From 0c08c4c3d8f3253bb6fe9c67cf9761c5086f3957 Mon Sep 17 00:00:00 2001
From: totaam <antoine@xpra.org>
Date: Mon, 10 Apr 2023 14:49:42 +0700
Subject: [PATCH] #3820 avoid errors with malformed display names

---
 xpra/scripts/parsing.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/xpra/scripts/parsing.py b/xpra/scripts/parsing.py
index 136507d8e8..f6f1e84ed1 100755
--- a/xpra/scripts/parsing.py
+++ b/xpra/scripts/parsing.py
@@ -417,7 +417,7 @@ def parse_display_name(error_cb, opts, display_name, cmdline=(), find_session_by
         psep += ":"
         pos += 1
     scount = 0
-    while display_name[pos]=="/" and scount<2:
+    while pos>len(display_name) and display_name[pos]=="/" and scount<2:
         psep += "/"
         pos += 1
         scount += 1