diff --git a/crypto/block-luks.c b/crypto/block-luks.c
index 6ef9a89..f22bc63 100644
--- a/crypto/block-luks.c
+++ b/crypto/block-luks.c
@@ -572,6 +572,13 @@
         return -1;
     }
 
+    if (luks->header.payload_offset_sector <
+        DIV_ROUND_UP(QCRYPTO_BLOCK_LUKS_KEY_SLOT_OFFSET,
+                     QCRYPTO_BLOCK_LUKS_SECTOR_SIZE)) {
+        error_setg(errp, "LUKS payload is overlapping with the header");
+        return -1;
+    }
+
     /* Check all keyslots for corruption  */
     for (i = 0 ; i < QCRYPTO_BLOCK_LUKS_NUM_KEY_SLOTS ; i++) {