netdev - Re: KASAN: use-after-free Write in __sco_sock

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Date:   Thu, 17 Dec 2020 12:07:06 +0100
From:   Dmitry Vyukov <dvyukov@...gle.com>
To:     syzbot <syzbot+077eca30d3cb7c02b273@...kaller.appspotmail.com>
Cc:     anmol.karan123@...il.com, coreteam@...filter.org,
        David Miller <davem@...emloft.net>,
        "open list:ANDROID DRIVERS" <devel@...verdev.osuosl.org>,
        Fox Chen <foxhlchen@...il.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Johan Hedberg <johan.hedberg@...il.com>,
        Patrick McHardy <kaber@...sh.net>,
        Jozsef Kadlecsik <kadlec@...ckhole.kfki.hu>,
        Jakub Kicinski <kuba@...nel.org>,
        linux-bluetooth <linux-bluetooth@...r.kernel.org>,
        LKML <linux-kernel@...r.kernel.org>, linux-media@...r.kernel.org,
        Marcel Holtmann <marcel@...tmann.org>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        mchehab@...pensource.com, netdev <netdev@...r.kernel.org>,
        NetFilter <netfilter-devel@...r.kernel.org>,
        Pablo Neira Ayuso <pablo@...filter.org>,
        syzkaller-bugs <syzkaller-bugs@...glegroups.com>
Subject: Re: KASAN: use-after-free Write in __sco_sock_close

On Wed, Dec 16, 2020 at 8:15 AM syzbot
<syzbot+077eca30d3cb7c02b273@...kaller.appspotmail.com> wrote:
>
> syzbot suspects this issue was fixed by commit:
>
> commit 6dfccd13db2ff2b709ef60a50163925d477549aa
> Author: Anmol Karn <anmol.karan123@...il.com>
> Date:   Wed Sep 30 14:18:13 2020 +0000
>
>     Bluetooth: Fix null pointer dereference in hci_event_packet()
>
> bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=14cb845b500000
> start commit:   47ec5303 Merge git://git.kernel.org/pub/scm/linux/kernel/g..
> git tree:       upstream
> kernel config:  https://syzkaller.appspot.com/x/.config?x=e0c783f658542f35
> dashboard link: https://syzkaller.appspot.com/bug?extid=077eca30d3cb7c02b273
> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=165a89dc900000
> C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=130a8c62900000
>
> If the result looks correct, please mark the issue as fixed by replying with:
>
> #syz fix: Bluetooth: Fix null pointer dereference in hci_event_packet()
>
> For information about bisection process see: https://goo.gl/tpsmEJ#bisection

#syz fix: Bluetooth: Fix null pointer dereference in hci_event_packet()