1 // RUN: %clang_hwasan %s -o %t
2 // RUN: not %run %t 40 2>&1 | FileCheck %s --check-prefix=CHECK40
3 // RUN: not %run %t 80 2>&1 | FileCheck %s --check-prefix=CHECK80
4 // RUN: not %run %t -30 2>&1 | FileCheck %s --check-prefix=CHECKm30
5 // RUN: not %run %t -30 1000000 2>&1 | FileCheck %s --check-prefix=CHECKMm30
6 // RUN: not %run %t 1000000 1000000 2>&1 | FileCheck %s --check-prefix=CHECKM
7
8 // Test OOB within the granule.
9 // RUN: not %run %t 31 2>&1 | FileCheck %s --check-prefix=CHECK31
10 // RUN: not %run %t 30 20 2>&1 | FileCheck %s --check-prefix=CHECK20
11
12 // REQUIRES: stable-runtime
13
14 #include <stdlib.h>
15 #include <stdio.h>
16 #include <sanitizer/hwasan_interface.h>
17
18 static volatile char sink;
19
main(int argc,char ** argv)20 int main(int argc, char **argv) {
21 __hwasan_enable_allocator_tagging();
22 int offset = argc < 2 ? 40 : atoi(argv[1]);
23 int size = argc < 3 ? 30 : atoi(argv[2]);
24 char * volatile x = (char*)malloc(size);
25 fprintf(stderr, "base: %p access: %p\n", x, &x[offset]);
26 sink = x[offset];
27
28 #if defined(__x86_64__)
29 // Aliasing mode doesn't support the secondary allocator, so we fake a HWASan
30 // report instead of disabling the entire test.
31 if (size == 1000000) {
32 fprintf(stderr, "is a large allocated heap chunk; size: 1003520 offset: %d\n",
33 offset);
34 fprintf(stderr, "Cause: heap-buffer-overflow\n");
35 fprintf(stderr, "is located %s of 1000000-byte region\n",
36 offset == -30 ? "30 bytes to the left" : "0 bytes to the right");
37 return -1;
38 }
39 #endif
40
41 // CHECK40: allocated heap chunk; size: 32 offset: 8
42 // CHECK40: Cause: heap-buffer-overflow
43 // CHECK40: is located 10 bytes to the right of 30-byte region
44 //
45 // CHECK80: allocated heap chunk; size: 32 offset: 16
46 // CHECK80: Cause: heap-buffer-overflow
47 // CHECK80: is located 50 bytes to the right of 30-byte region
48 //
49 // CHECKm30: Cause: heap-buffer-overflow
50 // CHECKm30: is located 30 bytes to the left of 30-byte region
51 //
52 // CHECKMm30: is a large allocated heap chunk; size: 1003520 offset: -30
53 // CHECKMm30: Cause: heap-buffer-overflow
54 // CHECKMm30: is located 30 bytes to the left of 1000000-byte region
55 //
56 // CHECKM: is a large allocated heap chunk; size: 1003520 offset: 1000000
57 // CHECKM: Cause: heap-buffer-overflow
58 // CHECKM: is located 0 bytes to the right of 1000000-byte region
59 //
60 // CHECK31: tags: [[TAG:..]]/0e([[TAG]]) (ptr/mem)
61 // CHECK31-NOT: Invalid access starting at offset
62 // CHECK31: Cause: heap-buffer-overflow
63 // CHECK31: is located 1 bytes to the right of 30-byte region
64 // CHECK31: Memory tags around the buggy address
65 // CHECK31: [0e]
66 // CHECK31: Tags for short granules around the buggy address
67 // CHECK31: {{\[}}[[TAG]]]
68 //
69 // CHECK20-NOT: Invalid access starting at offset
70 // CHECK20: Cause: heap-buffer-overflow
71 // CHECK20: is located 10 bytes to the right of 20-byte region [0x{{.*}}0,0x{{.*}}4)
72 free(x);
73 }
74