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
|
// RUN: %clang_cl_asan -O0 %s -Fe%t
// RUN: not %run %t 2>&1 | FileCheck %s
class Parent {
public:
int field;
};
class Child : public Parent {
public:
int extra_field;
};
int main(void) {
Parent *p = new Parent;
Child *c = (Child*)p; // Intentional error here!
c->extra_field = 42;
// CHECK: AddressSanitizer: heap-buffer-overflow on address [[ADDR:0x[0-9a-f]+]]
// CHECK: WRITE of size 4 at [[ADDR]] thread T0
// CHECK: {{#0 0x[0-9a-f]* in main .*wrong_downcast_on_heap.cc}}:[[@LINE-3]]
// CHECK: [[ADDR]] is located 0 bytes to the right of 4-byte region
// CHECK: allocated by thread T0 here:
// CHECK: #0 {{.*}} operator new
return 0;
}
|
