CVE-2026-45197

Published: Sep 4, 2026Modified: Sep 4, 2026

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.

Related CWEs

CWE-367

Time-of-check Time-of-use (TOCTOU) Race Condition

The product checks the state of a resource before using that resource, but the resource's state can change between the check and the use in a way that invalidates the results of the check. This can cause the product to perform invalid actions when the resource is in an unexpected state.

References (1)

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

Source: 367425dc-4d06-4041-9650-c2dc6aaa27ce

Timeline

No history available yet.