From 6f10ec12b4c81e4d040b933b1e3ee01da5ac9a0c Mon Sep 17 00:00:00 2001 From: iximeow Date: Sun, 13 Apr 2025 19:34:39 -0700 Subject: fuzz cases: only 64 system registers, display should never panic --- fuzz/fuzz_targets/fresh-decode.rs | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) create mode 100644 fuzz/fuzz_targets/fresh-decode.rs (limited to 'fuzz/fuzz_targets') diff --git a/fuzz/fuzz_targets/fresh-decode.rs b/fuzz/fuzz_targets/fresh-decode.rs new file mode 100644 index 0000000..76a402e --- /dev/null +++ b/fuzz/fuzz_targets/fresh-decode.rs @@ -0,0 +1,21 @@ +//! decoding into a pre-existing instruction should not result in different outcomes compared to +//! decoding into a fresh instruction. if decoding succeeds, both outcomes should be equal. + +#![no_main] +use libfuzzer_sys::fuzz_target; + +use yaxpeax_arch::Decoder; + +fuzz_target!(|data: &[u8]| { + let decoder = yaxpeax_hexagon::InstDecoder::default(); + + let mut reused_inst = yaxpeax_hexagon::InstructionPacket::default(); + + let mut words = yaxpeax_arch::U8Reader::new(data); + // test decoding, may be ok or not, but should not panic + if let Ok(()) = decoder.decode_into(&mut reused_inst, &mut words) { + let mut words = yaxpeax_arch::U8Reader::new(data); + let fresh_inst = decoder.decode(&mut words).expect("decoded before, can decode again"); + assert_eq!(reused_inst, fresh_inst); + } +}); -- cgit v1.1