CVE-2025-68174

Kernel code execution via KFD teardown race

Published Dec 16, 2025 · Updated Dec 16, 2025

Use-after-free in Linux kernel AMD KFD 6.5 through 6.17.7 allows local users to execute code in the kernel via a teardown race. The kfd_processes_table entry is removed before deferred kfd_process_wq_release work finishes, so a partition switch can free kfd_node while that work still dereferences it. Exploitation requires local /dev/kfd access and an overlapping XCP partition switch on supported AMD GPU hardware; outcomes include a kernel crash or kernel-context code execution.

CVSS severity7.8
High
EPSS probability0.14%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Use-after-free in Linux kernel AMD KFD 6.5 through 6.17.7 allows local users to execute code in the kernel via a teardown race. The kfd_processes_table entry is removed before deferred kfd_process_wq_release work finishes, so a partition switch can free kfd_node while that work still dereferences it. Exploitation requires local /dev/kfd access and an overlapping XCP partition switch on supported AMD GPU hardware; outcomes include a kernel crash or kernel-context code execution.

The record

CVE
CVE-2025-68174
Published
Dec 16, 2025
Updated
Dec 16, 2025
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 16, 2025CVE publishedPublication date reported by the CVE source.
  2. Dec 16, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <45da20e00d5da842e17dfc633072b127504f0d0e
  2. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <536d80f660ec12058e461f4db387ea42bee9250d

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <45da20e00d5da842e17dfc633072b127504f0d0e; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <536d80f660ec12058e461f4db387ea42bee9250d

Published CVSS scores

7.8LinuxCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.8UbuntuCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1068Exploitation for Privilege Escalation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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