Add BT_HDR length check for received AVCTP packets

Bug: 79944113
Test: Code compilation
Change-Id: I02c76ab8fad61669394062bf34656ea32f465b6a
Merged-In: I02c76ab8fad61669394062bf34656ea32f465b6a
(cherry picked from commit 4262b932e487b19d578d79e0120cf03291f44efc)

parent 41b34ade

system/stack/avct/avct_bcb_act.cc

+6 −0

Original line number	Diff line number	Diff line
		@@ -69,6 +69,12 @@ static BT_HDR* avct_bcb_msg_asmbl(UNUSED_ATTR tAVCT_BCB* p_bcb, BT_HDR* p_buf) {
		uint8_t* p;
		uint8_t pkt_type;

		if (p_buf->len == 0) {
		osi_free_and_reset((void**)&p_buf);
		android_errorWriteLog(0x534e4554, "79944113");
		return nullptr;
		}

		/* parse the message header */
		p = (uint8_t*)(p_buf + 1) + p_buf->offset;
		pkt_type = AVCT_PKT_TYPE(p);