From patchwork Tue Dec 15 17:54:18 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Paolo Bonzini X-Patchwork-Id: 1416650 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; dmarc=pass (p=none dis=none) header.from=redhat.com Authentication-Results: ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256 header.s=mimecast20190719 header.b=E2jo9W9v; 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 4CwRHl6zyzz9s0b for ; Wed, 16 Dec 2020 05:14:59 +1100 (AEDT) Received: from localhost ([::1]:50534 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kpEqg-0004sT-0M for incoming@patchwork.ozlabs.org; Tue, 15 Dec 2020 13:14:58 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:34270) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kpEXS-0003FL-SW for qemu-devel@nongnu.org; Tue, 15 Dec 2020 12:55:08 -0500 Received: from us-smtp-delivery-124.mimecast.com ([216.205.24.124]:22148) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.90_1) (envelope-from ) id 1kpEXJ-0001V1-SX for qemu-devel@nongnu.org; Tue, 15 Dec 2020 12:55:06 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1608054897; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=nNFikfxQoIJic238iMyL9wd8BQoibWfmcT27dXe60Z4=; b=E2jo9W9vTUxozhjS9mbUvoHrPJqRyuQh3DwNVid+cli/RoCbCW3gKUs9N8E3upzSnBEmyz BKj7IPW1ausC2ZY1+QoXBQyyPy0SE/muvz2ksJHSsuLC5v00x8ovDCWDagw4WC6T8mBzGD qZFp1xCEn82kb6VpOptlf5obavp5+Bc= 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-481-YFBnLCGJPmurvPObUca0ag-1; Tue, 15 Dec 2020 12:54:54 -0500 X-MC-Unique: YFBnLCGJPmurvPObUca0ag-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 ACF99107ACE6 for ; Tue, 15 Dec 2020 17:54:53 +0000 (UTC) Received: from virtlab701.virt.lab.eng.bos.redhat.com (virtlab701.virt.lab.eng.bos.redhat.com [10.19.152.228]) by smtp.corp.redhat.com (Postfix) with ESMTP id 722D5100238C for ; Tue, 15 Dec 2020 17:54:53 +0000 (UTC) From: Paolo Bonzini To: qemu-devel@nongnu.org Subject: [PULL 18/45] msix: assert that accesses are within bounds Date: Tue, 15 Dec 2020 12:54:18 -0500 Message-Id: <20201215175445.1272776-19-pbonzini@redhat.com> In-Reply-To: <20201215175445.1272776-1-pbonzini@redhat.com> References: <20201215175445.1272776-1-pbonzini@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=pbonzini@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Received-SPF: pass client-ip=216.205.24.124; envelope-from=pbonzini@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, 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=0.001, 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: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" This makes the testcase from the next patch fail. Signed-off-by: Paolo Bonzini --- hw/pci/msix.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/hw/pci/msix.c b/hw/pci/msix.c index 67e34f34d6..36491ee52b 100644 --- a/hw/pci/msix.c +++ b/hw/pci/msix.c @@ -179,6 +179,7 @@ static uint64_t msix_table_mmio_read(void *opaque, hwaddr addr, { PCIDevice *dev = opaque; + assert(addr + size <= dev->msix_entries_nr * PCI_MSIX_ENTRY_SIZE); return pci_get_long(dev->msix_table + addr); } @@ -189,6 +190,8 @@ static void msix_table_mmio_write(void *opaque, hwaddr addr, int vector = addr / PCI_MSIX_ENTRY_SIZE; bool was_masked; + assert(addr + size <= dev->msix_entries_nr * PCI_MSIX_ENTRY_SIZE); + was_masked = msix_is_masked(dev, vector); pci_set_long(dev->msix_table + addr, val); msix_handle_mask_update(dev, vector, was_masked);