gstreamer: add gstpluginloader-win32 fix

gvsbuild/patches/gstreamer/gstpluginloader-win32-fix_use_after_free.patch

@@ -0,0 +1,33 @@
+From a6eb1de87df4dd1438421acb49057b9577c610da Mon Sep 17 00:00:00 2001
+From: Silvio Lazzeretti <[email protected]>
+Date: Thu, 23 Jan 2025 16:52:30 +0100
+Subject: [PATCH] gstpluginloader-win32: fix use after free in
+ find_helper_bin_location
+
+Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/8352>
+
+diff --git a/gst/gstpluginloader-win32.c b/gst/gstpluginloader-win32.c
+--- a/gst/gstpluginloader-win32.c
++++ b/gst/gstpluginloader-win32.c
+@@ -485,6 +485,7 @@ find_helper_bin_location (void)
+     if (plugin_subdir_depth < MAX_PATH_DEPTH) {
+       const char *filenamev[MAX_PATH_DEPTH + 5];
+       int i = 0, j;
++      gchar *helper_bin_location;
+
+       filenamev[i++] = relocated_libgstreamer;
+       for (j = 0; j < plugin_subdir_depth; j++)
+@@ -498,8 +499,9 @@ find_helper_bin_location (void)
+       GST_DEBUG ("constructing path to system plugin scanner using "
+           "plugin dir: \'%s\', plugin scanner dir: \'%s\'",
+           GST_PLUGIN_SUBDIR, GST_PLUGIN_SCANNER_SUBDIR);
++      helper_bin_location = g_build_filenamev ((char **) filenamev);
+       g_free (relocated_libgstreamer);
+-      return g_build_filenamev ((char **) filenamev);
++      return helper_bin_location;
+     } else {
+       GST_WARNING ("GST_PLUGIN_SUBDIR: \'%s\' has too many path segments",
+           GST_PLUGIN_SUBDIR);
+-- 
+GitLab
+

gvsbuild/projects/gstreamer.py

@@ -45,6 +45,9 @@ def __init__(self):
             archive_url="https://gstreamer.freedesktop.org/src/gstreamer/gstreamer-{version}.tar.xz",
             hash="093a379602a250d5cd33b88e723757c80198317efde33893edf3c87b6e53b907",
             dependencies=["meson", "ninja", "glib", "orc"],
+            patches=[
+                "gstpluginloader-win32-fix_use_after_free.patch",
+            ],
         )
 
         if self.opts.enable_gi: