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=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,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 AD085C4743C for ; Wed, 23 Jun 2021 11:12:54 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 881A56102A for ; Wed, 23 Jun 2021 11:12:54 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230163AbhFWLPK (ORCPT ); Wed, 23 Jun 2021 07:15:10 -0400 Received: from mail.netfilter.org ([217.70.188.207]:60454 "EHLO mail.netfilter.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230031AbhFWLPK (ORCPT ); Wed, 23 Jun 2021 07:15:10 -0400 Received: from localhost.localdomain (unknown [90.77.255.23]) by mail.netfilter.org (Postfix) with ESMTPSA id 66C3F6423C for ; Wed, 23 Jun 2021 13:11:27 +0200 (CEST) From: Pablo Neira Ayuso To: netfilter-devel@vger.kernel.org Subject: [PATCH nft] parser_bison: string memleak when datatype is incorrect Date: Wed, 23 Jun 2021 13:12:49 +0200 Message-Id: <20210623111249.30742-1-pablo@netfilter.org> X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: netfilter-devel@vger.kernel.org # cat test.nft table x { map test { type ipv4_addr . foo . inet_service : ipv4_addr . inet_service } } # nft -f test.nft test.nft:3:20-22: Error: unknown datatype foo type ipv4_addr . foo . inet_service : ipv4_addr . inet_service ^^^ test.nft:6-9: Error: set definition does not specify key map test { ^^^^ ==29692==ERROR: LeakSanitizer: detected memory leaks Direct leak of 5 byte(s) in 1 object(s) allocated from: #0 0x7f6c869e8810 in strdup (/usr/lib/x86_64-linux-gnu/libasan.so.5+0x3a810) #1 0x7f6c8637f63a in xstrdup /home/test/nftables/src/utils.c:85 #2 0x7f6c8648a4d3 in nft_lex /home/test/nftables/src/scanner.l:740 Signed-off-by: Pablo Neira Ayuso --- src/parser_bison.y | 1 + 1 file changed, 1 insertion(+) diff --git a/src/parser_bison.y b/src/parser_bison.y index c31cc4e7ea8f..2f895bfb35af 100644 --- a/src/parser_bison.y +++ b/src/parser_bison.y @@ -2162,6 +2162,7 @@ data_type_atom_expr : type_identifier if (dtype == NULL) { erec_queue(error(&@1, "unknown datatype %s", $1), state->msgs); + xfree($1); YYERROR; } $$ = constant_expr_alloc(&@1, dtype, dtype->byteorder, -- 2.20.1