From patchwork Thu Sep 14 11:46:27 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jinjie Ruan X-Patchwork-Id: 723820 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 A30A2EDE9A4 for ; Thu, 14 Sep 2023 11:47:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235777AbjINLrb (ORCPT ); Thu, 14 Sep 2023 07:47:31 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44796 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234334AbjINLrb (ORCPT ); Thu, 14 Sep 2023 07:47:31 -0400 Received: from szxga01-in.huawei.com (szxga01-in.huawei.com [45.249.212.187]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6DFE79B for ; Thu, 14 Sep 2023 04:47:27 -0700 (PDT) Received: from kwepemi500008.china.huawei.com (unknown [172.30.72.54]) by szxga01-in.huawei.com (SkyGuard) with ESMTP id 4Rmb9L5XgmzgZg8; Thu, 14 Sep 2023 19:45:26 +0800 (CST) Received: from huawei.com (10.90.53.73) by kwepemi500008.china.huawei.com (7.221.188.139) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.31; Thu, 14 Sep 2023 19:47:25 +0800 From: Jinjie Ruan To: , , , , , , , , Ruan Jinjie Subject: [PATCH 2/4] kunit: Fix the wrong kfree of copy for kunit_filter_suites() Date: Thu, 14 Sep 2023 19:46:27 +0800 Message-ID: <20230914114629.1517650-3-ruanjinjie@huawei.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230914114629.1517650-1-ruanjinjie@huawei.com> References: <20230914114629.1517650-1-ruanjinjie@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.90.53.73] X-ClientProxiedBy: dggems702-chm.china.huawei.com (10.3.19.179) To kwepemi500008.china.huawei.com (7.221.188.139) X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-kselftest@vger.kernel.org If the outer layer for loop is iterated more than once and it fails not in the first iteration, the copy pointer has been moved. So it should free the original copy's backup copy_start. Fixes: abbf73816b6f ("kunit: fix possible memory leak in kunit_filter_suites()") Signed-off-by: Jinjie Ruan --- lib/kunit/executor.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/lib/kunit/executor.c b/lib/kunit/executor.c index a037a46fae5e..9358ed2df839 100644 --- a/lib/kunit/executor.c +++ b/lib/kunit/executor.c @@ -243,7 +243,7 @@ kunit_filter_suites(const struct kunit_suite_set *suite_set, free_copy: if (*err) - kfree(copy); + kfree(copy_start); return filtered; }