// RUN: %clang_hwasan %s -o %t // RUN: not %run %t 40 2>&1 | FileCheck %s --check-prefix=CHECK40 // RUN: not %run %t 80 2>&1 | FileCheck %s --check-prefix=CHECK80 // RUN: not %run %t -30 2>&1 | FileCheck %s --check-prefix=CHECKm30 // RUN: not %run %t -30 1000000 2>&1 | FileCheck %s --check-prefix=CHECKMm30 // RUN: not %run %t 1000000 1000000 2>&1 | FileCheck %s --check-prefix=CHECKM // Test OOB within the granule. // RUN: not %run %t 31 2>&1 | FileCheck %s --check-prefix=CHECK31 // RUN: not %run %t 30 20 2>&1 | FileCheck %s --check-prefix=CHECK20 // REQUIRES: stable-runtime #include #include #include #include "utils.h" static volatile char sink; int main(int argc, char **argv) { __hwasan_enable_allocator_tagging(); int offset = argc < 2 ? 40 : atoi(argv[1]); int size = argc < 3 ? 30 : atoi(argv[2]); char * volatile x = (char*)malloc(size); untag_fprintf(stderr, "base: %p access: %p\n", x, &x[offset]); sink = x[offset]; // CHECK40: allocated heap chunk; size: 32 offset: 8 // CHECK40: is located 10 bytes to the right of 30-byte region // // CHECK80: allocated heap chunk; size: 32 offset: 16 // CHECK80: is located 50 bytes to the right of 30-byte region // // CHECKm30: is located 30 bytes to the left of 30-byte region // // CHECKMm30: is a large allocated heap chunk; size: 1003520 offset: -30 // CHECKMm30: is located 30 bytes to the left of 1000000-byte region // // CHECKM: is a large allocated heap chunk; size: 1003520 offset: 1000000 // CHECKM: is located 0 bytes to the right of 1000000-byte region // // CHECK31: tags: [[TAG:..]]/0e (ptr/mem) // CHECK31: is located 1 bytes to the right of 30-byte region // CHECK31: Memory tags around the buggy address // CHECK31: [0e] // CHECK31: Tags for short granules around the buggy address // CHECK31: {{\[}}[[TAG]]] // // CHECK20: is located 10 bytes to the right of 20-byte region [0x{{.*}}0,0x{{.*}}4) free(x); }