GHSA-FW38-PC54-JVX9 Klever-Go KVM: Throttler slot leak in trie account-data sync causes epoch bootstrap / state sync DoS

Summary The account-data trie syncers leak bounded throttler slots on error paths in syncDataTrie. Each failed trie sync permanently consumes one slot from the NumGoRoutinesThrottler, and the slot is never returned unless the sync succeeds or the root hash was already present. I confirmed this on...

Klever-Go KVM: Throttler slot leak in trie account-data sync causes epoch bootstrap / state sync DoS

Summary The account-data trie syncers leak bounded throttler slots on error paths in syncDataTrie. Each failed trie sync permanently consumes one slot from the NumGoRoutinesThrottler, and the slot is never returned unless the sync succeeds or the root hash was already present. I confirmed this on...

Klever-Go P2P MultiDataInterceptor leaks global throttler slots on malformed compressed batches (DoS)

Publisher note Fixed in v1.7.17. Operators running v1.7.17 should upgrade. The decompression-error path in MultiDataInterceptor.ProcessReceivedMessage now releases the global throttler slot before returning guarded defer after StartProcessing, disabled when the asynchronous goroutine takes...