Base releases block production interruption analysis report: Sequencer bug causes brief chain outage, protocol stress testing to be strengthened

Odaily Planet Daily News Base officially released a block production interruption analysis report, which revealed that the Base mainnet experienced two block production interruptions on June 25 and 26, lasting 116 minutes and 20 minutes respectively. On-chain asset security was unaffected, and funds remained safe at all times. The root cause of the incident was a vulnerability in the sequencer's block construction logic: after a transaction execution failure, the old journal state was not properly cleared, causing subsequent legitimate transactions to encounter gas calculation errors during execution, thereby generating invalid state transition blocks and halting block production on the entire L2 chain.

Base stated that it has fixed the issue through a patch and will strengthen the protocol's fuzz testing and stress testing framework to identify potential malicious transaction paths, while optimizing monitoring and operational processes. Additionally, it plans to introduce a recovery mechanism to enhance rapid recovery capabilities in similar future events.