From 938a48d9b179264ba7c610a750419ce3f830357d Mon Sep 17 00:00:00 2001
From: JacobBarthelmeh <jacob@wolfssl.com>
Date: Thu, 8 Jun 2023 02:37:21 -0600
Subject: [PATCH] sanity check on socket return value for timeout with DTLS13

---
 src/internal.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/internal.c b/src/internal.c
index b675390a1..45124fd64 100644
--- a/src/internal.c
+++ b/src/internal.c
@@ -10418,6 +10418,9 @@ static int GetDtlsRecordHeader(WOLFSSL* ssl, word32* inOutIdx,
      * DTLS_RECORD_HEADER_SZ */
     if (ssl->buffers.inputBuffer.length - *inOutIdx < DTLS_RECORD_HEADER_SZ) {
         ret = GetInputData(ssl, DTLS_RECORD_HEADER_SZ);
+        /* Check if Dtls13RtxTimeout(ssl) returned socket error */
+        if (ret == SOCKET_ERROR_E)
+            return ret;
         if (ret != 0)
             return LENGTH_ERROR;
     }