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=-15.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,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 AF6D9C433ED for ; Tue, 13 Apr 2021 06:48:57 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 8C702613AE for ; Tue, 13 Apr 2021 06:48:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1345072AbhDMGtP (ORCPT ); Tue, 13 Apr 2021 02:49:15 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]:49607 "EHLO us-smtp-delivery-124.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S244532AbhDMGtI (ORCPT ); Tue, 13 Apr 2021 02:49:08 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1618296528; 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=GJP8fy7iKl8dKDV7E0klDhAvK0oVKdzafF/dYILoImU=; b=LJI7/2S4imkvlvRrVQ0QleTE9OcAjzjNrDZF3FRxbM/AFLaKjc2b5H2GOqFaIJ7tB9oQx3 fuZNVIz6ucxp1AAywhCSGSpiEnhQ70XFXBrRtIhQvNDqUTOrvtIiwXXN8DzSdxYHhN0JmA YZRKA5JvsHarYk7nDzVoDfNxbhcGchM= 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-48-uCC3GaStOo-ZktgeWFkllg-1; Tue, 13 Apr 2021 02:48:44 -0400 X-MC-Unique: uCC3GaStOo-ZktgeWFkllg-1 Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.11]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id B3C7A18766D4; Tue, 13 Apr 2021 06:48:42 +0000 (UTC) Received: from gondolin (ovpn-113-97.ams2.redhat.com [10.36.113.97]) by smtp.corp.redhat.com (Postfix) with ESMTP id 094F96062F; Tue, 13 Apr 2021 06:48:36 +0000 (UTC) Date: Tue, 13 Apr 2021 08:48:34 +0200 From: Cornelia Huck To: "Christian A. Ehrhardt" Cc: kvm@vger.kernel.org, linux-kernel@vger.kernel.org, Alex Williamson , Alexey Kardashevskiy , David Gibson , Michael Ellerman Subject: Re: [PATCH] vfio/pci: Add missing range check in vfio_pci_mmap Message-ID: <20210413084834.1d5cd6cb.cohuck@redhat.com> In-Reply-To: <20210412214124.GA241759@lisa.in-ulm.de> References: <20210410230013.GC416417@lisa.in-ulm.de> <20210412140238.184e141f@omen> <20210412214124.GA241759@lisa.in-ulm.de> Organization: Red Hat GmbH MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Scanned-By: MIMEDefang 2.79 on 10.5.11.11 Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org On Mon, 12 Apr 2021 23:41:24 +0200 "Christian A. Ehrhardt" wrote: > When mmaping an extra device region verify that the region index > derived from the mmap offset is valid. > > Fixes: a15b1883fee1 ("vfio_pci: Allow mapping extra regions") > Cc: stable@vger.kernel.org > Signed-off-by: Christian A. Ehrhardt > --- > drivers/vfio/pci/vfio_pci.c | 4 +++- > 1 file changed, 3 insertions(+), 1 deletion(-) Reviewed-by: Cornelia Huck