From a97df4bb524d0f53276a0662e286b8b385a625b1 Mon Sep 17 00:00:00 2001
From: Jonathan Bennett <jbennett@incomsystems.biz>
Date: Fri, 27 Jun 2025 11:22:01 -0500
Subject: [PATCH] Sanity check incoming UDP

---
 src/mesh/udp/UdpMulticastHandler.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/mesh/udp/UdpMulticastHandler.h b/src/mesh/udp/UdpMulticastHandler.h
index ac4f86020..d1cc1065c 100644
--- a/src/mesh/udp/UdpMulticastHandler.h
+++ b/src/mesh/udp/UdpMulticastHandler.h
@@ -45,6 +45,9 @@ class UdpMulticastHandler final
         LOG_DEBUG("Decoding MeshPacket from UDP len=%u", packetLength);
         bool isPacketDecoded = pb_decode_from_bytes(packet.data(), packetLength, &meshtastic_MeshPacket_msg, &mp);
         if (isPacketDecoded && router && mp.which_payload_variant == meshtastic_MeshPacket_encrypted_tag) {
+            mp.pki_encrypted = false;
+            mp.public_key.size = 0;
+            memset(mp.public_key.bytes, 0, sizeof(mp.public_key.bytes));
             UniquePacketPoolPacket p = packetPool.allocUniqueCopy(mp);
             // Unset received SNR/RSSI
             p->rx_snr = 0;