linux-kernel - Re: [PATCH] HID: wacom: Fix memory leak in wacom

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Message-ID: <20210114125742.GA644967@PWN>
Date:   Thu, 14 Jan 2021 07:57:42 -0500
From:   Peilin Ye <yepeilin.cs@...il.com>
To:     Jiri Kosina <jikos@...nel.org>
Cc:     Benjamin Tissoires <benjamin.tissoires@...hat.com>,
        Phong Tran <tranmanphong@...il.com>,
        Jason Gerecke <killertofu@...il.com>,
        linux-input@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] HID: wacom: Fix memory leak in wacom_probe()

Hi Jiri,

On Thu, Jan 14, 2021 at 01:21:13PM +0100, Jiri Kosina wrote:
> > wacom_probe() is leaking memory. Free `&wacom_wac->pen_fifo` when
> > hid_parse() or wacom_parse_and_register() fails.
> 
> Thanks for the patch. It's however already been fixed in 
> hid.git#for-5.11/upstream-fixes (37309f47e2f5) branch that will be going 
> to Linus shortly.

Ah...  I checked linux-input@ before I started working on the bug, but
it seems that Ping sent out a patch just a few hours before I did.

Sorry for the race condition,
Peilin Ye