[test] add fuzz_tbor_part_info - #673
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Pull request overview
Adds a new libFuzzer target to exercise the TBOR PartInfo operation in the fuzzing crate, integrating it into the fuzz workspace binaries.
Changes:
- Added
fuzz_tbor_part_infofuzz target underfuzz_targets/ddi/tbor/. - Registered the new fuzz target as a
[[bin]]infuzz/Cargo.toml.
Reviewed changes
Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.
| File | Description |
|---|---|
| fuzz/fuzz_targets/ddi/tbor/fuzz_tbor_part_info.rs | New fuzz harness invoking the TBOR PartInfo request against the emulator device. |
| fuzz/Cargo.toml | Adds the fuzz_tbor_part_info binary entry so it can be built/run by the fuzz crate tooling. |
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| use azihsm_ddi_tbor_types::TborPartInfoReq; | ||
| use libfuzzer_sys::fuzz_target; | ||
|
|
||
| fuzz_target!(|_input: &[u8]| { | ||
| let dev = common::open_emu_dev(); | ||
| let req = TborPartInfoReq; | ||
| common::fuzz_exec_op_tbor(&dev, &req); | ||
| }); |
…b.com/Azure/azihsm-sdk into user/v-davidz/add_tbor_part_info_fuzz
David Zimmermann (zimmy87)
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David Zimmermann (zimmy87)
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August 28, 2026 17:50
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Pull request overview
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Suppressed comments (1)
fuzz/fuzz_targets/ddi/tbor/fuzz_tbor_part_info.rs:16
- This fuzz target ignores the fuzzer input and always issues the same deterministic
PartInforequest, so coverage won’t vary with the corpus and libFuzzer will quickly stop making progress (it becomes a repeated smoke test rather than a fuzz target). Consider usinginputto exercise a variable code path, e.g. fuzz theTborPartInfoResptype-specific decoder on arbitrary bytes while still optionally keeping the emulator round-trip for the real opcode.
fuzz_target!(|_input: &[u8]| {
let dev = common::open_emu_dev();
let req = TborPartInfoReq;
common::fuzz_exec_op_tbor(&dev, &req);
});
David Zimmermann (zimmy87)
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August 31, 2026 17:19
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…d_tbor_part_info_fuzz
Vishal Soni (vsonims)
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Vishal Soni (vsonims)
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David Zimmermann (zimmy87)
removed this pull request from stack #683
September 14, 2026 23:05
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