CVE-2026-15466

GPU DDK - Write UAF due to a race condition caused by insufficient locking in PVRSRVRGXCloseHWPerfClientStreamKM()

Published Oct 30, 2026 CVSS 3.1 · 7 High EPSS < 1% KEV · Not listed
Description
Software installed and run as a non-privileged user may conduct improper GPU system calls to cause race condition in hardware performance counters buffer’s destruction path leading to read and/or write UAF.



The race condition in the destruction path could lead to reference counter being decremented in non-atomical way allowing other code paths using a freed object to read and/or write kernel heap memory.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

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

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 7.0, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H'}

Type Values Removed Values Added
First Time appeared Imaginationtech
Imaginationtech graphics Ddk
Vendors & Products Imaginationtech
Imaginationtech graphics Ddk
Type Values Removed Values Added
Description Software installed and run as a non-privileged user may conduct improper GPU system calls to cause race condition in hardware performance counters buffer’s destruction path leading to read and/or write UAF. The race condition in the destruction path could lead to reference counter being decremented in non-atomical way allowing other code paths using a freed object to read and/or write kernel heap memory.
Title GPU DDK - Write UAF due to a race condition caused by insufficient locking in PVRSRVRGXCloseHWPerfClientStreamKM()
Weaknesses CWE-416
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
imaginationtech
Published
Updated
Nov 5, 2026, 9:38 PM
Reserved
Jul 10, 2026, 9:04 PM
Status
Deferred
Published
Oct 30, 2026, 2:17 AM
Modified
Nov 5, 2026, 10:17 PM