diff options
Diffstat (limited to 'fs/ntfs3/namei.c')
| -rw-r--r-- | fs/ntfs3/namei.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/fs/ntfs3/namei.c b/fs/ntfs3/namei.c index 407fe92394e2..92bbc8ee83ca 100644 --- a/fs/ntfs3/namei.c +++ b/fs/ntfs3/namei.c @@ -88,6 +88,16 @@ static struct dentry *ntfs_lookup(struct inode *dir, struct dentry *dentry, __putname(uni); } + /* + * Check for a null pointer + * If the MFT record of ntfs inode is not a base record, inode->i_op can be NULL. + * This causes null pointer dereference in d_splice_alias(). + */ + if (!IS_ERR_OR_NULL(inode) && !inode->i_op) { + iput(inode); + inode = ERR_PTR(-EINVAL); + } + return d_splice_alias(inode, dentry); } |