From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail138.messagelabs.com (mail138.messagelabs.com [216.82.249.35]) by kanga.kvack.org (Postfix) with ESMTP id 7F97B8D0040 for ; Mon, 28 Mar 2011 09:57:20 -0400 (EDT) Received: by mail-pz0-f41.google.com with SMTP id 32so783784pzk.14 for ; Mon, 28 Mar 2011 06:57:19 -0700 (PDT) From: Namhyung Kim Subject: [PATCH 5/6] nommu: fix a potential memory leak in do_mmap_private() Date: Mon, 28 Mar 2011 22:56:46 +0900 Message-Id: <1301320607-7259-6-git-send-email-namhyung@gmail.com> In-Reply-To: <1301320607-7259-1-git-send-email-namhyung@gmail.com> References: <1301320607-7259-1-git-send-email-namhyung@gmail.com> Sender: owner-linux-mm@kvack.org List-ID: To: Andrew Morton Cc: Paul Mundt , David Howells , Greg Ungerer , linux-mm@kvack.org, linux-kernel@vger.kernel.org If f_op->read() fails and sysctl_nr_trim_pages > 1, there could be a memory leak between @region->vm_end and @region->vm_top. Signed-off-by: Namhyung Kim --- mm/nommu.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/mm/nommu.c b/mm/nommu.c index 33f5d23c6d44..662fd46449a6 100644 --- a/mm/nommu.c +++ b/mm/nommu.c @@ -1241,7 +1241,7 @@ static int do_mmap_private(struct vm_area_struct *vma, return 0; error_free: - free_page_series(region->vm_start, region->vm_end); + free_page_series(region->vm_start, region->vm_top); region->vm_start = vma->vm_start = 0; region->vm_end = vma->vm_end = 0; region->vm_top = 0; -- 1.7.4 -- 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/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: email@kvack.org