Software installed and run as a non-privileged user may conduct a sequence of improper GPU system calls causing use after free, which helps in facilitating unprivileged memory access from a shader code.

Triggering failure path in the MMU mapping logic by a malicious code could lead to incomplete cleanup of an internal driver state, allowing for future unauthorized access to the contents of the physical memory.

References

• https://nvd.nist.gov/vuln/detail/CVE-2026-7639
• https://www.imaginationtech.com/gpu-driver-vulnerabilities