fuzzing: initial fuzzing implementation #113
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joergroedel
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Oct 12, 2023
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Last version: rebased on main and fixed the ACPI harness to accommodate the new |
Freax13
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Oct 18, 2023
Refactor the public function parse_fw_meta_data() so that the caller can provide an slice containing the firmware metadata. This will help building a fuzzing harness around this interface Signed-off-by: Carlos López <[email protected]>
Add fuzzing to the COCONUT SVSM project via cargo-fuzz. This commit adds the base infrastructure for fuzzing, as well as two harnesses for testing the fw_meta and ACPI table interfaces respectively. This works towards issue coconut-svsm#34. Signed-off-by: Carlos López <[email protected]>
Add documentation (FUZZING.md) regarding the use of fuzzing harnesses via cargo-fuzz. Signed-off-by: Carlos López <[email protected]>
Signed-off-by: Carlos López <[email protected]>
We were runninng clippy on tests in Github Actions, but not locally. Additionally, run it con fuzzing harnesses as well. Signed-off-by: Carlos López <[email protected]>
Add a new method to retrieve the current position of the FileHandle. Signed-off-by: Carlos López <[email protected]>
Add a new harness to fuzz the filesystem implementation by issuing random operations such as creating, opening and closing files and reading and writing from them. Signed-off-by: Carlos López <[email protected]>
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Limit hypervisor-controlled allocation sizes to prevent potential OOM issues. This is done in places where big allocation sizes(for example a huge number of firmware files or very big ACPI tables) would make no sense in a reasonable implementation. This will also be useful for fuzzing performance once coconut-svsm#113 is merged. Signed-off-by: Carlos López <[email protected]>
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This PR adds:
cargo-fuzz.fw_meta)Works towards #34