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=-10.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable 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 03DA8CA9EC5 for ; Wed, 30 Oct 2019 15:57:41 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id BDB2121906 for ; Wed, 30 Oct 2019 15:57:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1572451060; bh=5bbqgN1Cw/V6GGZu8+bxYO4nKNJ+N7NjBGYiUB3inXQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=BmQ2dO2MKunqtZrTUB9lZKuCG4qIo2LNdUbcryBZewXLmqdtmtVf3YsZwmwkHoBjs cqo19Zn6vgRCwc1C685PbFunfames9AE8IMJVgbz7g4i7vIF+JDTJjIDKcAiR7QtW7 0BHnOBjTYqUKuzD867VeECt4MaJyTc9/SUYKqNkA= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729123AbfJ3P5j (ORCPT ); Wed, 30 Oct 2019 11:57:39 -0400 Received: from mail.kernel.org ([198.145.29.99]:59232 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729093AbfJ3P5f (ORCPT ); Wed, 30 Oct 2019 11:57:35 -0400 Received: from sasha-vm.mshome.net (100.50.158.77.rev.sfr.net [77.158.50.100]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 90BBD217F9; Wed, 30 Oct 2019 15:57:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1572451054; bh=5bbqgN1Cw/V6GGZu8+bxYO4nKNJ+N7NjBGYiUB3inXQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=QDB6uQF8fl2ITz7bpxzndwFBblLNXLsXBjH43ccMFt0wdqs5iBjZeq8JY4vGsOLlc 5yHHv0Bpgv5HvDBWiOHFyxA0O+xyh+zOtimsqmTciaeqBFfIFXXbqLZP4N3dwoIsyT bF0euoYQ3vupu8Hd3oe7DFYqxE3bEeg9i19Uo61o= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Yunfeng Ye , Alexander Shishkin , Feilong Lin , Hu Shiyuan , Jiri Olsa , Mark Rutland , Namhyung Kim , Peter Zijlstra , Arnaldo Carvalho de Melo , Sasha Levin Subject: [PATCH AUTOSEL 4.9 13/18] perf kmem: Fix memory leak in compact_gfp_flags() Date: Wed, 30 Oct 2019 11:56:55 -0400 Message-Id: <20191030155700.10748-13-sashal@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20191030155700.10748-1-sashal@kernel.org> References: <20191030155700.10748-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Yunfeng Ye [ Upstream commit 1abecfcaa7bba21c9985e0136fa49836164dd8fd ] The memory @orig_flags is allocated by strdup(), it is freed on the normal path, but leak to free on the error path. Fix this by adding free(orig_flags) on the error path. Fixes: 0e11115644b3 ("perf kmem: Print gfp flags in human readable string") Signed-off-by: Yunfeng Ye Cc: Alexander Shishkin Cc: Feilong Lin Cc: Hu Shiyuan Cc: Jiri Olsa Cc: Mark Rutland Cc: Namhyung Kim Cc: Peter Zijlstra Link: http://lore.kernel.org/lkml/f9e9f458-96f3-4a97-a1d5-9feec2420e07@huawei.com Signed-off-by: Arnaldo Carvalho de Melo Signed-off-by: Sasha Levin --- tools/perf/builtin-kmem.c | 1 + 1 file changed, 1 insertion(+) diff --git a/tools/perf/builtin-kmem.c b/tools/perf/builtin-kmem.c index d426dcb18ce9a..496a4ca116671 100644 --- a/tools/perf/builtin-kmem.c +++ b/tools/perf/builtin-kmem.c @@ -674,6 +674,7 @@ static char *compact_gfp_flags(char *gfp_flags) new = realloc(new_flags, len + strlen(cpt) + 2); if (new == NULL) { free(new_flags); + free(orig_flags); return NULL; } -- 2.20.1