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| author | Eugene Shatokhin <eugene.shatokhin@rosalab.ru> | 2012-11-08 15:11:11 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-01-17 08:45:59 -0800 |
| commit | 6c96e0701d62e20a2d7ac2de6083bbe5841b9b95 (patch) | |
| tree | 5e7b26f8373ac10c5bb3133d8bbee89fd2630a4d | |
| parent | a2d7d69aa0499e093f338d5f1f4e40f7f2b35db9 (diff) | |
| download | lwn-6c96e0701d62e20a2d7ac2de6083bbe5841b9b95.tar.gz lwn-6c96e0701d62e20a2d7ac2de6083bbe5841b9b95.zip | |
ext4: fix memory leak in ext4_xattr_set_acl()'s error path
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>
| -rw-r--r-- | fs/ext4/acl.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/fs/ext4/acl.c b/fs/ext4/acl.c index d3c5b88fd89f..e6e0d988439b 100644 --- a/fs/ext4/acl.c +++ b/fs/ext4/acl.c @@ -423,8 +423,10 @@ 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)) |