From 192b5fe7a542c886e90e62488bdee4b0bf49bb92 Mon Sep 17 00:00:00 2001
From: George Baltz N3GB <GeoBaltz@gmail.com>
Date: Fri, 28 Jul 2023 08:13:03 -0400
Subject: [PATCH] Fix segfault on rigctl exit

If rigctl does a recovery close/open cycle, a freed buffer gets reused.
This can cause segfault or worse.
---
 src/rig.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/rig.c b/src/rig.c
index 98f765ba5..0529abae2 100644
--- a/src/rig.c
+++ b/src/rig.c
@@ -8112,6 +8112,7 @@ void *morse_data_handler(void *arg)
     }
 
     free(rig->state.fifo_morse);
+    rig->state.fifo_morse = NULL;
     pthread_exit(NULL);
     return NULL;
 }