File ioemu-qcow2-memory-leak-fix.patch of Package xen

--- xen/tools/ioemu-remote/block-qcow2.c
+++ xen/tools/ioemu-remote/block-qcow2.c
@@ -1661,6 +1680,7 @@ static int qcow_snapshot_create(BlockDri
     if (!snapshots1)
         goto fail;
     memcpy(snapshots1, s->snapshots, s->nb_snapshots * sizeof(QCowSnapshot));
+    qemu_free(s->snapshots);
     s->snapshots = snapshots1;
     s->snapshots[s->nb_snapshots++] = *sn;