CVE-2026-45202: GPU DDK - Silent High-Order CMA Memory Leak & Double Free in `_FreeOSPages_Fast`

Severity: medium (CVSS 5.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.1% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-08-21 · updated 2026-10-18
Weakness: CWE-415

Description

Software installed and run as a non-privileged user may conduct GPU system calls which cause GPU memory leaks and possible kernel heap corruption. Scenario caused by memory free paths not maintaining state data of upgraded higher order allocations. This could cause memory leak or double free event.

Affected products

Imagination Technologies Graphics DDK: from 25.1 RTM2 through 25.3 RTM; 1.18 RTM2, 23.2 RTM2, 24.2 RTM2, 26.1 RTM1

References

https://www.imaginationtech.com/gpu-driver-vulnerabilities/

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