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asan5_fail.go
package main import ( "fmt" "runtime" "unsafe" ) func main() { p := new([1024 * 1000]int) p[0] = 10 r := bar(&p[1024*1000-1]) fmt.Printf("r value is %d", r) } func bar(a *int) int { p := unsafe.Add(unsafe.Pointer(a), 2*unsafe.Sizeof(int(1))) runtime.ASanWrite(p, 8) // BOOM *((*int)(p)) = 10 return *((*int)(p)) }
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