Fix blake2f precompile for rounds > 0x4000000

s1na · s1na · commit 1b5538e22f07 · 2019-11-11T17:18:18.000+01:00
diff --git a/lib/evm/precompiles/09-blake2f.ts b/lib/evm/precompiles/09-blake2f.ts
@@ -404,7 +404,7 @@ export default function(opts: PrecompileInput): ExecResult {
   const f = lastByte === 1
 
   const gasUsed = new BN(opts._common.param('gasPrices', 'blake2Round'))
-  gasUsed.imuln(rounds)
+  gasUsed.imul(new BN(rounds))
   if (opts.gasLimit.lt(gasUsed)) {
     return OOGResult(opts.gasLimit)
   }

Original file line number	Diff line number	Diff line change
`@@ -404,7 +404,7 @@ export default function(opts: PrecompileInput): ExecResult {`
`404`	`404`	`const f = lastByte === 1`
`405`	`405`
`406`	`406`	`const gasUsed = new BN(opts._common.param('gasPrices', 'blake2Round'))`
`407`		`- gasUsed.imuln(rounds)`
	`407`	`+ gasUsed.imul(new BN(rounds))`
`408`	`408`	`if (opts.gasLimit.lt(gasUsed)) {`
`409`	`409`	`return OOGResult(opts.gasLimit)`
`410`	`410`	`}`