A double-free vulnerability in vrend_renderer.c in virglrenderer through 0.8.1 allows attackers to cause a denial of service by triggering texture allocation failure, because vrend_renderer_resource_allocated_texture is not an appropriate place for a free.
https://lists.debian.org/debian-lts-announce/2022/12/msg00017.html
https://gitlab.freedesktop.org/virgl/virglrenderer/merge_requests/340