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fix(types): Implement nil check on commit.ValidateBasic #1094

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renaynay
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Found in celestia-node header validation check. If a malformed ExtendedHeader with a nil Commit is broadcasted through the network, it would cause recipients to panic. We decided the check belongs in core as ValidatorSet also does a nil check.

…il commit will short-circuit without causing panic
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@cmwaters cmwaters left a comment

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I'll see if we can upstream this

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Probably doesn't make too much sense because the checks are all prior to the ValidateBasic call:

https://github.com/cometbft/cometbft/blob/0459474fed602545a5fcc373e5d36a1e04083a8a/types/block.go#L68

@Wondertan
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Wondertan commented Sep 25, 2023

It make sense to remove the call from there and keep it inside of ValidateBasic. Also, SignedHeader does the same check that could be moved. The main reason is to be consistent with other ValidateBasics that do the nil check internally

@evan-forbes evan-forbes merged commit 13b9e92 into celestiaorg:main Sep 25, 2023
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cmwaters pushed a commit that referenced this pull request Sep 28, 2023
Found in celestia-node header validation check. If a malformed
`ExtendedHeader` with a nil Commit is broadcasted through the network,
it would cause recipients to panic. We decided the check belongs in core
as ValidatorSet also does a nil check.
evan-forbes pushed a commit that referenced this pull request Sep 28, 2023
Found in celestia-node header validation check. If a malformed
`ExtendedHeader` with a nil Commit is broadcasted through the network,
it would cause recipients to panic. We decided the check belongs in core
as ValidatorSet also does a nil check.
@faddat faddat mentioned this pull request Feb 22, 2024
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4 participants