1 // RUN: %clangxx_asan -O0 %s -o %t && not %t 2>%t.out 2 // RUN: FileCheck %s < %t.out && FileCheck %s --check-prefix=CHECK-%os < %t.out 3 // RUN: %clangxx_asan -O1 %s -o %t && not %t 2>%t.out 4 // RUN: FileCheck %s < %t.out && FileCheck %s --check-prefix=CHECK-%os < %t.out 5 // RUN: %clangxx_asan -O2 %s -o %t && not %t 2>%t.out 6 // RUN: FileCheck %s < %t.out && FileCheck %s --check-prefix=CHECK-%os < %t.out 7 // RUN: %clangxx_asan -O3 %s -o %t && not %t 2>%t.out 8 // RUN: FileCheck %s < %t.out && FileCheck %s --check-prefix=CHECK-%os < %t.out 9 10 // Test use-after-free report in the case when access is at the right border of 11 // the allocation. 12 13 #include <stdlib.h> 14 int main() { 15 volatile char *x = (char*)malloc(sizeof(char)); 16 free((void*)x); 17 *x = 42; 18 // CHECK: {{.*ERROR: AddressSanitizer: heap-use-after-free on address}} 19 // CHECK: {{0x.* at pc 0x.* bp 0x.* sp 0x.*}} 20 // CHECK: {{WRITE of size 1 at 0x.* thread T0}} 21 // CHECK: {{ #0 0x.* in main .*use-after-free-right.cc:17}} 22 // CHECK: {{0x.* is located 0 bytes inside of 1-byte region .0x.*,0x.*}} 23 // CHECK: {{freed by thread T0 here:}} 24 25 // CHECK-Linux: {{ #0 0x.* in .*free}} 26 // CHECK-Linux: {{ #1 0x.* in main .*use-after-free-right.cc:16}} 27 28 // CHECK-Darwin: {{ #0 0x.* in wrap_free}} 29 // CHECK-Darwin: {{ #1 0x.* in main .*use-after-free-right.cc:16}} 30 31 // CHECK: {{previously allocated by thread T0 here:}} 32 33 // CHECK-Linux: {{ #0 0x.* in .*malloc}} 34 // CHECK-Linux: {{ #1 0x.* in main .*use-after-free-right.cc:15}} 35 36 // CHECK-Darwin: {{ #0 0x.* in wrap_malloc.*}} 37 // CHECK-Darwin: {{ #1 0x.* in main .*use-after-free-right.cc:15}} 38 } 39
