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Diffstat (limited to '')
| -rw-r--r-- | fs/ext4/namei.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c index e5a74a5ac261..05c0d7f8fdf9 100644 --- a/fs/ext4/namei.c +++ b/fs/ext4/namei.c @@ -2189,6 +2189,12 @@ static int ext4_link (struct dentry * old_dentry, if (inode->i_nlink >= EXT4_LINK_MAX) return -EMLINK; + /* + * Return -ENOENT if we've raced with unlink and i_nlink is 0. Doing + * otherwise has the potential to corrupt the orphan inode list. + */ + if (inode->i_nlink == 0) + return -ENOENT; retry: handle = ext4_journal_start(dir, EXT4_DATA_TRANS_BLOCKS(dir->i_sb) + |