From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:33038 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756330AbeDVOVp (ORCPT ); Sun, 22 Apr 2018 10:21:45 -0400 From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, stable@kernel.org, Al Viro Subject: [PATCH 3.18 47/52] jffs2_kill_sb(): deal with failed allocations Date: Sun, 22 Apr 2018 15:54:20 +0200 Message-Id: <20180422135317.515847428@linuxfoundation.org> In-Reply-To: <20180422135315.254787616@linuxfoundation.org> References: <20180422135315.254787616@linuxfoundation.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Sender: stable-owner@vger.kernel.org List-ID: 3.18-stable review patch. If anyone has any objections, please let me know. ------------------ From: Al Viro commit c66b23c2840446a82c389e4cb1a12eb2a71fa2e4 upstream. jffs2_fill_super() might fail to allocate jffs2_sb_info; jffs2_kill_sb() must survive that. Cc: stable@kernel.org Signed-off-by: Al Viro Signed-off-by: Greg Kroah-Hartman --- fs/jffs2/super.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/fs/jffs2/super.c +++ b/fs/jffs2/super.c @@ -345,7 +345,7 @@ static void jffs2_put_super (struct supe static void jffs2_kill_sb(struct super_block *sb) { struct jffs2_sb_info *c = JFFS2_SB_INFO(sb); - if (!(sb->s_flags & MS_RDONLY)) + if (c && !(sb->s_flags & MS_RDONLY)) jffs2_stop_garbage_collect_thread(c); kill_mtd_super(sb); kfree(c);