1 // RUN: %clangxx_asan -O %s -o %t 2 // RUN: not %run %t crash 2>&1 | FileCheck --check-prefix=CHECK-CRASH %s 3 // RUN: not %run %t bad-bounds 2>&1 | FileCheck --check-prefix=CHECK-BAD %s 4 // RUN: env ASAN_OPTIONS=detect_container_overflow=0 %run %t crash 5 // 6 // Test crash due to __sanitizer_annotate_contiguous_container. 7 8 #include <assert.h> 9 #include <string.h> 10 11 extern "C" { 12 void __sanitizer_annotate_contiguous_container(const void *beg, const void *end, 13 const void *old_mid, 14 const void *new_mid); 15 } // extern "C" 16 17 static volatile int one = 1; 18 19 int TestCrash() { 20 long t[100]; 21 t[60] = 0; 22 __sanitizer_annotate_contiguous_container(&t[0], &t[0] + 100, &t[0] + 100, 23 &t[0] + 50); 24 return (int)t[60 * one]; // Touches the poisoned memory. 25 } 26 27 void BadBounds() { 28 long t[100]; 29 __sanitizer_annotate_contiguous_container(&t[0], &t[0] + 100, &t[0] + 101, 30 &t[0] + 50); 31 } 32 33 int main(int argc, char **argv) { 34 assert(argc == 2); 35 if (!strcmp(argv[1], "crash")) 36 return TestCrash(); 37 else if (!strcmp(argv[1], "bad-bounds")) 38 BadBounds(); 39 } 40 // CHECK-CRASH: AddressSanitizer: container-overflow 41 // CHECK-BAD: ERROR: AddressSanitizer: bad parameters to __sanitizer_annotate_contiguous_container 42
