A TOCTOU bug existed where a malicious driver could modify values in memory after firmware validation but before use.
Analysis
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Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | |||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Imagination Technologies | Graphics DDK | unknown |
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Tracking
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| Link | Providers |
|---|---|
| https://www.imaginationtech.com/gpu-driver-vulnerabilities/ |
|
Fri, 10 Jul 2026 21:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Kernel software installed and running inside a Host VM may post improper commands to the GPU Firmware to trigger a memory write outside the permitted range of memory for the host kernel. A TOCTOU bug existed where a malicious driver could modify values in memory after firmware validation but before use. | |
| Title | GPU DDK - rgxfw_hwperf_ufo() re-reads psCmdHeader->ui32CmdSize after initial check, TOCTOU | |
| Weaknesses | CWE-367 | |
| References |
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Subscriptions
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MITRE
Status: PUBLISHED
Assigner: imaginationtech
Published:
Updated: 2026-07-10T20:57:19.733Z
Reserved: 2026-05-11T10:58:04.163Z
Link: CVE-2026-45203
Vulnrichment
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NVD
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Redhat
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OpenCVE Enrichment
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