fix: corrupt tls handshake caused by buffer over read #39
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Outdated suggestions cannot be applied.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.
I hereby agree to the terms of the CLA available at: https://databend.rs/dev/policies/cla/
Summary
This change fixes occasional issue with tls handshake. Due to the issue with truncating wrong part of buffer in reader, the
restpart of bytes are dropped. Tls stream will end up with invalid partial handshake packet and throws "received corrupt message" error.Why this only happens on Tls?
Because Tls is the only scenario that client sends two consecutive packets. A normal request-response packet requires reader to read to the end of a packet so it never leaves remaining data.