linux-kernel - Re: KASAN: slab-out-of-bounds Read in resample

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Message-ID: <00000000000025d0e305a052e97f@google.com>
Date:   Sat, 07 Mar 2020 23:34:02 -0800
From:   syzbot <syzbot+e1fe9f44fb8ecf4fb5dd@...kaller.appspotmail.com>
To:     alsa-devel-owner@...a-project.org, alsa-devel@...a-project.org,
        gustavo@...eddedor.com, linux-kernel@...r.kernel.org,
        perex@...ex.cz, syzkaller-bugs@...glegroups.com, tiwai@...e.com,
        tiwai@...e.de
Subject: Re: KASAN: slab-out-of-bounds Read in resample_shrink

syzbot has bisected this bug to:

commit ca0214ee2802dd47239a4e39fb21c5b00ef61b22
Author: Takashi Iwai <tiwai@...e.de>
Date:   Fri Mar 22 15:00:54 2019 +0000

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

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=101931fde00000
start commit:   63623fd4 Merge tag 'for-linus' of git://git.kernel.org/pub..
git tree:       upstream
final crash:    https://syzkaller.appspot.com/x/report.txt?x=121931fde00000
console output: https://syzkaller.appspot.com/x/log.txt?x=141931fde00000
kernel config:  https://syzkaller.appspot.com/x/.config?x=5d2e033af114153f
dashboard link: https://syzkaller.appspot.com/bug?extid=e1fe9f44fb8ecf4fb5dd
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=160e2e91e00000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=125f09fde00000

Reported-by: syzbot+e1fe9f44fb8ecf4fb5dd@...kaller.appspotmail.com
Fixes: ca0214ee2802 ("ALSA: pcm: Fix possible OOB access in PCM oss plugins")

For information about bisection process see: https://goo.gl/tpsmEJ#bisection