From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:40142 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752856AbdJaJ5z (ORCPT ); Tue, 31 Oct 2017 05:57:55 -0400 From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Hirofumi Nakagawa Subject: [PATCH 4.13 16/43] ovl: add NULL check in ovl_alloc_inode Date: Tue, 31 Oct 2017 10:55:36 +0100 Message-Id: <20171031095531.176386717@linuxfoundation.org> In-Reply-To: <20171031095530.520746935@linuxfoundation.org> References: <20171031095530.520746935@linuxfoundation.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Sender: stable-owner@vger.kernel.org List-ID: 4.13-stable review patch. If anyone has any objections, please let me know. ------------------ From: Hirofumi Nakagawa commit b3885bd6edb41b91a0e3976469f72ae31bfb8d95 upstream. This was detected by fault injection test Signed-off-by: Hirofumi Nakagawa Fixes: 13cf199d0088 ("ovl: allocate an ovl_inode struct") Signed-off-by: Greg Kroah-Hartman --- fs/overlayfs/super.c | 3 +++ 1 file changed, 3 insertions(+) --- a/fs/overlayfs/super.c +++ b/fs/overlayfs/super.c @@ -174,6 +174,9 @@ static struct inode *ovl_alloc_inode(str { struct ovl_inode *oi = kmem_cache_alloc(ovl_inode_cachep, GFP_KERNEL); + if (!oi) + return NULL; + oi->cache = NULL; oi->redirect = NULL; oi->version = 0;