linux-kernel - Re: KASAN: use-after-free Read in ccid_hc_tx

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Message-ID: <0000000000002c243a0597dc8d9d@google.com>
Date:   Thu, 21 Nov 2019 07:00:00 -0800
From:   syzbot <syzbot+3967c1caf256f4d5aefe@...kaller.appspotmail.com>
To:     alsa-devel@...a-project.org, dan.carpenter@...cle.com,
        davem@...emloft.net, dccp@...r.kernel.org, gerrit@....abdn.ac.uk,
        linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
        perex@...ex.cz, syzkaller-bugs@...glegroups.com, tiwai@...e.com,
        tiwai@...e.de
Subject: Re: KASAN: use-after-free Read in ccid_hc_tx_delete

syzbot has bisected this bug to:

commit f04684b4d85d6371126f476d3268ebf6a0bd57cf
Author: Dan Carpenter <dan.carpenter@...cle.com>
Date:   Thu Jun 21 08:07:21 2018 +0000

     ALSA: lx6464es: Missing error code in snd_lx6464es_create()

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=10dd11cae00000
start commit:   eb6cf9f8 Merge tag 'arm64-fixes' of git://git.kernel.org/p..
git tree:       upstream
final crash:    https://syzkaller.appspot.com/x/report.txt?x=12dd11cae00000
console output: https://syzkaller.appspot.com/x/log.txt?x=14dd11cae00000
kernel config:  https://syzkaller.appspot.com/x/.config?x=c8970c89a0efbb23
dashboard link: https://syzkaller.appspot.com/bug?extid=3967c1caf256f4d5aefe
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=11022ccd400000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=124581db400000

Reported-by: syzbot+3967c1caf256f4d5aefe@...kaller.appspotmail.com
Fixes: f04684b4d85d ("ALSA: lx6464es: Missing error code in  
snd_lx6464es_create()")

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