You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
25 lines
584 B
25 lines
584 B
/*
|
|
* Copyright (c) Facebook, Inc. and its affiliates.
|
|
*
|
|
* This source code is licensed under the MIT license found in the
|
|
* LICENSE file in the root directory of this source tree.
|
|
*/
|
|
#include <stddef.h>
|
|
|
|
void invalidate_local_ok(int** pp) {
|
|
int t = 0xdeadbeef;
|
|
*pp = &t; // <-- potential bug here since t goes out of scope
|
|
}
|
|
|
|
void access_out_of_scope_stack_ref_bad() {
|
|
int* p = NULL;
|
|
invalidate_local_ok(&p);
|
|
int k = *p; // accessing invalid
|
|
}
|
|
|
|
void no_access_out_of_scope_stack_ref_ok() {
|
|
int* p = NULL;
|
|
invalidate_local_ok(&p);
|
|
// p is not accessed, hence ok
|
|
}
|