lightning: fix risk of OOM (#40443) (#44333)

[ti-chi-bot]

This is an automated cherry-pick of #44333

This is a manually cherry-pick of #40232 and #40443

What problem does this PR solve?

Issue Number: close #40400

Problem Summary:

What is changed and how it works?

• check if the buf has exceeded the max length of transaction

Check List

Tests

• Unit test
• Integration test
• Manual test (add detailed scripts or steps below)
• No code

Side effects

• Performance regression: Consumes more CPU
• Performance regression: Consumes more Memory
• Breaking backward compatibility

Documentation

• Affects user behaviors
• Contains syntax changes
• Contains variable changes
• Contains experimental features
• Changes MySQL compatibility

Release note

Please refer to Release Notes Language Style Guide to write a quality release note.

None

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: lance6716, okJiang

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• OWNERS [lance6716,okJiang]

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[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2023-06-30 02:58:45.431341352 +0000 UTC m=+54408.805919203: ☑️ agreed by lance6716.
• 2023-06-30 03:07:30.516558713 +0000 UTC m=+54933.891136564: ☑️ agreed by okJiang.