1 // RUN: %clang_cl_asan -Od %s -Fe%t
2 // RUN: not %run %t 2>&1 | FileCheck %s
3
4 #include <malloc.h>
5
main()6 int main() {
7 char *buffer = (char*)realloc(0, 42);
8 buffer[42] = 42;
9 // CHECK: AddressSanitizer: heap-buffer-overflow on address [[ADDR:0x[0-9a-f]+]]
10 // CHECK: WRITE of size 1 at [[ADDR]] thread T0
11 // CHECK-NEXT: {{#0 .* main .*realloc_right_oob.cpp}}:[[@LINE-3]]
12 // CHECK: [[ADDR]] is located 0 bytes to the right of 42-byte region
13 // CHECK: allocated by thread T0 here:
14 // CHECK-NEXT: {{#0 .* realloc }}
15 // CHECK-NEXT: {{#1 .* main .*realloc_right_oob.cpp}}:[[@LINE-8]]
16 free(buffer);
17 }
18