diff --git a/kernel/kpm/super_access.c b/kernel/kpm/super_access.c
index 9c0d541d..7d5cf935 100644
--- a/kernel/kpm/super_access.c
+++ b/kernel/kpm/super_access.c
@@ -165,8 +165,10 @@ DYNAMIC_STRUCT_BEGIN(task_struct)
 #ifdef CONFIG_CGROUPS
 	DEFINE_MEMBER(task_struct, cgroups)
 #endif
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 12, 0)
 #ifdef CONFIG_SECURITY
 	DEFINE_MEMBER(task_struct, security)
+#endif
 #endif
 	DEFINE_MEMBER(task_struct, thread)
 DYNAMIC_STRUCT_END(task_struct)
diff --git a/kernel/ksud.c b/kernel/ksud.c
index 2dc11c76..db494ad9 100644
--- a/kernel/ksud.c
+++ b/kernel/ksud.c
@@ -9,7 +9,7 @@
 #include <linux/file.h>
 #include <linux/fs.h>
 #include <linux/version.h>
-#if LINUX_VERSION_CODE < KERNEL_VERSION(5, 10, 0)
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 11, 0) && LINUX_VERSION_CODE < KERNEL_VERSION(5, 10, 0)
 #include <linux/sched/task.h>
 #endif
 #if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 4, 0)
diff --git a/kernel/pkg_observer.c b/kernel/pkg_observer.c
index 188d1dfd..4216c8aa 100644
--- a/kernel/pkg_observer.c
+++ b/kernel/pkg_observer.c
@@ -66,16 +66,16 @@ static int add_mark_on_inode(struct inode *inode, u32 mask,
 	if (!m)
 		return -ENOMEM;
 
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 17, 0)
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 18, 0)
 	fsnotify_init_mark(m, g);
 	m->mask = mask;
 	ret = fsnotify_add_inode_mark(m, inode, 0);
-#elif LINUX_VERSION_CODE >= KERNEL_VERSION(4, 11, 0)
+#elif LINUX_VERSION_CODE >= KERNEL_VERSION(4, 12, 0)
 	fsnotify_init_mark(m, g);
 	m->mask = mask;
 	ret = fsnotify_add_mark(m, inode, NULL, 0);
 #else
-	fsnotify_init_mark(m, g, m_free);
+	fsnotify_init_mark(m, m_free);
 	m->mask = mask;
 	ret = fsnotify_add_mark(m, g, inode, NULL, 0);
 #endif