From patchwork Tue Sep 17 11:43:13 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stefan Hajnoczi X-Patchwork-Id: 13806148 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org 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 smtp.lore.kernel.org (Postfix) with ESMTPS id A0C05C36019 for ; Tue, 17 Sep 2024 11:46:26 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1sqWda-0004GF-IE; Tue, 17 Sep 2024 07:44:54 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1sqWdZ-0004B1-8G for qemu-devel@nongnu.org; Tue, 17 Sep 2024 07:44:53 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.129.124]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1sqWdX-0001hs-T2 for qemu-devel@nongnu.org; Tue, 17 Sep 2024 07:44:53 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1726573491; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=0hl4fs5RZqZqahC6uPbPpXv4+BsjwiXseHkWVPvs8Bs=; b=PAbQmORSmycyaKi0+3YPOdtJu6qsb+k7EaXk/PJAhRgor83CH1fCBOnw5phsGKFxMsu1Ba KqNR82og/OJXbZz86YAkSiN2B4+YzwBhazORms0gGEIDR4IN2g4DpEqG6oGkMbxskISrdu dttZ75QtCPUilMiUOMPBJoeWi1zIKhI= Received: from mx-prod-mc-03.mail-002.prod.us-west-2.aws.redhat.com (ec2-54-186-198-63.us-west-2.compute.amazonaws.com [54.186.198.63]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-205-FuHLSCK7MI-sksGiAsPrpQ-1; Tue, 17 Sep 2024 07:44:47 -0400 X-MC-Unique: FuHLSCK7MI-sksGiAsPrpQ-1 Received: from mx-prod-int-03.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-03.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.12]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mx-prod-mc-03.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id E62F01955F3E; Tue, 17 Sep 2024 11:44:46 +0000 (UTC) Received: from localhost (unknown [10.2.16.70]) by mx-prod-int-03.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP id 3098E19560AA; Tue, 17 Sep 2024 11:44:44 +0000 (UTC) From: Stefan Hajnoczi To: qemu-devel@nongnu.org Cc: Peter Maydell , Stefan Hajnoczi , Hanna Reitz , "Michael S. Tsirkin" , Kevin Wolf , qemu-block@nongnu.org, Dmitry Frolov Subject: [PULL 1/1] hw/block: fix uint32 overflow Date: Tue, 17 Sep 2024 13:43:13 +0200 Message-ID: <20240917114313.616836-2-stefanha@redhat.com> In-Reply-To: <20240917114313.616836-1-stefanha@redhat.com> References: <20240917114313.616836-1-stefanha@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.0 on 10.30.177.12 Received-SPF: pass client-ip=170.10.129.124; envelope-from=stefanha@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=unavailable autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org From: Dmitry Frolov The product bs->bl.zone_size * (bs->bl.nr_zones - 1) may overflow uint32. Found by Linux Verification Center (linuxtesting.org) with SVACE. Signed-off-by: Dmitry Frolov Message-id: 20240917080356.270576-2-frolov@swemel.ru Signed-off-by: Stefan Hajnoczi --- hw/block/virtio-blk.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/hw/block/virtio-blk.c b/hw/block/virtio-blk.c index 73bdfd6122..115795392c 100644 --- a/hw/block/virtio-blk.c +++ b/hw/block/virtio-blk.c @@ -700,7 +700,7 @@ static int virtio_blk_handle_zone_mgmt(VirtIOBlockReq *req, BlockZoneOp op) } else { if (bs->bl.zone_size > capacity - offset) { /* The zoned device allows the last smaller zone. */ - len = capacity - bs->bl.zone_size * (bs->bl.nr_zones - 1); + len = capacity - bs->bl.zone_size * (bs->bl.nr_zones - 1ull); } else { len = bs->bl.zone_size; }