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=-6.9 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS 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 04CE7C83004 for ; Wed, 29 Apr 2020 07:28:32 +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 C643C2076B for ; Wed, 29 Apr 2020 07:28:31 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="MgQPxevO" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org C643C2076B 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+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:48608 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jTh8w-0003hS-SY for qemu-devel@archiver.kernel.org; Wed, 29 Apr 2020 03:28:30 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:46164) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jTh1v-0007ti-Vk for qemu-devel@nongnu.org; Wed, 29 Apr 2020 03:22:14 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.90_1) (envelope-from ) id 1jTh1g-0003wW-Iu for qemu-devel@nongnu.org; Wed, 29 Apr 2020 03:21:15 -0400 Received: from us-smtp-delivery-1.mimecast.com ([205.139.110.120]:38445 helo=us-smtp-1.mimecast.com) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.90_1) (envelope-from ) id 1jTh1f-0003u4-Ps for qemu-devel@nongnu.org; Wed, 29 Apr 2020 03:20:59 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1588144856; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=PhhhUudLUbRStHxYbTEaO9gPqZJVt40K2eleSR+HyVE=; b=MgQPxevOY2zlrL6xKxk3njT7KuJ0ZL2nQBndXvsbpEqs6pW67RkBJ0Wvv0Mg46k61jWzAj GtdrVKC33vW9ocnb2mmTlf7xB5N34Ra4WG7ccvUzWNscKG71s69lhGvv9YX0RJIFUpfoCl CpFyrj2oQTcGm7rFLbIfAFZ0HLyV1Bc= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-506-UV-j63ukPdaHtcS_9EJg1g-1; Wed, 29 Apr 2020 03:20:54 -0400 X-MC-Unique: UV-j63ukPdaHtcS_9EJg1g-1 Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.phx2.redhat.com [10.5.11.13]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id A9FED801504 for ; Wed, 29 Apr 2020 07:20:53 +0000 (UTC) Received: from blackfin.pond.sub.org (ovpn-113-6.ams2.redhat.com [10.36.113.6]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 794EA648DF; Wed, 29 Apr 2020 07:20:53 +0000 (UTC) Received: by blackfin.pond.sub.org (Postfix, from userid 1000) id 41F8411358D1; Wed, 29 Apr 2020 09:20:49 +0200 (CEST) From: Markus Armbruster To: qemu-devel@nongnu.org Subject: [PULL 20/32] io: Fix qio_channel_socket_close() error handling Date: Wed, 29 Apr 2020 09:20:36 +0200 Message-Id: <20200429072048.29963-21-armbru@redhat.com> In-Reply-To: <20200429072048.29963-1-armbru@redhat.com> References: <20200429072048.29963-1-armbru@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.13 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Received-SPF: pass client-ip=205.139.110.120; envelope-from=armbru@redhat.com; helo=us-smtp-1.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/04/29 01:42:37 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] X-Received-From: 205.139.110.120 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: =?UTF-8?q?Daniel=20P=20=2E=20Berrang=C3=A9?= Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" The Error ** argument must be NULL, &error_abort, &error_fatal, or a pointer to a variable containing NULL. Passing an argument of the latter kind twice without clearing it in between is wrong: if the first call sets an error, it no longer points to NULL for the second call. qio_channel_socket_close() passes @errp first to socket_listen_cleanup(), and then, if closesocket() fails, to error_setg_errno(). If socket_listen_cleanup() failed, this will trip the assertion in error_setv(). Fix by ignoring a second error. Fixes: 73564c407caedf992a1c688b5fea776a8b56ba2a Cc: Daniel P. Berrang=C3=A9 Signed-off-by: Markus Armbruster Reviewed-by: Daniel P. Berrang=C3=A9 Message-Id: <20200422130719.28225-11-armbru@redhat.com> --- io/channel-socket.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/io/channel-socket.c b/io/channel-socket.c index b74f5b92a0..e1b4667087 100644 --- a/io/channel-socket.c +++ b/io/channel-socket.c @@ -704,6 +704,7 @@ qio_channel_socket_close(QIOChannel *ioc, { QIOChannelSocket *sioc =3D QIO_CHANNEL_SOCKET(ioc); int rc =3D 0; + Error *err =3D NULL; =20 if (sioc->fd !=3D -1) { #ifdef WIN32 @@ -715,8 +716,8 @@ qio_channel_socket_close(QIOChannel *ioc, =20 if (closesocket(sioc->fd) < 0) { sioc->fd =3D -1; - error_setg_errno(errp, errno, - "Unable to close socket"); + error_setg_errno(&err, errno, "Unable to close socket"); + error_propagate(errp, err); return -1; } sioc->fd =3D -1; --=20 2.21.1