Message ID | 20220408045252.2375896-2-kraxel@redhat.com (mailing list archive) |
---|---|
State | New, archived |
Headers | show |
Series | [PULL,1/2] display/qxl-render: fix race condition in qxl_cursor (CVE-2021-4207) | expand |
diff --git a/hw/display/qxl-render.c b/hw/display/qxl-render.c index d28849b12176..237ed293baae 100644 --- a/hw/display/qxl-render.c +++ b/hw/display/qxl-render.c @@ -266,7 +266,7 @@ static QEMUCursor *qxl_cursor(PCIQXLDevice *qxl, QXLCursor *cursor, } break; case SPICE_CURSOR_TYPE_ALPHA: - size = sizeof(uint32_t) * cursor->header.width * cursor->header.height; + size = sizeof(uint32_t) * c->width * c->height; qxl_unpack_chunks(c->data, size, qxl, &cursor->chunk, group_id); if (qxl->debug > 2) { cursor_print_ascii_art(c, "qxl/alpha");