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

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Date:   Sun, 24 Mar 2019 04:50:01 -0700
From:   syzbot <syzbot+b358909d8d01556b790b@...kaller.appspotmail.com>
To:     alexander.h.duyck@...el.com, amritha.nambiar@...el.com,
        andrew@...n.ch, avagin@...il.com, danielj@...lanox.com,
        davem@...emloft.net, dledford@...hat.com,
        dmitry.torokhov@...il.com, gregory.clement@...tlin.com,
        jason@...edaemon.net, jeffrey.t.kirsher@...el.com, jgg@...pe.ca,
        joe@...ches.com, leon@...nel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-rdma@...r.kernel.org, marc.zyngier@....com,
        miquel.raynal@...tlin.com, netdev@...r.kernel.org,
        parav@...lanox.com, sebastian.hesselbarth@...il.com,
        swise@...ngridcomputing.com, syzkaller-bugs@...glegroups.com,
        tglx@...utronix.de, tyhicks@...onical.com
Subject: Re: KASAN: use-after-free Read in addr_handler

syzbot has bisected this bug to:

commit 4f4c867c91e644fc9d461c8c5cf2f09d6d5bcac2
Author: Miquel Raynal <miquel.raynal@...tlin.com>
Date:   Tue Oct 2 08:54:16 2018 +0000

     irqchip/irq-mvebu-icu: Support ICU subnodes

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=163319df200000
start commit:   a3b22b9f Linux 5.0-rc7
git tree:       upstream
final crash:    https://syzkaller.appspot.com/x/report.txt?x=153319df200000
console output: https://syzkaller.appspot.com/x/log.txt?x=113319df200000
kernel config:  https://syzkaller.appspot.com/x/.config?x=7132344728e7ec3f
dashboard link: https://syzkaller.appspot.com/bug?extid=b358909d8d01556b790b
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=1493d4d0c00000

Reported-by: syzbot+b358909d8d01556b790b@...kaller.appspotmail.com
Fixes: 4f4c867c91e6 ("irqchip/irq-mvebu-icu: Support ICU subnodes")

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