opj_t1_encode_cblks: fix UBSAN signed integer overflow #1187
Conversation
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Fixes uclouvain#1053 / CVE-2018-5727 Note: I don't consider this issue to be a security vulnerability, in practice. At least with gcc or clang compilers on x86_64 which generate the same assembly code with or without that fix.
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
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Outdated suggestions cannot be applied.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.
Fixes #1053 / CVE-2018-5727
Note: I don't consider this issue to be a security vulnerability, in
practice.
At least with gcc or clang compilers on x86_64 which generate the same
assembly code with or without that fix.