From 7598fd220cd8ffa4d916ea765c8bdde84f1d6cb1 Mon Sep 17 00:00:00 2001
From: Copper280z <rocketman958@yahoo.com>
Date: Fri, 21 Aug 2026 14:05:34 -0400
Subject: [PATCH] guard against passing nullptr to memcpy

---
 Firmware/FFBoard/UserExtensions/Src/VescCAN.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/Firmware/FFBoard/UserExtensions/Src/VescCAN.cpp b/Firmware/FFBoard/UserExtensions/Src/VescCAN.cpp
index eed62ebae..d7a1fad56 100644
--- a/Firmware/FFBoard/UserExtensions/Src/VescCAN.cpp
+++ b/Firmware/FFBoard/UserExtensions/Src/VescCAN.cpp
@@ -494,7 +494,8 @@ void VescCAN::decodeEncoderPosition(const float newPos) {
  */
 void VescCAN::sendMsg(uint8_t cmd, uint8_t *buffer, uint8_t len) {
 	CAN_tx_msg msg;
-	memcpy(&msg.data, buffer, len);
+	if (buffer)
+		memcpy(&msg.data, buffer, len);
 	msg.header.rtr = false;
 	msg.header.length = len;
 	msg.header.extId = true;