From 8154e240279ac2c54500270eb7d6f39354eb5156 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Oliver=20St=C3=B6neberg?= <oliverst@online.de>
Date: Mon, 16 May 2011 06:45:11 -0700
Subject: [PATCH] channel: Fixed potential use-after-free in
 ssh_channel_get_exit_status().

If ssh_channel_get_exit_status() is called more than once and the
connection closed.
(cherry picked from commit 4e153aed8a943b636135b424e052fc69392ad87c)
---
 src/channels.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/channels.c b/src/channels.c
index cf4b468d..1b652e95 100644
--- a/src/channels.c
+++ b/src/channels.c
@@ -2495,7 +2495,7 @@ int ssh_channel_get_exit_status(ssh_channel channel) {
     return -1;
   }
 
-  while (channel->remote_eof == 0 || channel->exit_status == -1) {
+  while ((channel->remote_eof == 0 || channel->exit_status == -1) && channel->session->alive) {
     /* Parse every incoming packet */
     if (ssh_handle_packets(channel->session,-1) != SSH_OK) {
       return -1;