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

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Date:   Sun, 24 Mar 2019 14:20:47 +0100 (CET)
From:   Thomas Gleixner <tglx@...utronix.de>
To:     syzbot <syzbot+b358909d8d01556b790b@...kaller.appspotmail.com>
cc:     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,
        tyhicks@...onical.com
Subject: Re: KASAN: use-after-free Read in addr_handler

On Sun, 24 Mar 2019, syzbot wrote:

> 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

Yet another bogus bisect result. Why? That code is ARM only and cannot
influence x86 by any means.

Thanks,

	tglx