diff --git a/fs/proc/inode.c b/fs/proc/inode.c
index 6dcef08..49dfb2a 100644
--- a/fs/proc/inode.c
+++ b/fs/proc/inode.c
@@ -192,7 +192,7 @@
 {
 	struct inode * root_inode;
 
-	s->s_flags |= MS_NODIRATIME;
+	s->s_flags |= MS_NODIRATIME | MS_NOSUID | MS_NOEXEC;
 	s->s_blocksize = 1024;
 	s->s_blocksize_bits = 10;
 	s->s_magic = PROC_SUPER_MAGIC;