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 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 76896C433F5 for ; Mon, 18 Oct 2021 09:26:58 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5E16160FC3 for ; Mon, 18 Oct 2021 09:26:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231341AbhJRJ3I (ORCPT ); Mon, 18 Oct 2021 05:29:08 -0400 Received: from mail.kernel.org ([198.145.29.99]:48250 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231338AbhJRJ3I (ORCPT ); Mon, 18 Oct 2021 05:29:08 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id C221A6126A; Mon, 18 Oct 2021 09:26:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1634549217; bh=PUeS9aeK1l4lRCXGi62TKQ0luv22voNbFLXqCb9BaCw=; h=Subject:To:Cc:From:Date:From; b=wVei1fuWkbJ6EodXG7oW0DBuZBcgGYI8redDmmXFQqgnxTlmrjxVvm/a791+wVwfo fcLbv2wORgyq9OuVjTl633qVS+bmQvRhuyQyWlLJJ9JK8ir9kDPK3Uq3mksSWn+Mny Xn1fOdVgzyBNPTj2nLtCpdJHAfByPFBny1te4Wwk= Subject: FAILED: patch "[PATCH] staging: vc04_services: shut up out-of-range warning" failed to apply to 4.14-stable tree To: arnd@arndb.de, gregkh@linuxfoundation.org, stable@vger.kernel.org Cc: From: Date: Mon, 18 Oct 2021 11:26:46 +0200 Message-ID: <16345492061331@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org The patch below does not apply to the 4.14-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to . thanks, greg k-h ------------------ original commit in Linus's tree ------------------ >From 7ff4034e910fe00a90d985f0d05bacf60c162f02 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Mon, 27 Sep 2021 13:36:56 +0200 Subject: [PATCH] staging: vc04_services: shut up out-of-range warning The comparison against SIZE_MAX produces a harmless warning on 64-bit architectures: drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c:185:16: error: result of comparison of constant 419244183493398898 with expression of type 'unsigned int' is always false [-Werror,-Wtautological-constant-out-of-range-compare] if (num_pages > (SIZE_MAX - sizeof(struct pagelist) - ~~~~~~~~~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Shut up that warning by adding a cast to a longer type. Fixes: ca641bae6da9 ("staging: vc04_services: prevent integer overflow in create_pagelist()") Cc: stable Signed-off-by: Arnd Bergmann Link: https://lore.kernel.org/r/20210927113702.3866843-1-arnd@kernel.org Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c index b25369a13452..967f10b9582a 100644 --- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c +++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c @@ -182,7 +182,7 @@ create_pagelist(char *buf, char __user *ubuf, offset = (uintptr_t)ubuf & (PAGE_SIZE - 1); num_pages = DIV_ROUND_UP(count + offset, PAGE_SIZE); - if (num_pages > (SIZE_MAX - sizeof(struct pagelist) - + if ((size_t)num_pages > (SIZE_MAX - sizeof(struct pagelist) - sizeof(struct vchiq_pagelist_info)) / (sizeof(u32) + sizeof(pages[0]) + sizeof(struct scatterlist)))