Replace a few instances of unwrap() that could cause crashes during fuzzing runs with a returned error. Introduce a new MockError variant for errors accessing guest memory.
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Summary of the PR
Replace a few instances of unwrap() that could cause crashes during fuzzing runs with a returned error. Introduce a new MockError variant for errors accessing guest memory.
These crashes were found with the fuzzer in #246 (e.g. https://buildkite.com/rust-vmm/vm-virtio-ci/builds/858#01890e21-2688-4fbe-a801-822f5dae4dae).
Requirements
Before submitting your PR, please make sure you addressed the following requirements:
git commit -s), and the commit message has max 60 characters for the summary and max 75 characters for each description line.unsafecode is properly documented.