Linux Kernel up to 6.17.12/6.18.1 OPP dev_pm_opp_put use after free

CVSS Meta Temp Score
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CTI Interest Score
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7.6$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in Linux Kernel up to 6.17.12/6.18.1. This affects the function dev_pm_opp_put of the component OPP Handler. This manipulation causes use after free. This vulnerability appears as CVE-2025-68739. There is no available exploit. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in Linux Kernel up to 6.17.12/6.18.1. Affected by this vulnerability is the function dev_pm_opp_put of the component OPP Handler. The manipulation with an unknown input leads to a use after free vulnerability. The CWE definition for the vulnerability is CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: PM / devfreq: hisi: Fix potential UAF in OPP handling Ensure all required data is acquired before calling dev_pm_opp_put(opp) to maintain correct resource acquisition and release order.

The advisory is shared at git.kernel.org. This vulnerability is known as CVE-2025-68739 since 12/24/2025. The exploitation appears to be easy. Technical details are known, but no exploit is available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 01/03/2026).

The vulnerability scanner Nessus provides a plugin with the ID 279743 (Linux Distros Unpatched Vulnerability : CVE-2025-68739), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 6.17.13, 6.18.2 or 6.19-rc1 eliminates this vulnerability. Applying the patch efb028b07f7b2d141b91c2fab5276b601f0d0dbe/469b0b8ce08818f3e4f01d2fa8d0dadeab501e1f/26dd44a40096468396b6438985d8e44e0743f64c is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the databases at Tenable (279743) and CERT Bund (WID-SEC-2025-2929). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Affected

  • Open Source Linux Kernel

Productinfo

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Version

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.0
VulDB Meta Temp Score: 7.6

VulDB Base Score: 8.0
VulDB Temp Score: 7.6
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Use after free
CWE: CWE-416 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 279743
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2025-68739

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 6.17.13/6.18.2/6.19-rc1
Patch: efb028b07f7b2d141b91c2fab5276b601f0d0dbe/469b0b8ce08818f3e4f01d2fa8d0dadeab501e1f/26dd44a40096468396b6438985d8e44e0743f64c

Timelineinfo

12/24/2025 Advisory disclosed
12/24/2025 +0 days CVE reserved
12/24/2025 +0 days VulDB entry created
01/03/2026 +10 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2025-68739 (🔒)
GCVE (CVE): GCVE-0-2025-68739
GCVE (VulDB): GCVE-100-337933
CERT Bund: WID-SEC-2025-2929 - Linux Kernel: Mehrere Schwachstellen

Entryinfo

Created: 12/24/2025 14:14
Updated: 01/03/2026 09:46
Changes: 12/24/2025 14:14 (59), 12/29/2025 09:51 (2), 01/03/2026 09:46 (7)
Complete: 🔍
Cache ID: 216::103

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