diff --git a/fs/isofs/dir.c b/fs/isofs/dir.c
index eb2f8273e6f1..312dacfe6623 100644
--- a/fs/isofs/dir.c
+++ b/fs/isofs/dir.c
@@ -146,6 +146,12 @@ static int do_isofs_readdir(struct inode *inode, struct file *file,
 			}
 			de = tmpde;
 		}
+
+		if (de_len < sizeof(struct iso_directory_record)) {
+			brelse(bh);
+			return -EIO;
+		}
+
 		/* Basic sanity check, whether name doesn't exceed dir entry */
 		if (de_len < de->name_len[0] +
 					sizeof(struct iso_directory_record)) {