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  4. CVE 2026 15466 gpu ddk write uaf due to a race condition caused
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Back to active CVEs
Unknown severity · Source severity not reportedCVE-2026-15466

GPU DDK - Write UAF due to a race condition caused by insufficient locking in PVRSRVRGXCloseHWPerfClientStreamKM()CVE-2026-15466

Answer in brief

CVE-2026-15466 records a Unknown severity vulnerability in GPU DDK - Write UAF due to a race condition caused by insufficient locking in PVRSRVRGXCloseHWPerfClientStreamKM(). The current sources do not mark it as known exploited. The current feed maps Imagination Technologies/Graphics DDK (generic), Imagination Technologies/Graphics DDK (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Oct 30, 2026Updated Oct 30, 2026Source checked Oct 30, 2026First seen by HOL Oct 30, 2026Material review Oct 30, 2026
Upstream Advisory

Key facts

Risk
Unknown severitySource severity not reported
Exploitation
Not marked as known exploited
Affected software
2 mapped packages or products
Fix availability
Not reported

Why this deserves its current priority

A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Imagination Technologies/Graphics DDK (generic), Imagination Technologies/Graphics DDK (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Imagination Technologies/Graphics DDKgeneric24.2 RTM2 || >=25.1 RTM2 <=25.3 RTM || 26.1 RTM1Not reported
Imagination Technologies/Graphics DDKgeneric24.2 RTM2 || >=25.1 RTM2 <=25.3 RTM || 26.1 RTM2Not reported

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Imagination Technologies/Graphics DDK, Imagination Technologies/Graphics DDK.
  2. 2Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

  1. Published upstream

    Oct 30, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Oct 30, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Oct 30, 2026

Sources and claim methodology

  • Source referenceimaginationtech.com
Upstream source 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.

Quoted source text, attributed separately from HOL analysis.

Record context

Vulnerability class
Memory Corruption
EPSS
Not reported
CWE IDs
CWE-416
Source
CVE List V5
Source checked
Oct 30, 2026
References
1 linked source
Open source record