v30 interop OZ audit, M-04

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What ❔

Why ❔

Checklist

• PR title corresponds to the body of PR (we generate changelog entries from PRs).
• Tests for the changes have been added / updated.
• Documentation comments have been added / updated.

[github-actions]

Coverage after merging vg/v30-oz-m04 into kl/medium-interop will be

84.82%

Coverage Report

File	Stmts	Branches	Funcs	Lines	Uncovered Lines
contracts/bridge
BridgeHelper.sol	100%	100%	100%	100%
BridgedStandardERC20.sol	96.25%	100%	92.31%	97.01%	231–232
L1ERC20Bridge.sol	97.78%	100%	100%	97.30%	261
L1Nullifier.sol	88.44%	100%	87.10%	88.69%	129–130, 182, 191, 432–433, 436, 462, 647, 649, 698, 710, 713, 715, 731, 745–746, 750–751
UpgradeableBeaconDeployer.sol	0%	100%	0%	0%	15–16, 18, 20–21
contracts/bridge/asset-router
AssetRouterBase.sol	85.90%	100%	70.59%	90.16%	128, 200, 310, 49, 58, 81
L1AssetRouter.sol	91.62%	100%	86.67%	92.70%	104, 319, 330, 412–413, 432, 590, 601, 615, 620
contracts/bridge/asset-tracker
AssetTrackerBase.sol	78.38%	100%	66.67%	84%	113, 142, 59, 84
GWAssetTracker.sol	80.92%	100%	77.14%	81.50%	101–103, 109, 113, 116–117, 124–125, 136–137, 219, 229, 236, 238, 240, 242–244, 260, 305, 309, 345, 472–473, 475, 481, 485, 489, 495–496, 500, 519–522, 609–610, 78, 97–99
L1AssetTracker.sol	97.89%	100%	100%	97.52%	226, 404, 61
LegacySharedBridgeAddresses.sol	0%	100%	0%	0%	23, 26, 29, 32, 36–41, 43
contracts/bridge/interfaces
AssetHandlerModifiers.sol	75%	100%	100%	66.67%	13
contracts/bridge/ntv
L1NativeTokenVault.sol	73.83%	100%	77.27%	72.94%	101–103, 150, 154–156, 179–185, 187, 256–257, 259, 270, 272, 278, 92–93
NativeTokenVaultBase.sol	82.08%	100%	66.67%	85.88%	136–139, 141–142, 144, 219, 310, 46, 48, 494, 496, 50, 52, 564, 601, 611–612, 616–617, 88, 93, 98
contracts/common
MessageVerification.sol	94.44%	100%	88.89%	96.30%	88
ReentrancyGuard.sol	95%	100%	100%	94.12%	79
contracts/common/l2-helpers
L2ContractHelper.sol	94.34%	100%	100%	93.33%	102, 108, 112
SystemContractsCaller.sol	52.50%	100%	60%	51.43%	44–45, 47, 49, 51, 53, 66, 69, 72, 75, 78, 83, 89, 91, 93, 96, 98
contracts/common/libraries
DataEncoding.sol	82.14%	100%	78.26%	83.15%	129–130, 137–138, 183, 197, 225, 233–234, 245, 259, 270, 288, 294, 50
DynamicIncrementalMerkle.sol	81.03%	100%	85.71%	80.39%	143–146, 148–151, 153–154
DynamicIncrementalMerkleMemory.sol	98.96%	100%	100%	98.84%	196
FullMerkle.sol	100%	100%	100%	100%
FullMerkleMemory.sol	85.86%	100%	100%	84.78%	114, 131, 149, 163, 89–98
Merkle.sol	98.15%	100%	100%	97.96%	83
MessageHashing.sol	96%	100%	100%	95.38%	118, 135, 154
SemVer.sol	100%	100%	100%	100%
UncheckedMath.sol	100%	100%	100%	100%
UnsafeBytes.sol	100%	100%	100%	100%
ZKSyncOSBytecodeInfo.sol	0%	100%	0%	0%	17, 22, 30, 33
contracts/common/libraries/TransientPrimitives
TransientPrimitives.sol	100%	100%	100%	100%
contracts/core/bridgehub
BridgehubBase.sol	88.83%	100%	88.89%	88.82%	134, 141, 159, 189, 207, 261, 264, 283, 299, 330, 38, 40, 42, 490, 493, 552, 556, 559
L1Bridgehub.sol	90%	100%	91.67%	89.77%	207, 282, 286–287, 290, 300, 66–67, 90
L2Bridgehub.sol	47.83%	100%	40%	50%	104–105, 113, 115–116, 125, 130–131, 133–134, 46, 48–51, 77, 90–91
contracts/core/chain-asset-handler
ChainAssetHandlerBase.sol	79.12%	100%	75%	80%	129–130, 180, 183, 195–196, 250, 267, 44, 46, 48, 50, 89, 96–97
L1ChainAssetHandler.sol	92.68%	100%	88.89%	93.75%	68–69
L2ChainAssetHandler.sol	88.24%	100%	87.50%	88.46%	121, 70, 94
contracts/core/chain-registration
ChainRegistrationSender.sol	88.24%	100%	100%	85.19%	41, 85, 89, 95
contracts/core/ctm-deployment
CTMDeploymentTracker.sol	73.47%	100%	81.82%	71.05%	108, 112, 116, 141, 145–146, 34, 42, 67, 80–81
contracts/core/message-root
L1MessageRoot.sol	67.44%	100%	75%	65.71%	104, 108–109, 65–66, 72–73, 81, 85, 89, 91–92
L2MessageRoot.sol	60%	100%	44.44%	64.52%	39–40, 45–46, 50, 57, 62–63, 68–70
MessageRootBase.sol	82.30%	100%	76.19%	83.70%	113, 117, 123–125, 131–133, 196, 212, 285, 314, 35, 38, 40
contracts/governance
AccessControlRestriction.sol	100%	100%	100%	100%
ChainAdmin.sol	97.87%	100%	100%	97.30%	39
ChainAdminOwnable.sol	44.83%	100%	40%	45.83%	28, 38–40, 46–48, 57, 66, 77–79, 81
Governance.sol	100%	100%	100%	100%
L2ProxyAdminDeployer.sol	0%	100%	0%	0%	16–18, 20
PermanentRestriction.sol	88.80%	100%	100%	87.39%	104, 111–112, 200–201, 204–205, 208, 210–211, 240, 288, 310, 341
ServerNotifier.sol	93.10%	100%	100%	90.91%	55, 65
TransitionaryOwner.sol	0%	100%	0%	0%	16–17, 21–23
contracts/governance/restriction
Restriction.sol	60%	100%	50%	66.67%	21
RestrictionValidator.sol	100%	100%	100%	100%
contracts/interop
AttributesDecoder.sol	100%	100%	100%	100%
InteropCenter.sol	93.29%	100%	89.47%	93.79%	114, 202, 428, 502, 54–55, 59–60, 72
InteropDataEncoding.sol	100%	100%	100%	100%
InteropHandler.sol	90.91%	100%	81.82%	91.92%	33–35, 377, 399, 404, 41–42
L2MessageVerification.sol	90%	100%	100%	88.89%	35
contracts/l2-upgrades
L2ComplexUpgrader.sol	0%	100%	0%	0%	23–25, 39, 44, 46, 56, 62–63, 70, 79–81, 84,

[0xValera]

This was merged into kl/v30-audit-base here