xrdp: fix a crash in painter when invalid target is set

11 years ago · cff17f3038
parent 2c021f5fab
commit cff17f3038
1 changed files with 1 additions and 1 deletions
--- a/xrdp/xrdp_mm.c
+++ b/xrdp/xrdp_mm.c
@ -2439,7 +2439,7 @@ server_switch_os_surface(struct xrdp_mod *mod, int rdpindex)
    bi = xrdp_cache_get_os_bitmap(wm->cache, rdpindex);
-    if (bi != 0)
+    if ((bi != 0) && (bi->bitmap != 0))
    {
        //g_writeln("server_switch_os_surface: setting target_surface to rdpid %d", id);
        wm->target_surface = bi->bitmap;