Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755998AbaBEUV6 (ORCPT ); Wed, 5 Feb 2014 15:21:58 -0500 Received: from mail.windriver.com ([147.11.1.11]:55484 "EHLO mail.windriver.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755250AbaBEUHj (ORCPT ); Wed, 5 Feb 2014 15:07:39 -0500 From: Paul Gortmaker To: , CC: Eugene Shatokhin , "Theodore Ts'o" , Paul Gortmaker Subject: [v2.6.34-stable 174/213] ext4: fix memory leak in ext4_xattr_set_acl()'s error path Date: Wed, 5 Feb 2014 15:02:09 -0500 Message-ID: <1391630568-49251-175-git-send-email-paul.gortmaker@windriver.com> X-Mailer: git-send-email 1.8.5.2 In-Reply-To: <1391630568-49251-1-git-send-email-paul.gortmaker@windriver.com> References: <1391630568-49251-1-git-send-email-paul.gortmaker@windriver.com> MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Eugene Shatokhin ------------------- This is a commit scheduled for the next v2.6.34 longterm release. http://git.kernel.org/?p=linux/kernel/git/paulg/longterm-queue-2.6.34.git If you see a problem with using this for longterm, please comment. ------------------- commit 24ec19b0ae83a385ad9c55520716da671274b96c upstream. In ext4_xattr_set_acl(), if ext4_journal_start() returns an error, posix_acl_release() will not be called for 'acl' which may result in a memory leak. This patch fixes that. Reviewed-by: Lukas Czerner Signed-off-by: Eugene Shatokhin Signed-off-by: "Theodore Ts'o" Signed-off-by: Paul Gortmaker --- fs/ext4/acl.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/fs/ext4/acl.c b/fs/ext4/acl.c index 8a2a29d35a6f..f14fa786dad0 100644 --- a/fs/ext4/acl.c +++ b/fs/ext4/acl.c @@ -442,8 +442,10 @@ ext4_xattr_set_acl(struct dentry *dentry, const char *name, const void *value, retry: handle = ext4_journal_start(inode, EXT4_DATA_TRANS_BLOCKS(inode->i_sb)); - if (IS_ERR(handle)) - return PTR_ERR(handle); + if (IS_ERR(handle)) { + error = PTR_ERR(handle); + goto release_and_out; + } error = ext4_set_acl(handle, inode, type, acl); ext4_journal_stop(handle); if (error == -ENOSPC && ext4_should_retry_alloc(inode->i_sb, &retries)) -- 1.8.5.2 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/