fix(jxl): guard corrupt basic-info dimensions early#5305
Merged
Conversation
Run check_open on JXL basic-info dimensions/channels before decode output allocation to prevent oversized allocation paths on malformed input. Also update ref output for libjxl 0.12.0. Assisted-by: GitHub Copilot / GPT-5.3-Codex Signed-off-by: Larry Gritz <lg@larrygritz.com>
jessey-git
reviewed
Jul 8, 2026
| if (!check_open(earlyspec, { 0, (1 << 30) - 1, 0, (1 << 30) - 1, 0, | ||
| 1, 0, 4099 })) { | ||
| return false; | ||
| } |
Contributor
There was a problem hiding this comment.
Do we need the other check_open call below this still? It seems like every file is going to hit this JXL_DEC_BASIC_INFO conditional block and fill in the info struct.
Collaborator
Author
There was a problem hiding this comment.
Quite right. I made an amendment.
missing basic info. Signed-off-by: Larry Gritz <lg@larrygritz.com>
This file contains hidden or 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
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
2 participants
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Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be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.
Run check_open on JXL basic-info dimensions/channels before decode output allocation to prevent oversized allocation paths on malformed input.
Also update ref output for libjxl 0.12.0.
Assisted-by: GitHub Copilot / GPT-5.3-Codex