diff --git a/drivers/platform/x86/intel/vsec_tpmi.c b/drivers/platform/x86/intel/vsec_tpmi.c
index 9dddf4e5863e..7fc6ff8d1040 100644
--- a/drivers/platform/x86/intel/vsec_tpmi.c
+++ b/drivers/platform/x86/intel/vsec_tpmi.c
@@ -46,6 +46,7 @@
  * provided by the Intel VSEC driver.
  */
 
+#include <linux/align.h>
 #include <linux/auxiliary_bus.h>
 #include <linux/bitfield.h>
 #include <linux/debugfs.h>
@@ -479,6 +480,9 @@ static ssize_t mem_write(struct file *file, const char __user *userbuf, size_t l
 	addr = array[2];
 	value = array[3];
 
+	if (!IS_ALIGNED(addr, sizeof(u32)))
+		return -EINVAL;
+
 	if (punit >= pfs->pfs_header.num_entries) {
 		ret = -EINVAL;
 		goto exit_write;