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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Imagination Technologies | Graphics DDK | 1.18 RTM2, 23.2 RTM2, 24.2 RTM2, 25.1 RTM2 – ≤ 25.3 RTM, 26.1 RTM1 | 26.1 RTM2 |
Advisories 1
- WID-SEC-2026-3251 Android Patchday September 2026: Mehrere Schwachstellen BSI CERT-Bund (WID) · Oct 25, 2026