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
|
// REQUIRES: x86_64-target-arch
// RUN: %clangxx_asan %s -o %t
// RUN: not %run %t 2>&1 | FileCheck %s
#include <sanitizer/common_interface_defs.h>
#include <sched.h>
#include <unistd.h>
#include <stdio.h>
#include <stdlib.h>
int main() {
__sanitizer_sandbox_arguments args = {0};
// should cache /proc/self/maps
__sanitizer_sandbox_on_notify(&args);
if (unshare(CLONE_NEWUSER)) {
printf("unshare failed\n");
return 1;
}
// remove access to /proc/self/maps
if (chroot("/tmp")) {
printf("chroot failed\n");
return 2;
}
*(volatile int*)0x42 = 0;
// CHECK-NOT: CHECK failed
}
|
