crosvm/fuzz/zimage_fuzzer.rs
Dylan Reid ec058d6c46 vm_memory: A crate to hold vm-specific memory objects
Move GuestAddress and GuestMemory to a new crate for VM memory. This
will make separating sys_util and crosvm independent making it easier
to use sys_util functions outside of crosvm.

Change-Id: I12e14948ea85754dfa6267b3a3fb32b77ef6796e
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/2311251
Auto-Submit: Dylan Reid <dgreid@chromium.org>
Commit-Queue: Dylan Reid <dgreid@chromium.org>
Tested-by: Dylan Reid <dgreid@chromium.org>
Reviewed-by: Zach Reizner <zachr@chromium.org>
2020-07-24 21:42:34 +00:00

30 lines
905 B
Rust

// Copyright 2019 The Chromium OS Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#![no_main]
use cros_fuzz::fuzz_target;
use sys_util::SharedMemory;
use vm_memory::{GuestAddress, GuestMemory};
use std::fs::File;
use std::io::Write;
const MEM_SIZE: u64 = 256 * 1024 * 1024;
fn make_elf_bin(elf_bytes: &[u8]) -> File {
let mut shm = SharedMemory::anon().expect("failed to create shared memory");
shm.set_size(elf_bytes.len() as u64)
.expect("failed to set shared memory size");
shm.write_all(elf_bytes)
.expect("failed to write elf to shared memoy");
shm.into()
}
fuzz_target!(|bytes| {
let mut kimage = make_elf_bin(bytes);
let mem = GuestMemory::new(&[(GuestAddress(0), MEM_SIZE)]).unwrap();
let _ = kernel_loader::load_kernel(&mem, GuestAddress(0), &mut kimage);
});