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 X-Spam-Level: X-Spam-Status: No, score=-9.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7AF0DC43215 for ; Tue, 3 Dec 2019 22:55:38 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 4D96020863 for ; Tue, 3 Dec 2019 22:55:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1575413738; bh=aBGta1FQVU8aqNnb8OLhtCuBnkmaBwv/fVv+4IHTpmw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=nTP5Ub5Ssj0ZeXM+ijHGFVZsFuzWuSJc0DWS4KicHh8XJNRiIRfRkc2WULS9P+T2b HeZ+gvwStwZm+O/56ZfhcIoz4IBa5kPaKO4UDzCAwG2+cfOY1whgbyXPSOOerN/gzq eAoeZm7CZ3Q0LJvwn+KLeeV/3L/v4iFYAQ5i1biE= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730365AbfLCWzh (ORCPT ); Tue, 3 Dec 2019 17:55:37 -0500 Received: from mail.kernel.org ([198.145.29.99]:50022 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730348AbfLCWze (ORCPT ); Tue, 3 Dec 2019 17:55:34 -0500 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 328F320674; Tue, 3 Dec 2019 22:55:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1575413733; bh=aBGta1FQVU8aqNnb8OLhtCuBnkmaBwv/fVv+4IHTpmw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Sid4ZfhpcjjXdrXVr+G64ZnaOvJc/ltCjJmOJzZK/gVnVwiQBNYZKvLAOzV79e7EP mF9M6FjNpCqOwPuENDdoIF4AMkRcRIXQIiCdrPJHtbL6Vam/EbFCwIrzZhblBnxbQ8 Z4xavBT3gtLMXHrhc+RyxGXZhrikezW05NDWRHio= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, "Gustavo A. R. Silva" , Ying Xue , "David S. Miller" , Sasha Levin Subject: [PATCH 4.19 214/321] tipc: fix memory leak in tipc_nl_compat_publ_dump Date: Tue, 3 Dec 2019 23:34:40 +0100 Message-Id: <20191203223438.253860395@linuxfoundation.org> X-Mailer: git-send-email 2.24.0 In-Reply-To: <20191203223427.103571230@linuxfoundation.org> References: <20191203223427.103571230@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Gustavo A. R. Silva [ Upstream commit f87d8ad9233f115db92c6c087d58403b0009ed36 ] There is a memory leak in case genlmsg_put fails. Fix this by freeing *args* before return. Addresses-Coverity-ID: 1476406 ("Resource leak") Fixes: 46273cf7e009 ("tipc: fix a missing check of genlmsg_put") Signed-off-by: Gustavo A. R. Silva Acked-by: Ying Xue Signed-off-by: David S. Miller Signed-off-by: Sasha Levin --- net/tipc/netlink_compat.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/net/tipc/netlink_compat.c b/net/tipc/netlink_compat.c index fab0384d2b4b3..b4860084a8f56 100644 --- a/net/tipc/netlink_compat.c +++ b/net/tipc/netlink_compat.c @@ -983,8 +983,10 @@ static int tipc_nl_compat_publ_dump(struct tipc_nl_compat_msg *msg, u32 sock) hdr = genlmsg_put(args, 0, 0, &tipc_genl_family, NLM_F_MULTI, TIPC_NL_PUBL_GET); - if (!hdr) + if (!hdr) { + kfree_skb(args); return -EMSGSIZE; + } nest = nla_nest_start(args, TIPC_NLA_SOCK); if (!nest) { -- 2.20.1