linux-kernel - Re: [PATCH] Input: Check sanity of pipe in pegasus

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Message-ID: <ZDNzWH69OCefPW+G@google.com>
Date:   Sun, 9 Apr 2023 19:24:24 -0700
From:   Dmitry Torokhov <dmitry.torokhov@...il.com>
To:     Soumya Negi <soumya.negi97@...il.com>
Cc:     linux-input@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] Input: Check sanity of pipe in pegasus_probe()

On Tue, Apr 04, 2023 at 12:41:45AM -0700, Soumya Negi wrote:
> Fix WARNING in pegasus_open/usb_submit_urb
> Syzbot bug: https://syzkaller.appspot.com/bug?id=bbc107584dcf3262253ce93183e51f3612aaeb13
> 
> Warning raised because pegasus_driver submits transfer request for
> bogus URB(pipe type does not match endpoint type). Add sanity check at
> probe time for pipe value extracted from endpoint descriptor. Probe
> will fail if sanity check fails.
> 
> Reported-and-tested-by: syzbot+04ee0cb4caccaed12d78@...kaller.appspotmail.com
> Signed-off-by: Soumya Negi <soumya.negi97@...il.com>

Applied, thank you.

-- 
Dmitry