diff --git a/kernel/kernel/kmalloc.cpp b/kernel/kernel/kmalloc.cpp
index 3ac48acf..e20cc5af 100644
--- a/kernel/kernel/kmalloc.cpp
+++ b/kernel/kernel/kmalloc.cpp
@@ -137,6 +137,9 @@ void* kmalloc(size_t size)
 
 void kfree(void* addr)
 {
+	if (addr == nullptr)
+		return;
+
 	// TODO: use binary search etc.
 
 	size_t node_index = -1;