From d46ebde52825d78e3a771c3afe3c837dd13d3039 Mon Sep 17 00:00:00 2001
From: Jacob Nevins <jacobn@chiark.greenend.org.uk>
Date: Thu, 2 Dec 2004 13:37:28 +0000
Subject: [PATCH] NULL a couple of members after freeing them in ssh_free(). In
 particular, should stop ssh_do_close() accessing freed ssh->channels when
 invoked later from ssh_free(). Spotted by Fred Sauer.

(Perhaps this is the cause of the crashes people have been reporting on
abnormal closures such as `Software caused connection abort'? I've not been
able to test this.)

[originally from svn r4946]
---
 ssh.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/ssh.c b/ssh.c
index e0facac1..8c552b1e 100644
--- a/ssh.c
+++ b/ssh.c
@@ -7235,12 +7235,14 @@ static void ssh_free(void *handle)
 	    sfree(c);
 	}
 	freetree234(ssh->channels);
+	ssh->channels = NULL;
     }
 
     if (ssh->rportfwds) {
 	while ((pf = delpos234(ssh->rportfwds, 0)) != NULL)
 	    sfree(pf);
 	freetree234(ssh->rportfwds);
+	ssh->rportfwds = NULL;
     }
     sfree(ssh->deferred_send_data);
     if (ssh->x11auth)