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fix(lib/babe): check if authority index is in the authorities range #2601

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merged 4 commits into from
Jun 21, 2022
Merged

fix(lib/babe): check if authority index is in the authorities range #2601

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9d20bae
fix: check for negative values
EclesioMeloJunior Jun 13, 2022
199efc8
Update lib/babe/verify.go
EclesioMeloJunior Jun 14, 2022
cee7244
Update verify.go
EclesioMeloJunior Jun 15, 2022
b9268b9
Update verify.go
EclesioMeloJunior Jun 15, 2022
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2 changes: 1 addition & 1 deletion lib/babe/verify.go
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Original file line number Diff line number Diff line change
Expand Up @@ -388,7 +388,7 @@ func (b *verifier) verifyPreRuntimeDigest(digest *types.PreRuntimeDigest) (scale
authIdx = d.AuthorityIndex
}

if len(b.authorities) <= int(authIdx) {
if uint64(len(b.authorities)) < uint64(authIndex) {
logger.Tracef("verifyPreRuntimeDigest invalid auth index %d, we have %d auths",
authIdx, len(b.authorities))
return nil, ErrInvalidBlockProducerIndex
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