From ea40176bee6c0312b97e2030248033d1681db4e2 Mon Sep 17 00:00:00 2001
From: JacobBarthelmeh <jacob@wolfssl.com>
Date: Fri, 12 May 2023 09:52:01 -0700
Subject: [PATCH] check for socket errors on SendAlert

---
 src/internal.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/src/internal.c b/src/internal.c
index 26a3b4fbe..1af47563f 100644
--- a/src/internal.c
+++ b/src/internal.c
@@ -33327,7 +33327,14 @@ static int DoSessionTicket(WOLFSSL* ssl, const byte* input, word32* inOutIdx,
             if (ret != 0 || !ssl->options.dtlsStateful) {
                 int alertType = TranslateErrorToAlert(ret);
                 if (alertType != invalid_alert)
-                    SendAlert(ssl, alert_fatal, alertType);
+                if (alertType != invalid_alert) {
+                    int err;
+
+                    /* propogate socket errors to avoid re-calling send alert */
+                    err = SendAlert(ssl, alert_fatal, alertType);
+                    if (err == SOCKET_ERROR_E)
+                        ret = SOCKET_ERROR_E;
+                }
                 *inOutIdx += helloSz;
                 DtlsResetState(ssl);
                 if (DtlsIgnoreError(ret))