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28 lines
700 B
Go
28 lines
700 B
Go
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// Copyright 2022 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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//go:build goexperiment.arenas
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package main
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import "arena"
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func main() {
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a := arena.NewArena()
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x := arena.New[[200]byte](a)
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x[0] = 9
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a.Free()
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// Use after free.
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//
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// ASAN should detect this deterministically as Free
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// should poison the arena memory.
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//
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// MSAN should detect that this access is to freed
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// memory. This may crash with an "accessed freed arena
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// memory" error before MSAN gets a chance, but if MSAN
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// was not enabled there would be a chance that this
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// could fail to crash on its own.
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println(x[0])
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}
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