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 412ACC67871 for ; Mon, 16 Jan 2023 17:17:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234543AbjAPRRj (ORCPT ); Mon, 16 Jan 2023 12:17:39 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39014 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234495AbjAPRQj (ORCPT ); Mon, 16 Jan 2023 12:16:39 -0500 Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6134B3FF27 for ; Mon, 16 Jan 2023 08:57:17 -0800 (PST) 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 ams.source.kernel.org (Postfix) with ESMTPS id 10D0CB8109B for ; Mon, 16 Jan 2023 16:57:16 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 68ADFC433D2; Mon, 16 Jan 2023 16:57:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1673888234; bh=vg85DTGXmWW6C93c/1iml8rTOxn9gtzv3sGafFQVNa8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=H9xb3ChRVcEc+UvqJu7xayiO5xlAb3prEZNujK3cjp0anzpUeN6DPzQ83YPowucMG 0GbYD9X41kbXCFOeIYA2jp/BorhxGpFQf+Y2wOHrqaK/ptmG3TLf3OF+C9rM4iOo4y 1qmm8wWFCFVJ2AweUZmoBGYEmjuCgUPxh23b0b4M= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Zhengchao Shao , Jiri Pirko , Paolo Abeni , Sasha Levin Subject: [PATCH 4.19 451/521] caif: fix memory leak in cfctrl_linkup_request() Date: Mon, 16 Jan 2023 16:51:53 +0100 Message-Id: <20230116154907.290622706@linuxfoundation.org> X-Mailer: git-send-email 2.39.0 In-Reply-To: <20230116154847.246743274@linuxfoundation.org> References: <20230116154847.246743274@linuxfoundation.org> User-Agent: quilt/0.67 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Zhengchao Shao [ Upstream commit fe69230f05897b3de758427b574fc98025dfc907 ] When linktype is unknown or kzalloc failed in cfctrl_linkup_request(), pkt is not released. Add release process to error path. Fixes: b482cd2053e3 ("net-caif: add CAIF core protocol stack") Fixes: 8d545c8f958f ("caif: Disconnect without waiting for response") Signed-off-by: Zhengchao Shao Reviewed-by: Jiri Pirko Link: https://lore.kernel.org/r/20230104065146.1153009-1-shaozhengchao@huawei.com Signed-off-by: Paolo Abeni Signed-off-by: Sasha Levin --- net/caif/cfctrl.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/net/caif/cfctrl.c b/net/caif/cfctrl.c index a1e85f032108..330cb2b087bb 100644 --- a/net/caif/cfctrl.c +++ b/net/caif/cfctrl.c @@ -269,11 +269,15 @@ int cfctrl_linkup_request(struct cflayer *layer, default: pr_warn("Request setup of bad link type = %d\n", param->linktype); + cfpkt_destroy(pkt); return -EINVAL; } req = kzalloc(sizeof(*req), GFP_KERNEL); - if (!req) + if (!req) { + cfpkt_destroy(pkt); return -ENOMEM; + } + req->client_layer = user_layer; req->cmd = CFCTRL_CMD_LINK_SETUP; req->param = *param; -- 2.35.1