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core/vm: fix off-by-one error

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This commit is contained in:
Marius van der Wijden 2025-02-07 14:15:20 +01:00
parent 644823db48
commit 8a84cd1b97
1 changed files with 2 additions and 2 deletions
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4
core/vm/eof_instructions.go
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@ -131,7 +131,7 @@ func opEOFCreate(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) (
offset, size = scope.Stack.pop(), scope.Stack.pop() offset, size = scope.Stack.pop(), scope.Stack.pop()
input = scope.Memory.GetCopy(offset.Uint64(), size.Uint64()) input = scope.Memory.GetCopy(offset.Uint64(), size.Uint64())
) )
if int(idx) >= len(scope.Contract.Container.subContainerOffsets) { if int(idx) >= len(scope.Contract.Container.subContainerOffsets)-1 {
return nil, fmt.Errorf("invalid subcontainer") return nil, fmt.Errorf("invalid subcontainer")
} }
subContainer := scope.Contract.Container.subContainerAt(int(idx)) subContainer := scope.Contract.Container.subContainerAt(int(idx))
@ -182,7 +182,7 @@ func opReturnContract(pc *uint64, interpreter *EVMInterpreter, scope *ScopeConte
offset = scope.Stack.pop() offset = scope.Stack.pop()
size = scope.Stack.pop() size = scope.Stack.pop()
) )
if int(idx) >= len(scope.Contract.Container.subContainerOffsets) { if int(idx) >= len(scope.Contract.Container.subContainerOffsets)-1 {
return nil, fmt.Errorf("invalid subcontainer") return nil, fmt.Errorf("invalid subcontainer")
} }
ret := scope.Memory.GetPtr(offset.Uint64(), size.Uint64()) ret := scope.Memory.GetPtr(offset.Uint64(), size.Uint64())