linux-kernel - Re: [PATCH v3] ALSA: hiface: fix multiple memory leak bugs

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <s5hwofpl1i0.wl-tiwai@suse.de>
Date:   Wed, 07 Aug 2019 12:21:27 +0200
From:   Takashi Iwai <tiwai@...e.de>
To:     Wenwen Wang <wenwen@...uga.edu>
Cc:     "moderated list:SOUND" <alsa-devel@...a-project.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Allison Randal <allison@...utok.net>,
        Jaroslav Kysela <perex@...ex.cz>,
        Takashi Iwai <tiwai@...e.com>,
        open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v3] ALSA: hiface: fix multiple memory leak bugs

On Wed, 07 Aug 2019 11:08:51 +0200,
Wenwen Wang wrote:
> 
> In hiface_pcm_init(), 'rt' is firstly allocated through kzalloc(). Later
> on, hiface_pcm_init_urb() is invoked to initialize 'rt->out_urbs[i]'. In
> hiface_pcm_init_urb(), 'rt->out_urbs[i].buffer' is allocated through
> kzalloc().  However, if hiface_pcm_init_urb() fails, both 'rt' and
> 'rt->out_urbs[i].buffer' are not deallocated, leading to memory leak bugs.
> Also, 'rt->out_urbs[i].buffer' is not deallocated if snd_pcm_new() fails.
> 
> To fix the above issues, free 'rt' and 'rt->out_urbs[i].buffer'.
> 
> Signed-off-by: Wenwen Wang <wenwen@...uga.edu>

Applied now.  Thanks!


Takashi