区块链漏洞风险提示|Cosmos Hub 链节点崩溃漏洞

// AssertInvariants asserts all registered invariants. If any invariant fails,// the method panics.func (k Keeper) AssertInvariants(ctx sdk.Context) {  ...  for i, ir := range invarRoutes {    ...    if res, stop := ir.Invar(ctx); stop {      // TODO: Include app name as part of context to allow for this to be      // variable.      panic(fmt.Errorf("invariant broken: %sn"+        "tCRITICAL please submit the following transaction:n"+        "tt tx crisis invariant-broken %s %s", res, ir.ModuleName, ir.Route))    }  }    ...}

// ModuleAccountInvariant checks that the coins held by the distr ModuleAccount// is consistent with the sum of validator outstanding rewardsfunc ModuleAccountInvariant(k Keeper) sdk.Invariant {  return func(ctx sdk.Context) (string, bool) {        ...    communityPool := k.GetFeePoolCommunityCoins(ctx)        ...    macc := k.GetDistributionAccount(ctx)    balances := k.bankKeeper.GetAllBalances(ctx, macc.GetAddress())
    broken := !balances.IsEqual(expectedInt)    return sdk.FormatInvariant(...), broken  }}

// BlockedAddrs returns all the app's module account addresses that are not// allowed to receive external tokens.func (app *GaiaApp) BlockedAddrs() map[string]bool {  blockedAddrs := make(map[string]bool)  for acc := range maccPerms {    blockedAddrs[authtypes.NewModuleAddress(acc).String()] = !allowedReceivingModAcc[acc]  }
  return blockedAddrs}

// module accounts that are allowed to receive tokens  allowedReceivingModAcc = map[string]bool{    distrtypes.ModuleName: true, // ModuleName = "distribution"  }