linux-kernel - Re: KASAN: slab-out-of-bounds Read in _decode

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Message-ID: <CAADnVQL8=8O1W8-G-UP1akLijdGN82hnOJAY=sknTH_S0Y1rVQ@mail.gmail.com>
Date:   Thu, 20 Sep 2018 23:21:59 -0700
From:   Alexei Starovoitov <alexei.starovoitov@...il.com>
To:     Dmitry Vyukov <dvyukov@...gle.com>
Cc:     Eric Dumazet <eric.dumazet@...il.com>,
        syzbot <syzbot+acffccec848dc13fe459@...kaller.appspotmail.com>,
        Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        David Miller <davem@...emloft.net>,
        Herbert Xu <herbert@...dor.apana.org.au>,
        Alexey Kuznetsov <kuznet@....inr.ac.ru>,
        LKML <linux-kernel@...r.kernel.org>,
        netdev <netdev@...r.kernel.org>,
        Steffen Klassert <steffen.klassert@...unet.com>,
        syzkaller-bugs <syzkaller-bugs@...glegroups.com>,
        Hideaki YOSHIFUJI <yoshfuji@...ux-ipv6.org>
Subject: Re: KASAN: slab-out-of-bounds Read in _decode_session6

On Thu, Sep 6, 2018 at 12:17 PM, Dmitry Vyukov <dvyukov@...gle.com> wrote:
>
>> but I have a hard time reproducing the issue, so will appreciate
>> if somebody can test the following patch:
>
> syzbot can:
> https://github.com/google/syzkaller/blob/master/docs/syzbot.md#testing-patches

was the patch tested?

it seems to me syzbot doesn't care about kernel quality but rather
about the number of issues syzbot can find.