SDL: Fix NULL pointer dereference in SDL_GlobStorageDirectory

SDL Commits
1 
From fc6f97f1627c19e8345f5b483b96e2c185e5670f Mon Sep 17 00:00:00 2001
From: bleeqer <[EMAIL REDACTED]>
Date: Sun, 26 Oct 2025 00:25:54 -0400
Subject: [PATCH] Fix NULL pointer dereference in SDL_GlobStorageDirectory

---
 src/storage/generic/SDL_genericstorage.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/storage/generic/SDL_genericstorage.c b/src/storage/generic/SDL_genericstorage.c
index cc0804feacab7..a117edf5be8aa 100644
--- a/src/storage/generic/SDL_genericstorage.c
+++ b/src/storage/generic/SDL_genericstorage.c
@@ -79,7 +79,7 @@ static bool GENERIC_EnumerateStorageDirectory(void *userdata, const char *path,
 
     char *fullpath = GENERIC_INTERNAL_CreateFullPath((char *)userdata, path);
     if (fullpath) {
-        wrap_data.base_len = SDL_strlen((char *)userdata);
+        wrap_data.base_len = userdata ? SDL_strlen((char *)userdata) : 0;
         wrap_data.real_callback = callback;
         wrap_data.real_userdata = callback_userdata;