diff --git a/libc/fuzzing/string/strcmp_fuzz.cpp b/libc/fuzzing/string/strcmp_fuzz.cpp
--- a/libc/fuzzing/string/strcmp_fuzz.cpp
+++ b/libc/fuzzing/string/strcmp_fuzz.cpp
@@ -15,7 +15,7 @@
 
 // The general structure is to take the value of the first byte, set size1 to
 // that value, and add the null terminator. size2 will then contain the rest of
-// the bytes in data. For example: Inputs: data: [2, 6, 4, 8, 0], size: 5 Split:
+// the bytes in data. For example, with inputs ([2, 6, 4, 8, 0], 5):
 //         size1: data[0] = 2
 //         data1: [2, 6] + '\0' = [2, 6, '\0']
 //         size2: size - size1 = 3
@@ -38,12 +38,16 @@
   // Copy the data into new containers.
   // Add one for null terminator.
   uint8_t *data1 = new uint8_t[size1 + 1];
+  if (!data1)
+    __builtin_trap();
   size_t i;
   for (i = 0; i < size1; ++i)
     data1[i] = data[i];
   data1[size1] = '\0'; // Add null terminator to data1.
 
   uint8_t *data2 = new uint8_t[size2];
+  if (!data2)
+    __builtin_trap();
   for (size_t j = 0; j < size2; ++i, ++j)
     data2[j] = data[i];
   // Verify the second string is null-terminated.
@@ -80,5 +84,8 @@
   if (expected_result != actual_result)
     __builtin_trap();
 
+  delete[] data1;
+  delete[] data2;
+
   return 0;
-}
+}
\ No newline at end of file