From 2c7e3a522c1d7717fb7ec3c63b3d7c8fb2c35dcf Mon Sep 17 00:00:00 2001
From: Michael Oborne <mich146@hotmail.com>
Date: Thu, 9 Jan 2025 13:57:42 +1100
Subject: [PATCH] MAVFtp: fix max payload size check

---
 ExtLibs/ArduPilot/Mavlink/MAVFtp.cs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ExtLibs/ArduPilot/Mavlink/MAVFtp.cs b/ExtLibs/ArduPilot/Mavlink/MAVFtp.cs
index 43dd52d7c2..cbde5ce281 100644
--- a/ExtLibs/ArduPilot/Mavlink/MAVFtp.cs
+++ b/ExtLibs/ArduPilot/Mavlink/MAVFtp.cs
@@ -2223,7 +2223,7 @@ public bool kCmdWriteFile(Stream srcfile, string friendlyname, CancellationToken
                         return true;
                     }
                     int burstmax = 8;
-                    if(stream.Position > payload.offset + (rwSize* burstmax))
+                    if(stream.Position > payload.offset + (payload.data.Length * burstmax))
                     {
                         stream.Position = payload.offset;
                         Array.Resize(ref payload.data, rwSize);