Language: Go
Label: vulnerable
CWE: CWE-770 \u2014 Allocation of Resources Without Limits or Throttling
The product allocates a reusable resource or group of resources on behalf of an actor without imposing any restrictions on the size or number of resources that can be allocated, in violation of the intended security policy for that actor.

Code:
func (e *Engine) MessageSent(p peer.ID, m bsmsg.BitSwapMessage) {
	l := e.findOrCreate(p)
	l.lk.Lock()
	defer l.lk.Unlock()

	// Remove sent blocks from the want list for the peer
	for _, block := range m.Blocks() {
		e.scoreLedger.AddToSentBytes(l.Partner, len(block.RawData()))
		l.wantList.RemoveType(block.Cid(), pb.Message_Wantlist_Block)
	}

	// Remove sent block presences from the want list for the peer
	for _, bp := range m.BlockPresences() {
		// Don't record sent data. We reserve that for data blocks.
		if bp.Type == pb.Message_Have {
			l.wantList.RemoveType(bp.Cid, pb.Message_Wantlist_Have)
		}
	}
}