13:03 2020 +0000

  usb: gadget: add raw-gadget interface

Crash: KASAN: slab-out-of-bounds Write in snd_usb_mixer_notify_id (log)
Repro: C syz .config
similar bugs (1):
Kernel Title Repro Bisected Count Last Reported Patched Status
android-54 KASAN: slab-out-of-bounds Write in snd_usb_mixer_interrupt C 4 5d08h 15d 0/1 upstream: reported C repro on 2020/06/19 20:00

Sample crash report:

Crashes (5):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro Maintainers
ci-upstream-kasan-gce-smack-root 2020/06/19 21:03 upstream 7ae77150 81abc331 .config log report syz C alsa-devel@alsa-project.org, linux-kernel@vger.kernel.org, perex@perex.cz, tiwai@suse.com
ci-upstream-kasan-gce-386 2020/06/25 13:39 upstream 7ae77150 54566aff .config log report syz C alsa-devel@alsa-project.org, linux-kernel@vger.kernel.org, perex@perex.cz, tiwai@suse.com
ci-upstream-kasan-gce-smack-root 2020/06/25 14:37 upstream 7ae77150 54566aff .config log report alsa-devel@alsa-project.org, linux-kernel@vger.kernel.org, perex@perex.cz, tiwai@suse.com
ci-upstream-kasan-gce-smack-root 2020/06/24 14:33 upstream 7ae77150 54566aff .config log report alsa-devel@alsa-project.org, linux-kernel@vger.kernel.org, perex@perex.cz, tiwai@suse.com
ci-upstream-kasan-gce-smack-root 2020/06/24 08:45 upstream 7ae77150 54566aff .config log report alsa-devel@alsa-project.org, linux-kernel@vger.kernel.org, perex@perex.cz, tiwai@suse.com