diff --git a/compiler-rt/test/fuzzer/LoadTest.cpp b/compiler-rt/test/fuzzer/LoadTest.cpp
--- a/compiler-rt/test/fuzzer/LoadTest.cpp
+++ b/compiler-rt/test/fuzzer/LoadTest.cpp
@@ -9,15 +9,16 @@
 #include <cstring>
 #include <iostream>
 
-static volatile int Sink;
-const int kArraySize = 1234567;
-int array[kArraySize];
+static volatile uint8_t Sink;
+const int kArraySize = 32505854; // 0x01effffe
+uint8_t array[kArraySize];
 
 extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
-  if (Size < 8) return 0;
+  if (Size != 8)
+    return 0;
   uint64_t a = 0;
-  memcpy(&a, Data, 8);
+  memcpy(&a, Data, sizeof(a));
+  a &= 0x1fffffff;
   Sink = array[a % (kArraySize + 1)];
   return 0;
 }
-
diff --git a/compiler-rt/test/fuzzer/value-profile-load.test b/compiler-rt/test/fuzzer/value-profile-load.test
--- a/compiler-rt/test/fuzzer/value-profile-load.test
+++ b/compiler-rt/test/fuzzer/value-profile-load.test
@@ -1,3 +1,3 @@
 CHECK: AddressSanitizer: global-buffer-overflow
 RUN: %cpp_compiler %S/LoadTest.cpp -fsanitize-coverage=trace-gep -o %t-LoadTest
-RUN: not %run %t-LoadTest -seed=2 -use_cmp=0 -use_value_profile=1 -runs=20000000 2>&1 | FileCheck %s
+RUN: not %run %t-LoadTest -seed=1 -use_cmp=0 -use_value_profile=1 -runs=20000000 2>&1 | FileCheck %s