linux-kernel - Re: [PATCH] drm/bridge: vga-dac: Fix edid memory leak

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

Date:   Sat, 21 Apr 2018 11:47:45 +0300
From:   Laurent Pinchart <laurent.pinchart@...asonboard.com>
To:     Sean Paul <seanpaul@...omium.org>
Cc:     dri-devel@...ts.freedesktop.org, Rob Herring <robh@...nel.org>,
        Maxime Ripard <maxime.ripard@...e-electrons.com>,
        Archit Taneja <architt@...eaurora.org>,
        Andrzej Hajda <a.hajda@...sung.com>, stable@...r.kernel.org,
        David Airlie <airlied@...ux.ie>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] drm/bridge: vga-dac: Fix edid memory leak

Hi Sean,

Thank you for the patch.

On Friday, 20 April 2018 21:59:59 EEST Sean Paul wrote:
> edid should be freed once it's finished being used.
> 
> Fixes: 56fe8b6f4991 ("drm/bridge: Add RGB to VGA bridge support")
> Cc: Rob Herring <robh@...nel.org>
> Cc: Sean Paul <seanpaul@...omium.org>
> Cc: Maxime Ripard <maxime.ripard@...e-electrons.com>
> Cc: Archit Taneja <architt@...eaurora.org>
> Cc: Andrzej Hajda <a.hajda@...sung.com>
> Cc: Laurent Pinchart <Laurent.pinchart@...asonboard.com>
> Cc: <stable@...r.kernel.org> # v4.9+
> Signed-off-by: Sean Paul <seanpaul@...omium.org>

Reviewed-by: Laurent Pinchart <laurent.pinchart@...asonboard.com>

> ---
>  drivers/gpu/drm/bridge/dumb-vga-dac.c | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/bridge/dumb-vga-dac.c
> b/drivers/gpu/drm/bridge/dumb-vga-dac.c index 498d5948d1a8..9837c8d69e69
> 100644
> --- a/drivers/gpu/drm/bridge/dumb-vga-dac.c
> +++ b/drivers/gpu/drm/bridge/dumb-vga-dac.c
> @@ -56,7 +56,9 @@ static int dumb_vga_get_modes(struct drm_connector
> *connector) }
> 
>  	drm_mode_connector_update_edid_property(connector, edid);
> -	return drm_add_edid_modes(connector, edid);
> +	ret = drm_add_edid_modes(connector, edid);
> +	kfree(edid);
> +	return ret;
> 
>  fallback:
>  	/*

-- 
Regards,

Laurent Pinchart