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authorHyunchul Lee <cheol.lee@lge.com>2017-05-17 02:58:02 +0300
committerRichard Weinberger <richard@nod.at>2017-07-14 23:49:05 +0300
commitbb50c63244687706e11c9b636a5ad3090cd783ac (patch)
tree68e8816798e804db7259ac49f95ca6b916529636 /fs/ubifs
parent4d35ca4f774c29ec9ed676fd5112bfc83ef9853e (diff)
downloadlinux-bb50c63244687706e11c9b636a5ad3090cd783ac.tar.xz
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>
Diffstat (limited to 'fs/ubifs')
-rw-r--r--fs/ubifs/dir.c14
1 files 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);