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=-19.5 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,USER_AGENT_GIT autolearn=unavailable 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 EE8BEC19F40 for ; Mon, 26 Jul 2021 16:36:48 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id CF7DA610FF for ; Mon, 26 Jul 2021 16:36:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240643AbhGZPzx (ORCPT ); Mon, 26 Jul 2021 11:55:53 -0400 Received: from mail.kernel.org ([198.145.29.99]:52792 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235217AbhGZPfR (ORCPT ); Mon, 26 Jul 2021 11:35:17 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 28493604AC; Mon, 26 Jul 2021 16:15:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1627316145; bh=AGq2x0t0KxaJNErco3NfpF3Q+7Djdn+ezKGvOUM6QRQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=kWy+dRK7HHP0Ze9TwVn7I1PWJ992seXt8KU3iV+I8Hju2OulfUj0CSS1HXUv+0+VI qh6KEomEZZYmOdcM4is5ByE1pPZ8kwTz85by/UsIBzBxRzNwOkAeHYik9i05BP6Evv SCY96xvvXvgV5Kxc76kOHjOK+IcYqoZ4mlsjGT8o= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Nick Hu , Greentime Hu , Vincent Chen , Michal Hocko , Hugh Dickins , Qiang Liu , iLifetruth Subject: [PATCH 5.13 206/223] nds32: fix up stack guard gap Date: Mon, 26 Jul 2021 17:39:58 +0200 Message-Id: <20210726153852.935567536@linuxfoundation.org> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20210726153846.245305071@linuxfoundation.org> References: <20210726153846.245305071@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Greg Kroah-Hartman commit c453db6cd96418c79702eaf38259002755ab23ff upstream. Commit 1be7107fbe18 ("mm: larger stack guard gap, between vmas") fixed up all architectures to deal with the stack guard gap. But when nds32 was added to the tree, it forgot to do the same thing. Resolve this by properly fixing up the nsd32's version of arch_get_unmapped_area() Cc: Nick Hu Cc: Greentime Hu Cc: Vincent Chen Cc: Michal Hocko Cc: Hugh Dickins Cc: Qiang Liu Cc: stable Reported-by: iLifetruth Acked-by: Hugh Dickins Link: https://lore.kernel.org/r/20210629104024.2293615-1-gregkh@linuxfoundation.org Signed-off-by: Greg Kroah-Hartman --- arch/nds32/mm/mmap.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/arch/nds32/mm/mmap.c +++ b/arch/nds32/mm/mmap.c @@ -59,7 +59,7 @@ arch_get_unmapped_area(struct file *filp vma = find_vma(mm, addr); if (TASK_SIZE - len >= addr && - (!vma || addr + len <= vma->vm_start)) + (!vma || addr + len <= vm_start_gap(vma))) return addr; }