Rsdp::search_for_on_bios reads EBDA segment without validation
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- Dominant language
- Rust
- Stars
- 245
- Forks
- 93
- Avg merge
- 2d 8h
- Merged PRs (30d)
- 15
Description
This is a low priority unfixed issue from The Mega Issue (#315)
To quote Isaac:
"We read from the EBDA segment address from the BIOS Data Area without validation. If corrupted or called on a UEFI-only system, bad things could happen. We could potentially add some validation here?"
There's not masses to be done - perhaps even nothing more than adding a Safety: constraint of Don't call on a BIOS system
Contributor guide
No contributing guide indexed for this repository
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by locating Rsdp::search_for_on_bios and reading how it obtains the EBDA segment address from the BIOS Data Area. Check the existing safety documentation and surrounding ACPI assumptions; done means the issue's validation or Safety constraint is addressed and the behavior is covered by the project's relevant tests, if any are found.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- rust
- Domain
- operating-systems
- Issue type
- Bug
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Active
- Clarity
- Needs clarification
- Newbie friendliness
- 48/100