GPU DDK - TOCTOU affecting psFWMemContext->uiPageCatBaseRegSet
Summary
| CVE | CVE-2026-45197 |
|---|---|
| State | PUBLISHED |
| Assigner | imaginationtech |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-09-04 02:17:19 UTC |
| Updated | 2026-09-04 02:17:19 UTC |
| Description | Kernel software installed and running inside a Guest VM may post improper commands to the GPU Firmware to trigger a read and/or write data outside the Guest's virtualised GPU memory. The firmware uses data provided by the Guest VM to set up accesses to memory. It validated this before use, but a TOCTOU bug was present which allowed the earlier check results to be invalidated. |
Risk And Classification
Problem Types: CWE-367 | CWE-367 CWE-367: Time-of-check Time-of-use (TOCTOU) Race Condition
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Imagination Technologies | Graphics DDK | affected 1.18 RTM2 custom | Linux, Android |
| CNA | Imagination Technologies | Graphics DDK | affected 23.2 RTM2 custom | Linux, Android |
| CNA | Imagination Technologies | Graphics DDK | affected 24.2 RTM2 custom | Linux, Android |
| CNA | Imagination Technologies | Graphics DDK | affected 25.1 RTM2 25.3 RTM custom | Linux, Android |
| CNA | Imagination Technologies | Graphics DDK | affected 26.1 RTM1 custom | Linux, Android |
| CNA | Imagination Technologies | Graphics DDK | unaffected 26.1 RTM2 custom | Linux, Android |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| www.imaginationtech.com/gpu-driver-vulnerabilities | 367425dc-4d06-4041-9650-c2dc6aaa27ce | www.imaginationtech.com | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.