Submitted by 0x52, also found by kyteg
RewardDistributor.sol#L172-L210
Rewards owed burned NFT are permanently locked.
After an NFT is burned, owner of token is set to address(0).
This causes issues in multiStakerClaim L208. GOLOM uses OZs implementation of ERC20 which doesnt allow tokens to be sent to address(0). Because the owner of the burned NFT is address(0) multiStakerClaim will always revert when called for a burned NFT trapping rewards in contract forever.
Implement a clawback clause inside the multiStakerClaim function. If the token is burned (i.e. owned by address(0)) the rewards should be transferred to different address. These rewards could be claimed to the treasury or burned, etc.
0xsaruman (Golom) confirmed, but disagreed with severity and commented:
