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No exploitation reportedFix available

CVE-2026-15466

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

No exploitation reported by the sources we read.

  • Published2026-10-30
  • WeaknessCWE-416

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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.

Timeline

dates in UTC
  1. 2026-10-3001:23CVE publishedCNA

Versions per branch

Products declared by the CNA1 product

As imaginationtech, the CNA that assigned this CVE, declared them in the CVE record; versions as written.

  • Imagination Technologies Graphics DDKother versions: unknown

    platforms: Linux, Android

    Affected
    • = 24.2 RTM2no fix statedcustom
    • ≥ 25.1 RTM2, ≤ 25.3 RTMno fix statedcustom
    • = 26.1 RTM2no fix statedcustom

    Not affected = 1.18 RTM2 · = 23.2 RTM2 · = 26.2 RTM

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2026-10-30

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • :unknown:Androidfrom SoCVersion:0 · fixed in SoCVersion:2026-11-05

Full record on NVD

Fix

No fix published by the sources we read yet. NVD record

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Published
2026-10-30
Last Modified
2026-11-05
NVD status
Deferred
GitHub Advisory
GHSA-57qq-gwf5-m8rv

Frequently asked questions

What is CVE-2026-15466?

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.

Is CVE-2026-15466 actively exploited?

Active exploitation of CVE-2026-15466 has not been confirmed. Its EPSS score was 0.2% on 2026-11-05, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-15466?

CVE-2026-15466 has a CVSS v3 base score of 7 (HIGH severity), with vector string CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.

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