diff options
Diffstat (limited to 'fs/ext4/namei.c')
| -rw-r--r-- | fs/ext4/namei.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c index 8b1bd03d20f5..e5a74a5ac261 100644 --- a/fs/ext4/namei.c +++ b/fs/ext4/namei.c @@ -552,6 +552,15 @@ static int htree_dirblock_to_tree(struct file *dir_file, dir->i_sb->s_blocksize - EXT4_DIR_REC_LEN(0)); for (; de < top; de = ext4_next_entry(de)) { + if (!ext4_check_dir_entry("htree_dirblock_to_tree", dir, de, bh, + (block<<EXT4_BLOCK_SIZE_BITS(dir->i_sb)) + +((char *)de - bh->b_data))) { + /* On error, skip the f_pos to the next block. */ + dir_file->f_pos = (dir_file->f_pos | + (dir->i_sb->s_blocksize - 1)) + 1; + brelse (bh); + return count; + } ext4fs_dirhash(de->name, de->name_len, hinfo); if ((hinfo->hash < start_hash) || ((hinfo->hash == start_hash) && @@ -593,7 +602,7 @@ int ext4_htree_fill_tree(struct file *dir_file, __u32 start_hash, dxtrace(printk("In htree_fill_tree, start hash: %x:%x\n", start_hash, start_minor_hash)); - dir = dir_file->f_dentry->d_inode; + dir = dir_file->f_path.dentry->d_inode; if (!(EXT4_I(dir)->i_flags & EXT4_INDEX_FL)) { hinfo.hash_version = EXT4_SB(dir->i_sb)->s_def_hash_version; hinfo.seed = EXT4_SB(dir->i_sb)->s_hash_seed; @@ -604,7 +613,7 @@ int ext4_htree_fill_tree(struct file *dir_file, __u32 start_hash, } hinfo.hash = start_hash; hinfo.minor_hash = 0; - frame = dx_probe(NULL, dir_file->f_dentry->d_inode, &hinfo, frames, &err); + frame = dx_probe(NULL, dir_file->f_path.dentry->d_inode, &hinfo, frames, &err); if (!frame) return err; |