Messages in this thread Patch in this message | | | From | Greg Kroah-Hartman <> | Subject | [ 028/171] ext4: fix memory leak in ext4_xattr_set_acl()s error path | Date | Tue, 15 Jan 2013 14:43:13 -0800 |
| |
3.4-stable review patch. If anyone has any objections, please let me know.
------------------
From: Eugene Shatokhin <eugene.shatokhin@rosalab.ru>
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 <lczerner@redhat.com> Signed-off-by: Eugene Shatokhin <eugene.shatokhin@rosalab.ru> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- fs/ext4/acl.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-)
--- a/fs/ext4/acl.c +++ b/fs/ext4/acl.c @@ -410,8 +410,10 @@ ext4_xattr_set_acl(struct dentry *dentry 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))
| |