File: asan2_fail.go

package info (click to toggle)
golang-1.19 1.19.4-1
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 146,248 kB
  • sloc: asm: 117,015; ansic: 7,010; sh: 2,114; javascript: 1,119; perl: 1,099; python: 365; makefile: 109; cpp: 39; f90: 8; awk: 7; objc: 4
file content (34 lines) | stat: -rw-r--r-- 616 bytes parent folder | download | duplicates (24)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
// Copyright 2021 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

package main

/*
#include <stdlib.h>
#include <stdio.h>

int *p;
int* f() {
  int i;
  p = (int *)malloc(5*sizeof(int));
  for (i = 0; i < 5; i++) {
    p[i] = i+10;
  }
  return p;
}
*/
import "C"
import (
	"fmt"
	"unsafe"
)

func main() {
	a := C.f()
	q5 := (*C.int)(unsafe.Add(unsafe.Pointer(a), 4*5))
	// Access to C pointer out of bounds.
	*q5 = 100 // BOOM
	// We shouldn't get here; asan should stop us first.
	fmt.Printf("q5: %d, %x\n", *q5, q5)
}