ubifs: Fix memory leak in RENAME_WHITEOUT error path in do_rename
in RENAME_WHITEOUT error path, fscrypt_name should be freed.
Signed-off-by: Hyunchul Lee <cheol.lee@lge.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
diff --git a/fs/ubifs/dir.c b/fs/ubifs/dir.c
index 4e4bf8f..996e421 100644
--- a/fs/ubifs/dir.c
+++ b/fs/ubifs/dir.c
@@ -1396,17 +1396,14 @@ static int do_rename(struct inode *old_dir, struct dentry *old_dentry,
dev = kmalloc(sizeof(union ubifs_dev_desc), GFP_NOFS);
if (!dev) {
- ubifs_release_budget(c, &req);
- ubifs_release_budget(c, &ino_req);
- return -ENOMEM;
+ err = -ENOMEM;
+ goto out_release;
}
err = do_tmpfile(old_dir, old_dentry, S_IFCHR | WHITEOUT_MODE, &whiteout);
if (err) {
- ubifs_release_budget(c, &req);
- ubifs_release_budget(c, &ino_req);
kfree(dev);
- return err;
+ goto out_release;
}
whiteout->i_state |= I_LINKABLE;
@@ -1494,12 +1491,10 @@ static int do_rename(struct inode *old_dir, struct dentry *old_dentry,
err = ubifs_budget_space(c, &wht_req);
if (err) {
- ubifs_release_budget(c, &req);
- ubifs_release_budget(c, &ino_req);
kfree(whiteout_ui->data);
whiteout_ui->data_len = 0;
iput(whiteout);
- return err;
+ goto out_release;
}
inc_nlink(whiteout);
@@ -1554,6 +1549,7 @@ static int do_rename(struct inode *old_dir, struct dentry *old_dentry,
iput(whiteout);
}
unlock_4_inodes(old_dir, new_dir, new_inode, whiteout);
+out_release:
ubifs_release_budget(c, &ino_req);
ubifs_release_budget(c, &req);
fscrypt_free_filename(&old_nm);