From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 13CDBC433F5 for ; Mon, 23 May 2022 17:19:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240484AbiEWRTq (ORCPT ); Mon, 23 May 2022 13:19:46 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41516 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240620AbiEWRQe (ORCPT ); Mon, 23 May 2022 13:16:34 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5837160C6; Mon, 23 May 2022 10:16:13 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 2534A61535; Mon, 23 May 2022 17:15:28 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2EF62C34115; Mon, 23 May 2022 17:15:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1653326127; bh=fVbpWz7mvtZzq2d/Vrx1QGCm7tLdV6mrBEKJVLAYw64=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=SW0ifRfFsUuHMUZCR1BN9hFgDrqw9AJglA/g2EnOjrVy4o/QONp1wvBEjQ8lJAsNb hkJanaCpKHrFN/sNR/tH3N1PisqezYMZbp4Pj3QcZoPiqQJeqBmMVLdUPdn7Ki2RCq iWvlgR5YgjJpaNlqmHNZhFejby7QL18bEafyVJrw= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Hangyu Hua , Lyude Paul Subject: [PATCH 5.4 32/68] drm/dp/mst: fix a possible memory leak in fetch_monitor_name() Date: Mon, 23 May 2022 19:04:59 +0200 Message-Id: <20220523165807.924092270@linuxfoundation.org> X-Mailer: git-send-email 2.36.1 In-Reply-To: <20220523165802.500642349@linuxfoundation.org> References: <20220523165802.500642349@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Hangyu Hua 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 --- drivers/gpu/drm/drm_dp_mst_topology.c | 1 + 1 file changed, 1 insertion(+) --- a/drivers/gpu/drm/drm_dp_mst_topology.c +++ b/drivers/gpu/drm/drm_dp_mst_topology.c @@ -3657,6 +3657,7 @@ static void fetch_monitor_name(struct dr mst_edid = drm_dp_mst_get_edid(port->connector, mgr, port); drm_edid_get_monitor_name(mst_edid, name, namelen); + kfree(mst_edid); } /**