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.
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.
Metrics
Affected Vendors & Products
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Advisories
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Fixes
Solution
No solution given by the vendor.
Workaround
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References
| Link | Providers |
|---|---|
| https://www.imaginationtech.com/gpu-driver-vulnerabilities/ |
|
History
Fri, 04 Sep 2026 02:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| 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. | |
| Title | GPU DDK - TOCTOU affecting psFWMemContext->uiPageCatBaseRegSet | |
| Weaknesses | CWE-367 | |
| References |
|
Projects
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MITRE
Status: PUBLISHED
Assigner: imaginationtech
Published:
Updated: 2026-09-04T01:53:55.981Z
Reserved: 2026-05-11T10:58:04.162Z
Link: CVE-2026-45197
Vulnrichment
No data.
NVD
Status : Received
Published: 2026-09-04T02:17:19.003
Modified: 2026-09-04T02:17:19.003
Link: CVE-2026-45197
Redhat
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OpenCVE Enrichment
Updated: 2026-09-04T04:00:09Z
Weaknesses