From cc83b463cec56592b0da406cf0beba294b731e57 Mon Sep 17 00:00:00 2001
From: Andreas Schneider <asn@cryptomilk.org>
Date: Tue, 18 Sep 2018 10:19:29 +0200
Subject: [PATCH] sftp: Fix a possible null pointer dereference

CID 1395721

Signed-off-by: Andreas Schneider <asn@cryptomilk.org>
---
 src/sftp.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/src/sftp.c b/src/sftp.c
index 4b310acf..247e6b9c 100644
--- a/src/sftp.c
+++ b/src/sftp.c
@@ -163,10 +163,12 @@ error:
     if (sftp->channel != NULL) {
         ssh_channel_free(sftp->channel);
     }
-    if (sftp->read_packet->payload != NULL) {
-        ssh_buffer_free(sftp->read_packet->payload);
+    if (sftp->read_packet != NULL) {
+        if (sftp->read_packet->payload != NULL) {
+            ssh_buffer_free(sftp->read_packet->payload);
+        }
+        SAFE_FREE(sftp->read_packet);
     }
-    SAFE_FREE(sftp->read_packet);
     SAFE_FREE(sftp);
     return NULL;
 }