linux-kernel - Re: [PATCH v3] HID: betop: fix slab-out-of-bounds Write in betop

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Message-ID: <nycvar.YFH.7.76.2109151631410.15944@cbobk.fhfr.pm>
Date:   Wed, 15 Sep 2021 16:31:48 +0200 (CEST)
From:   Jiri Kosina <jikos@...nel.org>
To:     "F.A.Sulaiman" <asha.16@...ac.mrt.ac.lk>
cc:     benjamin.tissoires@...hat.com, linux-input@...r.kernel.org,
        linux-kernel@...r.kernel.org, paskripkin@...il.com
Subject: Re: [PATCH v3] HID: betop: fix slab-out-of-bounds Write in
 betop_probe

On Tue, 24 Aug 2021, F.A.Sulaiman wrote:

> Syzbot reported slab-out-of-bounds Write bug in hid-betopff driver.
> The problem is the driver assumes the device must have an input report but
> some malicious devices violate this assumption.
> 
> So this patch checks hid_device's input is non empty before it's been used.
> 
> Reported-by: syzbot+07efed3bc5a1407bd742@...kaller.appspotmail.com
> Signed-off-by: F.A. SULAIMAN <asha.16@...ac.mrt.ac.lk>

Applied, thanks.

-- 
Jiri Kosina
SUSE Labs