From 6095a0fe409f5190fdf741b6b3ab02daa7e2e69c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?S=C3=A9bastien=20Helleu?= <flashcode@flashtux.org>
Date: Thu, 18 May 2023 11:08:08 +0200
Subject: [PATCH] alias: return NULL if alias or user arguments are NULL in
 function alias_replace_args

---
 src/plugins/alias/alias.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/plugins/alias/alias.c b/src/plugins/alias/alias.c
index 4971e3c6f..75dd5659b 100644
--- a/src/plugins/alias/alias.c
+++ b/src/plugins/alias/alias.c
@@ -227,6 +227,9 @@ alias_replace_args (const char *alias_args, const char *user_args)
     const char *start, *pos;
     int n, m, argc, length_res, args_count, offset;
 
+    if (!alias_args || !user_args)
+        return NULL;
+
     argv = weechat_string_split (user_args, " ", NULL,
                                  WEECHAT_STRING_SPLIT_STRIP_LEFT
                                  | WEECHAT_STRING_SPLIT_STRIP_RIGHT