From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757740AbaELMlK (ORCPT ); Mon, 12 May 2014 08:41:10 -0400 Received: from userp1040.oracle.com ([156.151.31.81]:37653 "EHLO userp1040.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756403AbaELMlJ (ORCPT ); Mon, 12 May 2014 08:41:09 -0400 From: Sasha Levin To: akpm@linux-foundation.org, kirill.shutemov@linux.intel.com Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, Sasha Levin Subject: [PATCH] mm: remap_file_pages: initialize populate before usage Date: Mon, 12 May 2014 08:40:54 -0400 Message-Id: <1399898454-14915-1-git-send-email-sasha.levin@oracle.com> X-Mailer: git-send-email 1.9.1 X-Source-IP: acsinet21.oracle.com [141.146.126.237] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 'populate' wasn't initialized before being used in error paths, causing panics when mm_populate() would get called with invalid values. Signed-off-by: Sasha Levin --- mm/mmap.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/mmap.c b/mm/mmap.c index 84dcfc7..2a0e0a8 100644 --- a/mm/mmap.c +++ b/mm/mmap.c @@ -2591,7 +2591,7 @@ SYSCALL_DEFINE5(remap_file_pages, unsigned long, start, unsigned long, size, struct mm_struct *mm = current->mm; struct vm_area_struct *vma; - unsigned long populate; + unsigned long populate = 0; unsigned long ret = -EINVAL; pr_warn_once("%s (%d) uses deprecated remap_file_pages() syscall. " -- 1.7.10.4