From ece66a3c38c45e389982bf8d06ed7172fc9e2737 Mon Sep 17 00:00:00 2001
From: weishu <twsxtd@gmail.com>
Date: Mon, 16 Jan 2023 15:43:14 +0700
Subject: [PATCH] kernel: setgroup to root for su

---
 kernel/ksu.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/kernel/ksu.c b/kernel/ksu.c
index be685736..856de760 100644
--- a/kernel/ksu.c
+++ b/kernel/ksu.c
@@ -1,3 +1,4 @@
+#include <linux/cred.h>
 #include <linux/gfp.h>
 #include <linux/uidgid.h>
 #include <linux/cpu.h>
@@ -68,6 +69,9 @@ void escape_to_root()
 	current->seccomp.mode = 0;
 	current->seccomp.filter = NULL;
 
+	// setgroup to root
+	cred->group_info = &init_groups;
+
 	setup_selinux();
 }