Non-Privileged GPU Calls Corrupt Kernel Heap Memory

CVE-2026-22164 represents a critical privilege escalation vector where non-privileged user processes can exploit GPU system calls to corrupt kernel heap memory. This vulnerability is particularly concerning because it requires no special permissions to trigger—any unprivileged user can instantiate resources of specific types and pass carefully crafted parameters to the GPU interface. The affected population includes any organization running systems where untrusted users have local access or where applications allow GPU resource allocation to user-level processes. The kernel heap corruption can lead to arbitrary code execution with kernel privileges, making this a severe security boundary violation despite its 7.5 CVSS score.

While this CVE does not map directly to MITRE ATT&CK techniques, Casky's 754 security skills leverage Claude's extended reasoning to detect the behavioral precursors and exploitation patterns. A practitioner using Casky would identify suspicious GPU resource creation patterns, abnormal system call sequences targeting GPU drivers, and indicators of heap manipulation attempts—correlating these across syscall monitoring, GPU driver logs, and memory access patterns. The platform would surface findings related to T1548 (Abuse Elevation Control Mechanism) dynamics, even though not explicitly mapped here, by detecting the privilege escalation chain from unprivileged user to kernel execution. Practitioners would see alerts on resource type instantiation anomalies and parameter validation bypass attempts before kernel corruption occurs, enabling prevention rather than incident response.