#92 validate the pixel data

Xpra-org · Aug 19, 2021 · f1d2cf9 · f1d2cf9
1 parent 3f7c084
commit f1d2cf9
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/html5/js/DecodeWorker.js b/html5/js/DecodeWorker.js
@@ -202,6 +202,10 @@ function decode_draw_packet(packet) {
 		}
 		else if (coding=="png" || coding=="jpeg" || coding=="webp") {
 			const data = packet[7];
+			if (!data.buffer) {
+				decode_error("missing pixel data buffer: "+(typeof data));
+				return;
+			}
 			const blob = new Blob([data.buffer]);
 			hold();
 			createImageBitmap(blob, {