From b46554de6597ee9c7d7ab2f91af55fdac1be3928 Mon Sep 17 00:00:00 2001
From: orignal <i2porignal@yandex.ru>
Date: Mon, 31 Aug 2026 16:12:40 -0400
Subject: [PATCH] correct incorrect block size for padding block

---
 libi2pd/NTCP2.cpp | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/libi2pd/NTCP2.cpp b/libi2pd/NTCP2.cpp
index efbc29f2..f601d16b 100644
--- a/libi2pd/NTCP2.cpp
+++ b/libi2pd/NTCP2.cpp
@@ -1283,8 +1283,14 @@ namespace transport
 			LogPrint (eLogDebug, "NTCP2: Block type ", (int)blk, " of size ", size);
 			if (offset + size > len)
 			{
-				LogPrint (eLogError, "NTCP2: Unexpected block length ", size);
-				break;
+				if (blk == eNTCP2BlkPadding)
+					// padding is always last block and we set size up to end of frame
+					size = len - offset;
+				else
+				{
+					LogPrint (eLogError, "NTCP2: Unexpected block length ", size, " of type ", (int)blk);
+					break;
+				}
 			}
 			switch (blk)
 			{