From 7a5927568889f3f895af9964e06be9471f8a29b1 Mon Sep 17 00:00:00 2001
From: Takashi Kojo <kojo@wolfsssl.com>
Date: Sat, 16 Dec 2017 09:03:44 +0900
Subject: [PATCH] add arg check, wolfSSL_CTX_clear_options

---
 src/ssl.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/ssl.c b/src/ssl.c
index f18781668..49bb5eb24 100644
--- a/src/ssl.c
+++ b/src/ssl.c
@@ -11494,6 +11494,8 @@ int wolfSSL_set_compression(WOLFSSL* ssl)
     long wolfSSL_CTX_clear_options(WOLFSSL_CTX* ctx, long opt)
     {
         WOLFSSL_ENTER("SSL_CTX_clear_options");
+        if(ctx == NULL)
+            return BAD_FUNC_ARG;
         ctx->mask &= ~opt;
         return ctx->mask;
     }