From: Hangyu Hua Date: Mon, 16 May 2022 03:20:42 +0000 (+0800) Subject: drm/dp/mst: fix a possible memory leak in fetch_monitor_name() X-Git-Tag: v4.19.245~29 X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=26e44f6c19bb2cf74cf1d5555d799863499e5067;p=thirdparty%2Fkernel%2Fstable.git drm/dp/mst: fix a possible memory leak in fetch_monitor_name() commit 6e03b13cc7d9427c2c77feed1549191015615202 upstream. drm_dp_mst_get_edid call kmemdup to create mst_edid. So mst_edid need to be freed after use. Signed-off-by: Hangyu Hua Reviewed-by: Lyude Paul Signed-off-by: Lyude Paul Cc: stable@vger.kernel.org Link: https://patchwork.freedesktop.org/patch/msgid/20220516032042.13166-1-hbh25y@gmail.com Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c b/drivers/gpu/drm/drm_dp_mst_topology.c index c50fe915f5c84..603ebaa6a7edc 100644 --- a/drivers/gpu/drm/drm_dp_mst_topology.c +++ b/drivers/gpu/drm/drm_dp_mst_topology.c @@ -2987,6 +2987,7 @@ static void fetch_monitor_name(struct drm_dp_mst_topology_mgr *mgr, mst_edid = drm_dp_mst_get_edid(port->connector, mgr, port); drm_edid_get_monitor_name(mst_edid, name, namelen); + kfree(mst_edid); } /**