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=-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 20FFCC433E0 for ; Fri, 12 Mar 2021 06:20:45 +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 9E6B964F85 for ; Fri, 12 Mar 2021 06:20:44 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 9E6B964F85 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]:57210 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lKbAB-0005uO-Lk for qemu-devel@archiver.kernel.org; Fri, 12 Mar 2021 01:20:43 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:60482) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lKb6T-0000LD-UE for qemu-devel@nongnu.org; Fri, 12 Mar 2021 01:16:53 -0500 Received: from us-smtp-delivery-124.mimecast.com ([216.205.24.124]:25590) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.90_1) (envelope-from ) id 1lKb6S-0005nU-Ae for qemu-devel@nongnu.org; Fri, 12 Mar 2021 01:16:53 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1615529811; 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=qKE7TWyoGxDr+8pHmWsEJIClKHQdRsabnkAaiD6An8s=; b=G3nPzjpMxDm3Riwq+Tl8ekYl5UxG7AIJhIdqvGKy+C8WnIeCcLYWpPgWr0utAMMjQmfK8E DqASWY/XI2ii4IycXqEA2onOhjDTrqASpfMenYcqUhyrKD25I6dpIl+LmhoDdbRSTtC6Ox RIQo/tFMCdH7OxCfW1hOY5ZR26BtCNg= 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-335-IGsKzhubPLmH5hSFrzp0ZA-1; Fri, 12 Mar 2021 01:16:50 -0500 X-MC-Unique: IGsKzhubPLmH5hSFrzp0ZA-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 D9F421005E6C; Fri, 12 Mar 2021 06:16:48 +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 EAA4C101F501; Fri, 12 Mar 2021 06:16:46 +0000 (UTC) From: Jason Wang To: peter.maydell@linaro.org Subject: [PULL 08/16] dp8393x: switch to use qemu_receive_packet() for loopback packet Date: Fri, 12 Mar 2021 14:16:18 +0800 Message-Id: <1615529786-30763-9-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 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 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=ham 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 , 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" 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 Reviewed-by: Philippe Mathieu-Daudé --- hw/net/dp8393x.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/hw/net/dp8393x.c b/hw/net/dp8393x.c index 205c0de..533a830 100644 --- a/hw/net/dp8393x.c +++ b/hw/net/dp8393x.c @@ -506,7 +506,7 @@ static void dp8393x_do_transmit_packets(dp8393xState *s) s->regs[SONIC_TCR] |= SONIC_TCR_CRSL; if (nc->info->can_receive(nc)) { s->loopback_packet = 1; - nc->info->receive(nc, s->tx_buffer, tx_len); + qemu_receive_packet(nc, s->tx_buffer, tx_len); } } else { /* Transmit packet */ -- 2.7.4