From patchwork Wed Jul 1 15:04:13 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Gerd Hoffmann X-Patchwork-Id: 11636625 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 3B53C13B6 for ; Wed, 1 Jul 2020 15:05:54 +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 116E420760 for ; Wed, 1 Jul 2020 15:05:54 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="ZtgpFW3i" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 116E420760 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]:49148 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jqeJ7-00053g-4y for patchwork-qemu-devel@patchwork.kernel.org; Wed, 01 Jul 2020 11:05:53 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:49760) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1jqeHs-0003CP-17 for qemu-devel@nongnu.org; Wed, 01 Jul 2020 11:04:36 -0400 Received: from us-smtp-1.mimecast.com ([207.211.31.81]:23302 helo=us-smtp-delivery-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 1jqeHp-0001AF-UL for qemu-devel@nongnu.org; Wed, 01 Jul 2020 11:04:35 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1593615873; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:content-type:content-type:in-reply-to:in-reply-to: references:references; bh=bRci/7hrP0UO3OQ9dRPTIqaOOtW6qqS7pi8JMy6dkzw=; b=ZtgpFW3iHfwp39yNeTQ6mHwrp5g1kkUKs3Ko/55EwYfG/1IMEgYtjPou+i8gXXeVizAOuh 5n6JckFi0MNDaj7jLAnYz8ZoiuD5kfJm5I+dXUU+q1lNqNOpapfJ0AsGVWwk0VUOToAqVJ GXuGE1vHVWoOadaiCiVzoa/gz11iORk= 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-387-pc5sjBcGPfKyTFBZgxSgKQ-1; Wed, 01 Jul 2020 11:04:31 -0400 X-MC-Unique: pc5sjBcGPfKyTFBZgxSgKQ-1 Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.phx2.redhat.com [10.5.11.16]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 16152802ED4; Wed, 1 Jul 2020 15:04:30 +0000 (UTC) Received: from sirius.home.kraxel.org (ovpn-112-62.ams2.redhat.com [10.36.112.62]) by smtp.corp.redhat.com (Postfix) with ESMTP id 086265C557; Wed, 1 Jul 2020 15:04:26 +0000 (UTC) Received: by sirius.home.kraxel.org (Postfix, from userid 1000) id 4F6619D71; Wed, 1 Jul 2020 17:04:25 +0200 (CEST) From: Gerd Hoffmann To: qemu-devel@nongnu.org Subject: [PULL 01/13] sm501: Fix bounds checks Date: Wed, 1 Jul 2020 17:04:13 +0200 Message-Id: <20200701150425.13739-2-kraxel@redhat.com> In-Reply-To: <20200701150425.13739-1-kraxel@redhat.com> References: <20200701150425.13739-1-kraxel@redhat.com> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.16 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=207.211.31.81; envelope-from=kraxel@redhat.com; helo=us-smtp-delivery-1.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/07/01 00:56:58 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] X-Spam_score_int: -30 X-Spam_score: -3.1 X-Spam_bar: --- X-Spam_report: (-3.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-1, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H3=-0.01, RCVD_IN_MSPIKE_WL=-0.01, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=_AUTOLEARN 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: qemu-ppc@nongnu.org, Gerd Hoffmann Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" From: BALATON Zoltan We don't need to add width to pitch when calculating last point, that would reject valid ops within the card's local_mem. Fixes: b15a22bbcbe6a78dc3d88fe3134985e4cdd87de4 Signed-off-by: BALATON Zoltan Reviewed-by: Peter Maydell Message-id: ddb5781d12913bb9d6dbfd9e5b1e2b893e2b3e2d.1592686588.git.balaton@eik.bme.hu Signed-off-by: Gerd Hoffmann --- hw/display/sm501.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/hw/display/sm501.c b/hw/display/sm501.c index a7fc08c52b2b..5ceee4166f6b 100644 --- a/hw/display/sm501.c +++ b/hw/display/sm501.c @@ -723,8 +723,8 @@ static void sm501_2d_operation(SM501State *s) dst_y -= height - 1; } - if (dst_base >= get_local_mem_size(s) || dst_base + - (dst_x + width + (dst_y + height) * (dst_pitch + width)) * + if (dst_base >= get_local_mem_size(s) || + dst_base + (dst_x + width + (dst_y + height) * dst_pitch) * (1 << format) >= get_local_mem_size(s)) { qemu_log_mask(LOG_GUEST_ERROR, "sm501: 2D op dest is outside vram.\n"); return; @@ -749,8 +749,8 @@ static void sm501_2d_operation(SM501State *s) src_y -= height - 1; } - if (src_base >= get_local_mem_size(s) || src_base + - (src_x + width + (src_y + height) * (src_pitch + width)) * + if (src_base >= get_local_mem_size(s) || + src_base + (src_x + width + (src_y + height) * src_pitch) * (1 << format) >= get_local_mem_size(s)) { qemu_log_mask(LOG_GUEST_ERROR, "sm501: 2D op src is outside vram.\n");