An out-of-bounds write issue was found in the VirGL virtual OpenGL renderer (virglrenderer). This flaw allows a malicious guest to create a specially crafted virgil resource and then issue a VIRTGPU_EXECBUFFER ioctl, leading to a denial of service or possible code execution.
https://security.gentoo.org/glsa/202210-05
https://lists.debian.org/debian-lts-announce/2022/12/msg00017.html