Repository navigation
Bound UDP receive buffers to the IPv4 payload limit - #1698
Merged
Lorenzobattistela merged 2 commits intoOct 19, 2026
Merged
Conversation
oxura
changed the title
Lorenzobattistela
approved these changes
Oct 19, 2026
Merged
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
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Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be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 #1695.
A caller can ask for more bytes than a legal IPv4 datagram can contain. Cap the receive allocation at 65,507 bytes on both backends, without changing truncation or zero-limit errors.
Removed the JS codec and byte-list optimizations following #1644. The reference helpers are unchanged; this PR now just covers UDP capacity.
The real socket regression prints
xandabcon Bun and native C. Local repo gate: 54/54. The original largest-payload checks are in #1695; private mini-cluster gates weren’t run.AI-assisted.