File: double_free.cpp

package info (click to toggle)
llvm-toolchain-20 1%3A20.1.8-1
  • links: PTS, VCS
  • area: main
  • in suites: experimental
  • size: 2,111,696 kB
  • sloc: cpp: 7,438,781; ansic: 1,393,871; asm: 1,012,926; python: 241,771; f90: 86,635; objc: 75,411; lisp: 42,144; pascal: 17,286; sh: 8,596; ml: 5,082; perl: 4,730; makefile: 3,591; awk: 3,523; javascript: 2,251; xml: 892; fortran: 672
file content (21 lines) | stat: -rw-r--r-- 722 bytes parent folder | download | duplicates (12) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
 
// RUN: %clang_cl_asan %Od %s %Fe%t
// RUN: not %run %t 2>&1 | FileCheck %s

#include <malloc.h>

int main() {
  int *x = (int*)malloc(42 * sizeof(int));
  free(x);
  free(x);
  // CHECK: AddressSanitizer: attempting double-free on [[ADDR:0x[0-9a-f]+]]
  // CHECK-NEXT: {{#0 .* free }}
  // CHECK: {{ #[1-3] .* main .*double_free.cpp}}:[[@LINE-3]]
  // CHECK: [[ADDR]] is located 0 bytes inside of 168-byte region
  // CHECK-LABEL: freed by thread T0 here:
  // CHECK-NEXT: {{#0 .* free }}
  // CHECK: {{ #[1-3] .* main .*double_free.cpp}}:[[@LINE-8]]
  // CHECK-LABEL: previously allocated by thread T0 here:
  // CHECK-NEXT: {{#0 .* malloc }}
  // CHECK: {{ #[1-3] .* main .*double_free.cpp}}:[[@LINE-12]]
  return 0;
}