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

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Message-ID: <CAKfDRXjnUZx2rAVV1-9em9YyNvJbFG+vciZHihsKiu66Uz2Dgw@mail.gmail.com>
Date:   Mon, 24 Jun 2019 19:16:50 +0200
From:   Kristian Evensen <kristian.evensen@...il.com>
To:     Bjørn Mork <bjorn@...k.no>
Cc:     Hillf Danton <hdanton@...a.com>,
        syzbot <syzbot+b68605d7fadd21510de1@...kaller.appspotmail.com>,
        andreyknvl@...gle.com, David Miller <davem@...emloft.net>,
        linux-kernel@...r.kernel.org, linux-usb@...r.kernel.org,
        Network Development <netdev@...r.kernel.org>,
        syzkaller-bugs@...glegroups.com
Subject: Re: KASAN: global-out-of-bounds Read in qmi_wwan_probe

Hi,

On Mon, Jun 24, 2019 at 6:26 PM Bjørn Mork <bjorn@...k.no> wrote:
> Doh! Right you are.  Thanks to both you and Andrey for quick and good
> help.
>
> We obviously have some bad code patterns here, since this apparently
> worked for Kristian by pure luck.

Thanks a lot to everyone for spotting and fixing my mistake, and sorry
for not replying earlier. The patch from Bjørn is probably a candidate
for stable as well. I don't remember exactly when the quirk was
accepted in the kernel, but I recently submitted and got the quirk
accepted into 4.14.

BR,
Kristian