diff options
Diffstat (limited to 'fs/ext4/dir.c')
| -rw-r--r-- | fs/ext4/dir.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/fs/ext4/dir.c b/fs/ext4/dir.c index b8678620264..aa39e600d15 100644 --- a/fs/ext4/dir.c +++ b/fs/ext4/dir.c @@ -179,6 +179,18 @@ static int ext4_readdir(struct file *filp, continue; } + /* Check the checksum */ + if (!buffer_verified(bh) && + !ext4_dirent_csum_verify(inode, + (struct ext4_dir_entry *)bh->b_data)) { + EXT4_ERROR_FILE(filp, 0, "directory fails checksum " + "at offset %llu", + (unsigned long long)filp->f_pos); + filp->f_pos += sb->s_blocksize - offset; + continue; + } + set_buffer_verified(bh); + revalidate: /* If the dir block has changed since the last call to * readdir(2), then we might be pointing to an invalid |