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#See: https://bkhome.org/news/202012/kernel-510-lockdown-success.html
diff -Naur linux-5.10/include/uapi/linux/capability.h linux-5.10P1/include/uapi/linux/capability.h
--- linux-5.10/include/uapi/linux/capability.h	2020-12-07 06:25:12.000000000 +0800
+++ linux-5.10P1/include/uapi/linux/capability.h	2020-12-14 11:03:39.127180439 +0800
@@ -417,7 +417,9 @@
  #define CAP_CHECKPOINT_RESTORE	40
 -#define CAP_LAST_CAP         CAP_CHECKPOINT_RESTORE
+#define CAP_SYS_MOUNT		41
+
+#define CAP_LAST_CAP         CAP_SYS_MOUNT
  #define cap_valid(x) ((x) >= 0 && (x) <= CAP_LAST_CAP)
 diff -Naur linux-5.10/security/selinux/include/classmap.h linux-5.10P1/security/selinux/include/classmap.h
--- linux-5.10/security/selinux/include/classmap.h	2020-12-07 06:25:12.000000000 +0800
+++ linux-5.10P1/security/selinux/include/classmap.h	2020-12-14 11:09:33.393857376 +0800
@@ -28,9 +28,9 @@
  #define COMMON_CAP2_PERMS  "mac_override", "mac_admin", "syslog", \
 		"wake_alarm", "block_suspend", "audit_read", "perfmon", "bpf", \
-		"checkpoint_restore"
+		"checkpoint_restore", "sys_mount"
 -#if CAP_LAST_CAP > CAP_CHECKPOINT_RESTORE
+#if CAP_LAST_CAP > CAP_SYS_MOUNT
 #error New capability defined, please update COMMON_CAP2_PERMS.
 #endif