From patchwork Mon May 3 13:29:14 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Gerd Hoffmann X-Patchwork-Id: 1473198 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) Authentication-Results: ozlabs.org; dkim=fail reason="signature verification failed" (1024-bit key; unprotected) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256 header.s=mimecast20190719 header.b=KiOQJ7zH; dkim-atps=neutral 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 ozlabs.org (Postfix) with ESMTPS id 4FYkWN0gzxz9s1l for ; Mon, 3 May 2021 23:35:41 +1000 (AEST) Received: from localhost ([::1]:51246 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1ldYja-0000iI-PZ for incoming@patchwork.ozlabs.org; Mon, 03 May 2021 09:35:38 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:42800) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1ldYdi-0005OG-7b for qemu-devel@nongnu.org; Mon, 03 May 2021 09:29:34 -0400 Received: from us-smtp-delivery-124.mimecast.com ([216.205.24.124]:36047) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1ldYdf-0000dt-6T for qemu-devel@nongnu.org; Mon, 03 May 2021 09:29:33 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1620048570; 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=n4IuX5mGBxhSoUNBaK2iWkP/sAnynBLyfTGs307GZHs=; b=KiOQJ7zHFh8bOuNVodO9qVlt4ERx3HJNiHeZ0+LOGzHXToRHRDpz3h+EAHyDXGRGIvcyEc L3bFipdnhBsOj35RjfjkOryWd5qqF2aOiFqKLWNruXbWhcyIDcfFKXKddV93GrdVMe0ilH IDNUeybDXJdP0C+5yp5ijR9s/jxlVog= 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-115-fzzJx5HsMX6sMFZKHrDENw-1; Mon, 03 May 2021 09:29:27 -0400 X-MC-Unique: fzzJx5HsMX6sMFZKHrDENw-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 13ECA802E9F; Mon, 3 May 2021 13:29:26 +0000 (UTC) Received: from sirius.home.kraxel.org (ovpn-112-203.ams2.redhat.com [10.36.112.203]) by smtp.corp.redhat.com (Postfix) with ESMTPS id B96191001901; Mon, 3 May 2021 13:29:25 +0000 (UTC) Received: by sirius.home.kraxel.org (Postfix, from userid 1000) id BE4231CEC738; Mon, 3 May 2021 15:29:15 +0200 (CEST) From: Gerd Hoffmann To: qemu-devel@nongnu.org Subject: [PATCH v2 4/5] usb/xhci: sanity check packet size Date: Mon, 3 May 2021 15:29:14 +0200 Message-Id: <20210503132915.2335822-5-kraxel@redhat.com> In-Reply-To: <20210503132915.2335822-1-kraxel@redhat.com> References: <20210503132915.2335822-1-kraxel@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=kraxel@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Received-SPF: pass client-ip=216.205.24.124; envelope-from=kraxel@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -34 X-Spam_score: -3.5 X-Spam_bar: --- X-Spam_report: (-3.5 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.698, 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_H4=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: mcascell@redhat.com, remy.noel@blade-group.com, philmd@redhat.com, Gerd Hoffmann Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" Make sure the usb packet size is within the bounds of the endpoint configuration. Signed-off-by: Gerd Hoffmann --- hw/usb/hcd-xhci.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/hw/usb/hcd-xhci.c b/hw/usb/hcd-xhci.c index 46212b1e695a..7acfb8137bc9 100644 --- a/hw/usb/hcd-xhci.c +++ b/hw/usb/hcd-xhci.c @@ -1568,6 +1568,11 @@ static int xhci_setup_packet(XHCITransfer *xfer) qemu_sglist_destroy(&xfer->sgl); return -1; } + if (xfer->packet.iov.size > ep->max_packet_size) { + usb_packet_unmap(&xfer->packet, &xfer->sgl); + qemu_sglist_destroy(&xfer->sgl); + return -1; + } DPRINTF("xhci: setup packet pid 0x%x addr %d ep %d\n", xfer->packet.pid, ep->dev->addr, ep->nr); return 0;