diff --git a/target/i386/kvm/tdx.c b/target/i386/kvm/tdx.c
index 4714c9d514..df46fce769 100644
--- a/target/i386/kvm/tdx.c
+++ b/target/i386/kvm/tdx.c
@@ -1585,6 +1585,11 @@ static void tdx_guest_init(Object *obj)
 
 static void tdx_guest_finalize(Object *obj)
 {
+    TdxGuest *tdx = TDX_GUEST(obj);
+
+    g_free(tdx->mrconfigid);
+    g_free(tdx->mrowner);
+    g_free(tdx->mrownerconfig);
 }
 
 static ResettableState *tdx_reset_state(Object *obj)