test/asan/TestCases/Windows/malloc_uaf.cc

   1 // RUN: %clangxx_asan -O0 %s -Fe%t
   2 // RUN: not %run %t 2>&1 | FileCheck %s
   3
   4 #include <malloc.h>
   5
   6 int main() {
   7   char *buffer = (char*)malloc(42);
   8   free(buffer);
   9   buffer[0] = 42;
  10 // CHECK: AddressSanitizer: heap-use-after-free on address [[ADDR:0x[0-9a-f]+]]
  11 // CHECK: WRITE of size 1 at [[ADDR]] thread T0
  12 // CHECK-NEXT: {{#0 .* main .*malloc_uaf.cc}}:[[@LINE-3]]
  13 // CHECK: [[ADDR]] is located 0 bytes inside of 42-byte region
  14 // CHECK: freed by thread T0 here:
  15 // CHECK-NEXT: {{#0 .* free }}
  16 // CHECK-NEXT: {{#1 .* main .*malloc_uaf.cc}}:[[@LINE-8]]
  17 // CHECK: previously allocated by thread T0 here:
  18 // CHECK-NEXT: {{#0 .* malloc }}
  19 // CHECK-NEXT: {{#1 .* main .*malloc_uaf.cc}}:[[@LINE-12]]
  20 }