1 files changed, 4 insertions, 0 deletions

diff --git a/src/firejail/x11.c b/src/firejail/x11.c
index 29111d5ff..48af39caf 100644
--- a/src/firejail/x11.c
+++ b/src/firejail/x11.c
@@ -54,7 +54,11 @@ static int x11_check_xephyr(void) {
 // check for X11 abstract sockets
 static int x11_abstract_sockets_present(void) {
         char *path;
+
+        EUID_ROOT(); // grsecurity fix
         FILE *fp = fopen("/proc/net/unix", "r");
+        EUID_USER();
+
         if (!fp)
                 errExit("fopen");