Some L2s can't support chainlink price feeds
Summary
Some L2s can't support chainlink price feeds
Vulnerability Details
About reseed L2, sponsors confirm in discord:
L2: EVM equivalent L2s;
anything hardcoded in that relies on assumptions specific to eth mainnet would also be valid, regardless of L2. things like block time, gas costs, fee based ordering of transactions, available opcodes, etc.
Beanstalk protocol uses chainlink price feeds to get ETH/USD price and stETH/ETH price. Chainlink price feeds is available on Arbitrum/Optimism/BASE/Metis/Scroll. Other L2s don't support chainlink price feeds for now.
Impact
Can't get necessary price in some L2s using current oracle code.
Tools Used
manual
Recommendations
Don't reseed L2 which won't support chainlink price feed or use another price feeds like pyth.
Lead Judging Commences
Informational/Gas
Invalid as per docs https://docs.codehawks.com/hawks-auditors/how-to-determine-a-finding-validity
`stETH:ETH` price feed not available everywhere
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