From patchwork Fri Oct 7 02:01:28 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Zhipeng Lu X-Patchwork-Id: 13000844 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 lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id A3527C433FE for ; Fri, 7 Oct 2022 02:03:13 +0000 (UTC) Received: from localhost ([::1]:50786 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1ogchk-0001mn-0h for qemu-devel@archiver.kernel.org; Thu, 06 Oct 2022 22:03:12 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:50938) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1ogcgr-000136-SR for qemu-devel@nongnu.org; Thu, 06 Oct 2022 22:02:17 -0400 Received: from [106.39.185.57] (port=39228 helo=smtp.cecloud.com) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1ogcgo-0000Qf-U3 for qemu-devel@nongnu.org; Thu, 06 Oct 2022 22:02:17 -0400 Received: from localhost (localhost [127.0.0.1]) by smtp.cecloud.com (Postfix) with ESMTP id 437B1FC0203; Fri, 7 Oct 2022 10:02:05 +0800 (CST) X-MAIL-GRAY: 0 X-MAIL-DELIVERY: 1 X-ANTISPAM-LEVEL: 2 X-ABS-CHECKED: 0 Received: from localhost.localdomain (unknown [110.188.55.41]) by smtp.cecloud.com (postfix) whith ESMTP id P51403T281471112442224S1665108122326090_; Fri, 07 Oct 2022 10:02:05 +0800 (CST) X-UNIQUE-TAG: X-RL-SENDER: luzhipeng@cestc.cn X-SENDER: luzhipeng@cestc.cn X-LOGIN-NAME: luzhipeng@cestc.cn X-FST-TO: qemu-devel@nongnu.org X-RCPT-COUNT: 3 X-SENDER-IP: 110.188.55.41 X-ATTACHMENT-NUM: 0 X-System-Flag: 0 From: luzhipeng To: qemu-devel Cc: Viktor Prutyanov , lu zhipeng Subject: [PATCH RESEND] elf2dmp: free memory in failure Date: Fri, 7 Oct 2022 10:01:28 +0800 Message-Id: <20221007020128.760-1-luzhipeng@cestc.cn> X-Mailer: git-send-email 2.34.0.windows.1 MIME-Version: 1.0 X-Host-Lookup-Failed: Reverse DNS lookup failed for 106.39.185.57 (failed) Received-SPF: pass client-ip=106.39.185.57; envelope-from=luzhipeng@cestc.cn; helo=smtp.cecloud.com X-Spam_score_int: -10 X-Spam_score: -1.1 X-Spam_bar: - X-Spam_report: (-1.1 / 5.0 requ) BAYES_00=-1.9, RDNS_NONE=0.793, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" From: lu zhipeng The 'kdgb' is allocating memory in get_kdbg(), but it is not freed in error path. So fix that. Signed-off-by: lu zhipeng Reviewed-by: Viktor Prutyanov --- contrib/elf2dmp/main.c | 1 + 1 file changed, 1 insertion(+) diff --git a/contrib/elf2dmp/main.c b/contrib/elf2dmp/main.c index b9fc6d230c..d77b8f98f7 100644 --- a/contrib/elf2dmp/main.c +++ b/contrib/elf2dmp/main.c @@ -125,6 +125,7 @@ static KDDEBUGGER_DATA64 *get_kdbg(uint64_t KernBase, struct pdb_reader *pdb, if (va_space_rw(vs, KdDebuggerDataBlock, kdbg, kdbg_hdr.Size, 0)) { eprintf("Failed to extract entire KDBG\n"); + free(kdbg); return NULL; }