From d847d0f996679c77741b85959988dd9e65d63b97 Mon Sep 17 00:00:00 2001
From: Albert S <mail@quitesimple.org>
Date: Sun, 14 Nov 2021 21:46:38 +0100
Subject: [PATCH] qssb_append_group_syscall_policy(): Make QSSB_SYSCGROUP_NONE
 an invalid group

---
 qssb.h | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/qssb.h b/qssb.h
index 9fdb241..132c846 100644
--- a/qssb.h
+++ b/qssb.h
@@ -840,6 +840,12 @@ int qssb_append_group_syscall_policy(struct qssb_policy *qssb_policy, unsigned i
 {
 	long syscalls[400] = { 0 };
 	size_t n = 0;
+
+	if(groupmask & QSSB_SYSCGROUP_NONE)
+	{
+		QSSB_LOG_ERROR("Error: 'None' is an illegal group name\n");
+		return -EINVAL;
+	}
 	get_group_syscalls(groupmask, syscalls, &n);
 	if(n == 0)
 	{