1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
|
// RUN: %clang_cl_asan -O0 %s -Fe%t
// RUN: not %run %t 2>&1 | FileCheck %s
#include <stdio.h>
#include <string.h>
void call_memcpy(void* (*f)(void *, const void *, size_t),
void *a, const void *b, size_t c) {
f(a, b, c);
}
int main() {
char buff1[6] = "Hello", buff2[5];
call_memcpy(&memcpy, buff2, buff1, 5);
if (buff1[2] != buff2[2])
return 2;
printf("Initial test OK\n");
fflush(0);
// CHECK: Initial test OK
call_memcpy(&memcpy, buff2, buff1, 6);
// CHECK: AddressSanitizer: stack-buffer-overflow on address [[ADDR:0x[0-9a-f]+]]
// CHECK: WRITE of size 6 at [[ADDR]] thread T0
// CHECK-NEXT: __asan_{{.*}}mem{{.*}}
// CHECK-NEXT: call_mem{{.*}}
// CHECK-NEXT: main {{.*}}intercept_memcpy.cc:[[@LINE-5]]
// CHECK: Address [[ADDR]] is located in stack of thread T0 at offset {{.*}} in frame
// CHECK-NEXT: #0 {{.*}} main
// CHECK: 'buff2'{{.*}} <== Memory access at offset {{.*}} overflows this variable
}
|
