| Linux in-mum-web1499.main-hosting.eu 5.14.0-503.40.1.el9_5.x86_64 #1 SMP PREEMPT_DYNAMIC Mon May 5 06:06:04 EDT 2025 x86_64 Path : /opt/golang/1.22.0/src/crypto/sha1/ |
| Current File : //opt/golang/1.22.0/src/crypto/sha1/issue15617_test.go |
// Copyright 2016 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.
//go:build amd64 && (linux || darwin)
package sha1_test
import (
"crypto/sha1"
"syscall"
"testing"
)
func TestOutOfBoundsRead(t *testing.T) {
const pageSize = 4 << 10
data, err := syscall.Mmap(0, 0, 2*pageSize, syscall.PROT_READ|syscall.PROT_WRITE, syscall.MAP_ANON|syscall.MAP_PRIVATE)
if err != nil {
panic(err)
}
if err := syscall.Mprotect(data[pageSize:], syscall.PROT_NONE); err != nil {
panic(err)
}
for i := 0; i < pageSize; i++ {
sha1.Sum(data[pageSize-i : pageSize])
}
}