@@ -1385,6 +1385,18 @@ async_common:
QXLCookie *cookie = NULL;
QXLRect update = d->ram->update_area;
+ if (d->ram->update_surface > NUM_SURFACES) {
+ qxl_set_guest_bug(d, "QXL_IO_UPDATE_AREA: invalid surface id %d\n",
+ d->ram->update_surface);
+ return;
+ }
+ if (update.left >= update.right || update.top >= update.bottom) {
+ qxl_set_guest_bug(d,
+ "QXL_IO_UPDATE_AREA: invalid area (%ux%u)x(%ux%u)\n",
+ update.left, update.top, update.right, update.bottom);
+ return;
+ }
+
if (async == QXL_ASYNC) {
cookie = qxl_cookie_new(QXL_COOKIE_TYPE_IO,
QXL_IO_UPDATE_AREA_ASYNC);
Signed-off-by: Alon Levy <alevy@redhat.com> --- v9->v10 Use CONFIG_QXL_IO_MONITORS_CONFIG_ASYNC instead of -D directly, define is created in config-host.h so hw/qxl.[ch] is unchanged except for s/QXL_HAS_IO_MONITORS_CONFIG_ASYNC/CONFIG_QXL_IO_MONITORS_CONFIG_ASYNC (Blue Swirl) No other patches changed. Dropped the wrongly sent last patch. hw/qxl.c | 12 ++++++++++++ 1 file changed, 12 insertions(+)