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asan2_fail.go
// 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) }
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