File: double_free.cpp

package info (click to toggle)
llvm-toolchain-18 1%3A18.1.8-18
  • links: PTS, VCS
  • area: main
  • in suites: trixie
  • size: 1,908,340 kB
  • sloc: cpp: 6,667,937; ansic: 1,440,452; asm: 883,619; python: 230,549; objc: 76,880; f90: 74,238; lisp: 35,989; pascal: 16,571; sh: 10,229; perl: 7,459; ml: 5,047; awk: 3,523; makefile: 2,987; javascript: 2,149; xml: 892; fortran: 649; cs: 573
file content (21 lines) | stat: -rw-r--r-- 702 bytes parent folder | download | duplicates (4) 
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-NEXT: {{#1 .* 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-NEXT: {{#1 .* main .*double_free.cpp}}:[[@LINE-8]]
// CHECK-LABEL: previously allocated by thread T0 here:
// CHECK-NEXT: {{#0 .* malloc }}
// CHECK-NEXT: {{#1 .* main .*double_free.cpp}}:[[@LINE-12]]
  return 0;
}