From cd8c16e995ceebdbbf6408b3a5754eadc22021ad Mon Sep 17 00:00:00 2001
From: Alexander Naumov <alexander_naumov@opensuse.org>
Date: Sun, 22 Jan 2023 22:11:40 +0200
Subject: NULL Pointer Dereference fix

Signed-off-by: Alexander Naumov <alexander_naumov@opensuse.org>
---
 src/screen.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/screen.c b/src/screen.c
index 8bce303..294d00d 100644
--- a/src/screen.c
+++ b/src/screen.c
@@ -514,7 +514,7 @@ int main(int ac, char** av)
   logreopen_register(lf_secreopen);
 
   av0 = *av;   /* if this is a login screen, assume -RR */
-  if (*av0 == '-') {
+  if (av0 && *av0 == '-') {
     rflag = 4;
 #ifdef MULTI
     xflag = 1;
-- 
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