1 files changed, 7 insertions, 0 deletions
diff --git a/fdtoverlay.c b/fdtoverlay.c
index 9c5618c..7f124fc 100644
--- a/fdtoverlay.c
+++ b/fdtoverlay.c
@@ -27,6 +27,7 @@
 #include <stdlib.h>
 #include <string.h>
 #include <alloca.h>
+#include <inttypes.h>
 
 #include <libfdt.h>
 
@@ -69,6 +70,12 @@ static int do_fdtoverlay(const char *input_filename,
 				input_filename);
 		goto out_err;
 	}
+	if (fdt_totalsize(blob) > blob_len) {
+		fprintf(stderr,
+ "\nBase blob is incomplete (%lu / %" PRIu32 " bytes read)\n",
+			(unsigned long)blob_len, fdt_totalsize(blob));
+		goto out_err;
+	}
 	ret = 0;
 
 	/* allocate blob pointer array */