linux-kernel - Re: KASAN: use-after-free Write in hci_sock

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Message-ID: <0000000000007ab36905a180b328@google.com>
Date:   Mon, 23 Mar 2020 00:37:02 -0700
From:   syzbot <syzbot+04e804c8c2224b6a9497@...kaller.appspotmail.com>
To:     a@...table.cc, andrew@...n.ch, b.a.t.m.a.n@...ts.open-mesh.org,
        davem@...emloft.net, f.fainelli@...il.com, johan.hedberg@...il.com,
        kuba@...nel.org, linux-bluetooth@...r.kernel.org,
        linux-kernel@...r.kernel.org, marcel@...tmann.org,
        mareklindner@...mailbox.ch, netdev@...r.kernel.org,
        sw@...onwunderlich.de, syzkaller-bugs@...glegroups.com
Subject: Re: KASAN: use-after-free Write in hci_sock_bind (2)

syzbot has bisected this bug to:

commit 7d13eca09ed5e477f6ecfd97a35058762228b5e4
Author: Florian Fainelli <f.fainelli@...il.com>
Date:   Sat Aug 27 22:34:20 2016 +0000

    Documentation: networking: dsa: Remove platform device TODO

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=1746f3f9e00000
start commit:   770fbb32 Add linux-next specific files for 20200228
git tree:       linux-next
final crash:    https://syzkaller.appspot.com/x/report.txt?x=14c6f3f9e00000
console output: https://syzkaller.appspot.com/x/log.txt?x=10c6f3f9e00000
kernel config:  https://syzkaller.appspot.com/x/.config?x=576314276bce4ad5
dashboard link: https://syzkaller.appspot.com/bug?extid=04e804c8c2224b6a9497
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=11fc5e75e00000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=10707013e00000

Reported-by: syzbot+04e804c8c2224b6a9497@...kaller.appspotmail.com
Fixes: 7d13eca09ed5 ("Documentation: networking: dsa: Remove platform device TODO")

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