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Merge pull request #882 from gzliudan/fix_divide_zero

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core: fix integer divide by zero in the function `ValidateHeaderChain`
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Daniel Liu 2025-02-26 15:05:16 +08:00 committed by GitHub
commit ee516cb291
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1 changed files with 10 additions and 6 deletions
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16
core/headerchain.go
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@ -233,14 +233,18 @@ func (hc *HeaderChain) ValidateHeaderChain(chain []*types.Header, checkFreq int)
// Generate the list of seal verification requests, and start the parallel verifier
seals := make([]bool, len(chain))
for i := 0; i < len(seals)/checkFreq; i++ {
index := i*checkFreq + hc.rand.Intn(checkFreq)
if index >= len(seals) {
index = len(seals) - 1
if checkFreq != 0 {
// In case of checkFreq == 0 all seals are left false.
for i := 0; i < len(seals)/checkFreq; i++ {
index := i*checkFreq + hc.rand.Intn(checkFreq)
if index >= len(seals) {
index = len(seals) - 1
}
seals[index] = true
}
seals[index] = true
// Last should always be verified to avoid junk
seals[len(seals)-1] = true
}
seals[len(seals)-1] = true // Last should always be verified to avoid junk
abort, results := hc.engine.VerifyHeaders(hc, chain, seals)
defer close(abort)