loader: x86_64: elf: Avoid reading beyond file end #125
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Summary of the PR
The ELF header contains offsets that the loader uses to find other structures. If those offsets are beyond the end of the file (or would go past the end of the file) it is essential to error out when attempting to read those. Using
Read::read_exact()
permits this.Signed-off-by: Bo Chen chen.bo@intel.com
Co-authored-by: Rob Bradford robert.bradford@intel.com
Requirements
Before submitting your PR, please make sure you addressed the following
requirements:
git commit -s
), and the commitmessage has max 60 characters for the summary and max 75 characters for each
description line.
test.
Release" section of CHANGELOG.md (if no such section exists, please create one).
unsafe
code is properly documented.