Merge pull request #18 from init4tech/anna/zero-sequencer

ensure sequencer is not zero address
init4tech · May 7, 2024 · e9abe3f · e9abe3f
2 parents 14bf33c + a2f214f
commit e9abe3f
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/Zenith.sol b/src/Zenith.sol
@@ -120,7 +120,7 @@ contract Zenith is Passage, AccessControlDefaultAdminRules {
         address sequencer = ecrecover(blockCommit, v, r, s);
 
         // assert that signature is valid && sequencer is permissioned
-        if (!hasRole(SEQUENCER_ROLE, sequencer)) revert BadSignature(sequencer);
+        if (sequencer == address(0) || !hasRole(SEQUENCER_ROLE, sequencer)) revert BadSignature(sequencer);
 
         // assert this is the first rollup block submitted for this host block
         if (lastSubmittedAtBlock[header.rollupChainId] == block.number) revert OneRollupBlockPerHostBlock();