Submitted by gzeon.
Fund can be lost if the L1 call value provided is insufficient to cover _maxSubmissionCost, or stuck if insufficient to cover _maxSubmissionCost + (_maxGas * _gasPriceBid).
outboundTransfer in L1LPTGateway does not check if the call value is sufficient, if it is < _maxSubmissionCost the retryable ticket creation will fail and fund is lost; if it is <_maxSubmissionCost + (_maxGas * _gasPriceBid) the ticket would require manual execution.
https://github.com/livepeer/arbitrum-lpt-bridge/blob/ebf68d11879c2798c5ec0735411b08d0bea4f287/contracts/L1/gateway/L1LPTGateway.sol#L80
Add check similar to the one used in L1GatewayRouter provided by Arbitrum team
https://github.com/OffchainLabs/arbitrum/blob/b8366005a697000dda1f57a78a7bdb2313db8fe2/packages/arb-bridge-peripherals/contracts/tokenbridge/ethereum/gateway/L1GatewayRouter.sol#L236
yondonfu (Livepeer) confirmed and disagreed with severity:
0xleastwood (judge) commented:
yondonfu (Livepeer) resolved:
