netdev - Re: KASAN: use-after-free Read in soft

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Date:   Fri, 06 Dec 2019 08:34:01 -0800
From:   syzbot <syzbot+cf43fb300aa142fb024b@...kaller.appspotmail.com>
To:     b.zolnierkie@...sung.com, coreteam@...filter.org,
        davem@...emloft.net, dri-devel@...ts.freedesktop.org,
        gwshan@...ux.vnet.ibm.com, kaber@...sh.net,
        kadlec@...ckhole.kfki.hu, linux-fbdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, mpe@...erman.id.au,
        netdev@...r.kernel.org, netfilter-devel@...r.kernel.org,
        pablo@...filter.org, ruscur@...sell.cc, stewart@...ux.vnet.ibm.com,
        syzkaller-bugs@...glegroups.com
Subject: Re: KASAN: use-after-free Read in soft_cursor

syzbot has bisected this bug to:

commit 2de50e9674fc4ca3c6174b04477f69eb26b4ee31
Author: Russell Currey <ruscur@...sell.cc>
Date:   Mon Feb 8 04:08:20 2016 +0000

     powerpc/powernv: Remove support for p5ioc2

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=1512d1bce00000
start commit:   b0d4beaa Merge branch 'next.autofs' of git://git.kernel.or..
git tree:       upstream
final crash:    https://syzkaller.appspot.com/x/report.txt?x=1712d1bce00000
console output: https://syzkaller.appspot.com/x/log.txt?x=1312d1bce00000
kernel config:  https://syzkaller.appspot.com/x/.config?x=f07a23020fd7d21a
dashboard link: https://syzkaller.appspot.com/bug?extid=cf43fb300aa142fb024b
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=1745a90ee00000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=1361042ae00000

Reported-by: syzbot+cf43fb300aa142fb024b@...kaller.appspotmail.com
Fixes: 2de50e9674fc ("powerpc/powernv: Remove support for p5ioc2")

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