fix: harden module parsers against malformed input#34
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The bounds check omitted the header size, so a crafted signature length could pass validation and underflow the slice offsets.
check_elf indexed bytes 4-6 after only verifying the 4-byte magic, panicking on files shorter than 7 bytes.
bleggett
approved these changes
Jun 30, 2026
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Fixes two panics when parsing untrusted/malformed module files:
src/signature/raw.rs): the bounds check omitted the header size, so a crafted signature length could pass validation and underflow the slice offsets.src/object/content.rs):check_elfread bytes 4-6 after only verifying the 4-byte magic, panicking on files shorter than 7 bytes.