| // RUN: %clang_hwasan %s -o %t |
| // RUN: not %run %t 5 10 2>&1 | FileCheck %s --check-prefix=CHECK5 |
| // RUN: not %run %t 7 10 2>&1 | FileCheck %s --check-prefix=CHECK7 |
| // RUN: not %run %t 8 20 2>&1 | FileCheck %s --check-prefix=CHECK8 |
| // RUN: not %run %t 32 20 2>&1 | FileCheck %s --check-prefix=CHECK32 |
| |
| // REQUIRES: stable-runtime |
| |
| #include <sanitizer/hwasan_interface.h> |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| |
| int main(int argc, char **argv) { |
| __hwasan_enable_allocator_tagging(); |
| if (argc < 2) { |
| fprintf(stderr, "Invalid number of arguments."); |
| abort(); |
| } |
| int read_offset = argc < 2 ? 5 : atoi(argv[1]); |
| int size = argc < 3 ? 10 : atoi(argv[2]); |
| char *volatile x = (char *)malloc(size); |
| memset(x + read_offset, 0, 26); |
| // CHECK5: Invalid access starting at offset 5 |
| // CHECK5: is located 5 bytes inside a 10-byte region |
| // CHECK7: Invalid access starting at offset 3 |
| // CHECK7: is located 7 bytes inside a 10-byte region |
| // CHECK8: Invalid access starting at offset 12 |
| // CHECK8: is located 8 bytes inside a 20-byte region |
| // CHECK32: is located 12 bytes after a 20-byte region |
| free(x); |
| } |