From fded1fb9eb672f9946fafbb43bfe1e8121e812d9 Mon Sep 17 00:00:00 2001
From: Andreas Schneider <asn@cryptomilk.org>
Date: Wed, 12 Dec 2018 18:30:26 +0100
Subject: [PATCH] channels: Don't call ssh_channel_close() twice

Signed-off-by: Andreas Schneider <asn@cryptomilk.org>
(cherry picked from commit 6cd8d4a24aa067d16611eb64bf306b7853748f34)
---
 src/channels.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/channels.c b/src/channels.c
index 0c0bd44c..b94016f1 100644
--- a/src/channels.c
+++ b/src/channels.c
@@ -1160,6 +1160,11 @@ int ssh_channel_close(ssh_channel channel)
         return SSH_ERROR;
     }
 
+    /* If the channel close has already been sent we're done here. */
+    if (channel->flags & SSH_CHANNEL_FLAG_CLOSED_LOCAL) {
+        return SSH_OK;
+    }
+
     session = channel->session;
 
     if (channel->local_eof == 0) {