int lookup_flags = 0;
int acc_mode = ACC_MODE(flags);
+ /*
+ * Clear out all open flags we don't know about so that we don't report
+ * them in fcntl(F_GETFD) or similar interfaces.
+ */
+ flags &= VALID_OPEN_FLAGS;
+
if (flags & (O_CREAT | __O_TMPFILE))
op->mode = (mode & S_IALLUGO) | S_IFREG;
else