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CI: fix integer underflow bug

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This commit is contained in:
James Dorfman 2024-05-10 05:42:15 +00:00
parent 73ed5dd541
commit c6aba4ac06
1 changed files with 4 additions and 1 deletions
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5
src/validation.cpp
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@ -2587,7 +2587,10 @@ bool CChainState::FlushStateToDisk(
(*it)->set_stored();
}
int trim_height = pindexBestHeader ? pindexBestHeader->nHeight - node::nMustKeepFullHeaders : 0;
int trim_height = 0;
if (pindexBestHeader && (uint64_t)pindexBestHeader->nHeight > node::nMustKeepFullHeaders) { // check first, to prevent underflow
trim_height = pindexBestHeader->nHeight - node::nMustKeepFullHeaders;
}
if (node::fTrimHeaders && trim_height > 0 && !ShutdownRequested()) {
static int nMinTrimHeight{0};
LogPrintf("Flushing block index, trimming headers, setTrimmableBlockIndex.size(): %d\n", setTrimmableBlockIndex.size());