Software installed and run as a non-privileged user may conduct improper GPU system calls to pass invalid log2 page size when allocating physical pages leading to OOB read and/or write due to improper validation of the said value. Such crafted log2 page size could lead to 4K pages being treated as higher order pages and allowing read and/or write access to the memory beyond 4K threshold.
History

Thu, 27 Aug 2026 18:00:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 7.8, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Fri, 21 Aug 2026 13:30:00 +0000

Type Values Removed Values Added
First Time appeared Imaginationtech
Imaginationtech graphics Ddk
Vendors & Products Imaginationtech
Imaginationtech graphics Ddk

Fri, 21 Aug 2026 04:15:00 +0000

Type Values Removed Values Added
Description Software installed and run as a non-privileged user may conduct improper GPU system calls to pass invalid log2 page size when allocating physical pages leading to OOB read and/or write due to improper validation of the said value. Such crafted log2 page size could lead to 4K pages being treated as higher order pages and allowing read and/or write access to the memory beyond 4K threshold.
Title GPU DDK - Incorrect page size validation in PhysmemNewRamBackedPMR could lead to OOB read and/or write of arbitrary physical memory
Weaknesses CWE-1284
References

cve-icon MITRE

Status: PUBLISHED

Assigner: imaginationtech

Published: 2026-08-21T04:01:04.964Z

Updated: 2026-08-27T17:49:05.654Z

Reserved: 2026-05-11T10:58:04.162Z

Link: CVE-2026-45201

cve-icon Vulnrichment

Updated: 2026-08-27T17:48:26.382Z

cve-icon NVD

Status : Deferred

Published: 2026-08-21T04:18:02.790

Modified: 2026-09-03T17:11:18.230

Link: CVE-2026-45201

cve-icon Redhat

No data.