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Merge pull request #13603 from AdamKorcz/fuzz3

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raft: fix out-of-bounds in maybeAppend
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Piotr Tabor 2022-01-17 16:11:46 +01:00 committed by GitHub
commit 22f142a9f5
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1 changed files with 3 additions and 0 deletions
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raft/log.go
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@ -95,6 +95,9 @@ func (l *raftLog) maybeAppend(index, logTerm, committed uint64, ents ...pb.Entry
l.logger.Panicf("entry %d conflict with committed entry [committed(%d)]", ci, l.committed) l.logger.Panicf("entry %d conflict with committed entry [committed(%d)]", ci, l.committed)
default: default:
offset := index + 1 offset := index + 1
if ci-offset > uint64(len(ents)) {
l.logger.Panicf("index, %d, is out of range [%d]", ci-offset, len(ents))
}
l.append(ents[ci-offset:]...) l.append(ents[ci-offset:]...)
} }
l.commitTo(min(committed, lastnewi)) l.commitTo(min(committed, lastnewi))