2 files changed, 12 insertions, 0 deletions

diff --git a/fs/ext4/dir.c b/fs/ext4/dir.c
index f8595787a70e..f2ed3e7fb9f5 100644
--- a/fs/ext4/dir.c
+++ b/fs/ext4/dir.c
@@ -153,6 +153,9 @@ static int ext4_readdir(struct file * filp,
                         ext4_error (sb, "ext4_readdir",
                                 "directory #%lu contains a hole at offset %lu",
                                 inode->i_ino, (unsigned long)filp->f_pos);
+                        /* corrupt size?  Maybe no more blocks to read */
+                        if (filp->f_pos > inode->i_blocks << 9)
+                                break;
                         filp->f_pos += sb->s_blocksize - offset;
                         continue;
                 }
diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c
index 8b1bd03d20f5..859990eac504 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) &&