linux-kernel - Re: KASAN: global-out-of-bounds Read in dvb_pll

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Message-ID: <CAAeHK+xZRH9-ue0QyEdiWmbFJF6P3RXMud+tE6t3x6Orcxnbkg@mail.gmail.com>
Date:   Tue, 13 Aug 2019 15:22:49 +0200
From:   Andrey Konovalov <andreyknvl@...gle.com>
To:     syzbot <syzbot+8a8f48672560c8ca59dd@...kaller.appspotmail.com>,
        bnvandana@...il.com
Cc:     allison@...utok.net, hverkuil-cisco@...all.nl,
        LKML <linux-kernel@...r.kernel.org>, linux-media@...r.kernel.org,
        USB list <linux-usb@...r.kernel.org>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        rfontana@...hat.com,
        syzkaller-bugs <syzkaller-bugs@...glegroups.com>,
        Thomas Gleixner <tglx@...utronix.de>, tskd08@...il.com
Subject: Re: KASAN: global-out-of-bounds Read in dvb_pll_attach

On Wed, Jul 17, 2019 at 2:29 PM syzbot
<syzbot+8a8f48672560c8ca59dd@...kaller.appspotmail.com> wrote:
>
> Hello,
>
> syzbot has tested the proposed patch and the reproducer did not trigger
> crash:
>
> Reported-and-tested-by:
> syzbot+8a8f48672560c8ca59dd@...kaller.appspotmail.com
>
> Tested on:
>
> commit:         6a3599ce usb-fuzzer: main usb gadget fuzzer driver
> git tree:       https://github.com/google/kasan.git usb-fuzzer
> kernel config:  https://syzkaller.appspot.com/x/.config?x=d90745bdf884fc0a
> compiler:       gcc (GCC) 9.0.0 20181231 (experimental)
> patch:          https://syzkaller.appspot.com/x/patch.diff?x=1454f4d0600000
>
> Note: testing is done by a robot and is best-effort only.

Hi bnvandana,

Could you submit this patch? Syzbot testing shows that is fixes the issue.

Thanks!