From bb50c63244687706e11c9b636a5ad3090cd783ac Mon Sep 17 00:00:00 2001 From: Hyunchul Lee Date: Wed, 17 May 2017 08:58:02 +0900 Subject: [PATCH] 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 Signed-off-by: Richard Weinberger --- fs/ubifs/dir.c | 14 +++++--------- 1 file changed, 5 insertions(+), 9 deletions(-) diff --git a/fs/ubifs/dir.c b/fs/ubifs/dir.c index 4e4bf8f6320f..996e4215fd28 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 @@ out_cancel: 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); -- 2.20.1