linux-kernel - Re: [syzbot] KASAN: use-after-free Read in snd_rawmidi

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Message-ID: <000000000000578e0105e064a230@google.com>
Date:   Wed, 01 Jun 2022 08:35:08 -0700
From:   syzbot <syzbot+39e3268af9968f153591@...kaller.appspotmail.com>
To:     alsa-devel-owner@...a-project.org, alsa-devel@...a-project.org,
        anthony.l.nguyen@...el.com, coding@...ic.se, colin.king@...el.com,
        hdanton@...a.com, linux-kernel@...r.kernel.org,
        naamax.meir@...ux.intel.com, perex@...ex.cz,
        sasha.neftin@...el.com, syzkaller-bugs@...glegroups.com,
        tiwai@...e.com
Subject: Re: [syzbot] KASAN: use-after-free Read in snd_rawmidi_transmit

syzbot has bisected this issue to:

commit d098538ed4e8a6c09f86cf243f406c1451066040
Author: Sasha Neftin <sasha.neftin@...el.com>
Date:   Mon Mar 21 06:05:10 2022 +0000

    igc: Remove igc_set_spd_dplx method

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=16458313f00000
start commit:   2a5699b0de4e Merge tag 'leds-5.19-rc1' of git://git.kernel..
git tree:       upstream
final oops:     https://syzkaller.appspot.com/x/report.txt?x=15458313f00000
console output: https://syzkaller.appspot.com/x/log.txt?x=11458313f00000
kernel config:  https://syzkaller.appspot.com/x/.config?x=f915857c44e13980
dashboard link: https://syzkaller.appspot.com/bug?extid=39e3268af9968f153591
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=119d1fcbf00000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=17716bedf00000

Reported-by: syzbot+39e3268af9968f153591@...kaller.appspotmail.com
Fixes: d098538ed4e8 ("igc: Remove igc_set_spd_dplx method")

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