1 // RUN: %clang_hwasan %s -o %t 2 // RUN: not %run %t 50 2>&1 | FileCheck %s 3 // RUN: not %run %t 40 2>&1 | FileCheck %s 4 // RUN: not %run %t 30 2>&1 | FileCheck %s 5 6 #include <stdlib.h> 7 #include <stdio.h> 8 #include <sanitizer/hwasan_interface.h> 9 main(int argc,char ** argv)10int main(int argc, char **argv) { 11 __hwasan_enable_allocator_tagging(); 12 if (argc != 2) return 0; 13 int realloc_size = atoi(argv[1]); 14 char * volatile x = (char*)malloc(40); 15 free(x); 16 x = realloc(x, realloc_size); 17 // CHECK: ERROR: HWAddressSanitizer: invalid-free on address 18 // CHECK: tags: [[PTR_TAG:..]]/[[MEM_TAG:..]] (ptr/mem) 19 // CHECK: freed by thread {{.*}} here: 20 // CHECK: previously allocated by thread {{.*}} here: 21 // CHECK: Memory tags around the buggy address (one tag corresponds to 16 bytes): 22 // CHECK: =>{{.*}}[[MEM_TAG]] 23 fprintf(stderr, "DONE\n"); 24 __hwasan_disable_allocator_tagging(); 25 // CHECK-NOT: DONE 26 } 27