From patchwork Fri Mar 12 06:16:22 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Jason Wang X-Patchwork-Id: 12133743 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=-13.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 230F6C433E0 for ; Fri, 12 Mar 2021 06:23:07 +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 71E2C64F84 for ; Fri, 12 Mar 2021 06:23:06 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 71E2C64F84 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]:38510 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lKbCT-0001WC-GF for qemu-devel@archiver.kernel.org; Fri, 12 Mar 2021 01:23:05 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:60618) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lKb6h-0000e7-KW for qemu-devel@nongnu.org; Fri, 12 Mar 2021 01:17:07 -0500 Received: from us-smtp-delivery-124.mimecast.com ([216.205.24.124]:59029) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.90_1) (envelope-from ) id 1lKb6f-0005xg-R8 for qemu-devel@nongnu.org; Fri, 12 Mar 2021 01:17:07 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1615529825; 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=/ENnQUGZLLVogXHtCtzqE57XhBQnjWTcfqvtIxe9h40=; b=L/pUhsmjuUv2vhaUasXp1V7ITEal0AUxeYgFnDGNQ0gCAGUI5+wqGcbRP4VHr1E06dXU4A mtBhWhJ1Z0ceDnGCsNJ96kONgOxgmMa6gVObGyHrQewJN+elb+6ljwvy4F2SFkF6CXRY6l OPdYuxjnwCksShfQbl4vudnd1K2CrTo= 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-257-mutwWIaGPT2INO1PDjrgdQ-1; Fri, 12 Mar 2021 01:17:00 -0500 X-MC-Unique: mutwWIaGPT2INO1PDjrgdQ-1 Received: from smtp.corp.redhat.com (int-mx07.intmail.prod.int.phx2.redhat.com [10.5.11.22]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 14CF418397A2; Fri, 12 Mar 2021 06:16:59 +0000 (UTC) Received: from jason-ThinkPad-T430s.redhat.com (ovpn-12-126.pek2.redhat.com [10.72.12.126]) by smtp.corp.redhat.com (Postfix) with ESMTP id C0B71101F501; Fri, 12 Mar 2021 06:16:56 +0000 (UTC) From: Jason Wang To: peter.maydell@linaro.org Subject: [PULL 12/16] rtl8139: switch to use qemu_receive_packet() for loopback Date: Fri, 12 Mar 2021 14:16:22 +0800 Message-Id: <1615529786-30763-13-git-send-email-jasowang@redhat.com> In-Reply-To: <1615529786-30763-1-git-send-email-jasowang@redhat.com> References: <1615529786-30763-1-git-send-email-jasowang@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.84 on 10.5.11.22 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=jasowang@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Received-SPF: pass client-ip=216.205.24.124; envelope-from=jasowang@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -29 X-Spam_score: -3.0 X-Spam_bar: --- X-Spam_report: (-3.0 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.25, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=unavailable autolearn_force=no X-Spam_action: no action 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: Jason Wang , Alexander Bulekov , qemu-stable@nongnu.org, qemu-devel@nongnu.org, Prasad J Pandit Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" From: Alexander Bulekov This patch switches to use qemu_receive_packet() which can detect reentrancy and return early. This is intended to address CVE-2021-3416. Cc: Prasad J Pandit Cc: qemu-stable@nongnu.org Buglink: https://bugs.launchpad.net/qemu/+bug/1910826 Reviewed-by: Philippe Mathieu-Daudé Signed-off-by: Jason Wang --- hw/net/rtl8139.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/hw/net/rtl8139.c b/hw/net/rtl8139.c index 4675ac8..90b4fc6 100644 --- a/hw/net/rtl8139.c +++ b/hw/net/rtl8139.c @@ -1795,7 +1795,7 @@ static void rtl8139_transfer_frame(RTL8139State *s, uint8_t *buf, int size, } DPRINTF("+++ transmit loopback mode\n"); - rtl8139_do_receive(qemu_get_queue(s->nic), buf, size, do_interrupt); + qemu_receive_packet(qemu_get_queue(s->nic), buf, size); if (iov) { g_free(buf2);