From patchwork Thu Sep 12 13:45:47 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Kevin Wolf X-Patchwork-Id: 11143121 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id C194016B1 for ; Thu, 12 Sep 2019 13:56:09 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id A24AF20856 for ; Thu, 12 Sep 2019 13:56:09 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org A24AF20856 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Received: from localhost ([::1]:34754 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1i8PZw-0005VD-4s for patchwork-qemu-devel@patchwork.kernel.org; Thu, 12 Sep 2019 09:56:08 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:39075) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1i8PQd-0002e3-1e for qemu-devel@nongnu.org; Thu, 12 Sep 2019 09:46:32 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1i8PQb-0001KH-Qy for qemu-devel@nongnu.org; Thu, 12 Sep 2019 09:46:30 -0400 Received: from mx1.redhat.com ([209.132.183.28]:34680) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1i8PQZ-0001IG-6R; Thu, 12 Sep 2019 09:46:27 -0400 Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.11]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 43450C0546F2; Thu, 12 Sep 2019 13:46:26 +0000 (UTC) Received: from linux.fritz.box.com (ovpn-116-179.ams2.redhat.com [10.36.116.179]) by smtp.corp.redhat.com (Postfix) with ESMTP id 3EAEF600C8; Thu, 12 Sep 2019 13:46:23 +0000 (UTC) From: Kevin Wolf To: qemu-block@nongnu.org Date: Thu, 12 Sep 2019 15:45:47 +0200 Message-Id: <20190912134604.22019-6-kwolf@redhat.com> In-Reply-To: <20190912134604.22019-1-kwolf@redhat.com> References: <20190912134604.22019-1-kwolf@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.11 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.32]); Thu, 12 Sep 2019 13:46:26 +0000 (UTC) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 209.132.183.28 Subject: [Qemu-devel] [PULL 05/22] pr-manager: Fix invalid g_free() crash bug X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: kwolf@redhat.com, peter.maydell@linaro.org, qemu-devel@nongnu.org Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" From: Markus Armbruster pr_manager_worker() passes its @opaque argument to g_free(). Wrong; it points to pr_manager_worker()'s automatic @data. Broken when commit 2f3a7ab39be converted @data from heap- to stack-allocated. Fix by deleting the g_free(). Fixes: 2f3a7ab39bec4ba8022dc4d42ea641165b004e3e Cc: qemu-stable@nongnu.org Signed-off-by: Markus Armbruster Reviewed-by: Philippe Mathieu-Daudé Acked-by: Paolo Bonzini Signed-off-by: Kevin Wolf --- scsi/pr-manager.c | 1 - 1 file changed, 1 deletion(-) diff --git a/scsi/pr-manager.c b/scsi/pr-manager.c index ee43663576..0c866e8698 100644 --- a/scsi/pr-manager.c +++ b/scsi/pr-manager.c @@ -39,7 +39,6 @@ static int pr_manager_worker(void *opaque) int fd = data->fd; int r; - g_free(data); trace_pr_manager_run(fd, hdr->cmdp[0], hdr->cmdp[1]); /* The reference was taken in pr_manager_execute. */