From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pf0-f172.google.com (mail-pf0-f172.google.com [209.85.192.172]) by kanga.kvack.org (Postfix) with ESMTP id D3B3E828DE for ; Thu, 7 Jan 2016 18:13:58 -0500 (EST) Received: by mail-pf0-f172.google.com with SMTP id q63so354144pfb.1 for ; Thu, 07 Jan 2016 15:13:58 -0800 (PST) Received: from mail.linuxfoundation.org (mail.linuxfoundation.org. [140.211.169.12]) by mx.google.com with ESMTPS id gl10si80454564pac.164.2016.01.07.15.13.57 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 07 Jan 2016 15:13:57 -0800 (PST) Date: Thu, 7 Jan 2016 15:13:56 -0800 From: Andrew Morton Subject: Re: [PATCH] mm/hugetlbfs Fix bugs in hugetlb_vmtruncate_list Message-Id: <20160107151356.0e131b25f5740f6046221419@linux-foundation.org> In-Reply-To: <1452206137-12441-1-git-send-email-mike.kravetz@oracle.com> References: <1452206137-12441-1-git-send-email-mike.kravetz@oracle.com> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org List-ID: To: Mike Kravetz Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org, Hillf Danton , Hugh Dickins , Naoya Horiguchi , Davidlohr Bueso , Dave Hansen , stable@vger.kernel.org On Thu, 7 Jan 2016 14:35:37 -0800 Mike Kravetz wrote: > Hillf Danton noticed bugs in the hugetlb_vmtruncate_list routine. > The argument end is of type pgoff_t. It was being converted to a > vaddr offset and passed to unmap_hugepage_range. However, end > was also being used as an argument to the vma_interval_tree_foreach > controlling loop. In addition, the conversion of end to vaddr offset > was incorrect. Could we please have a description of the user-visible effects of the bug? It's always needed for -stable things. And for all bugfixes, really. (stable@vger.kernel.org[4.3] isn't an email address btw - my client barfed) -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org