From b55d7f3b73fd303e089162b7ce1eda888777eba3 Mon Sep 17 00:00:00 2001
From: Andreas Schneider <asn@cryptomilk.org>
Date: Mon, 28 Oct 2019 11:47:55 +0100
Subject: [PATCH] SSH-01-006: Add missing NULL check for
 ssh_packet_get_current_crypto()

Fixes T193

Signed-off-by: Andreas Schneider <asn@cryptomilk.org>
Reviewed-by: Jakub Jelen <jjelen@redhat.com>
---
 src/packet_crypt.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/packet_crypt.c b/src/packet_crypt.c
index 727e4d4d..18df9dcb 100644
--- a/src/packet_crypt.c
+++ b/src/packet_crypt.c
@@ -103,6 +103,9 @@ int ssh_packet_decrypt(ssh_session session,
     }
 
     crypto = ssh_packet_get_current_crypto(session, SSH_DIRECTION_IN);
+    if (crypto == NULL) {
+        return SSH_ERROR;
+    }
     cipher = crypto->in_cipher;
 
     if (encrypted_size % cipher->blocksize != 0) {