Linux Kernel up to 6.1.159/6.6.119/6.12.63/6.18.3 set_sync use after free

CVSS Meta Temp Score
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CTI Interest Score
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6.6$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in Linux Kernel up to 6.1.159/6.6.119/6.12.63/6.18.3. This affects the function set_sync. Performing a manipulation results in use after free. This vulnerability is cataloged as CVE-2025-71081. There is no exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, was found in Linux Kernel up to 6.1.159/6.6.119/6.12.63/6.18.3. This affects the function set_sync. The manipulation with an unknown input leads to a use after free vulnerability. CWE is classifying the issue as CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: ASoC: stm32: sai: fix OF node leak on probe The reference taken to the sync provider OF node when probing the platform device is currently only dropped if the set_sync() callback fails during DAI probe. Make sure to drop the reference on platform probe failures (e.g. probe deferral) and on driver unbind. This also avoids a potential use-after-free in case the DAI is ever reprobed without first rebinding the platform driver.

The advisory is shared at git.kernel.org. This vulnerability is uniquely identified as CVE-2025-71081 since 01/13/2026. The exploitability is told 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 03/31/2026).

The vulnerability scanner Nessus provides a plugin with the ID 283668 (Linux Distros Unpatched Vulnerability : CVE-2025-71081), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 6.1.160, 6.6.120, 6.12.64, 6.18.4 or 6.19-rc1 eliminates this vulnerability. Applying the patch acda653169e180b1d860dbb6bc5aceb105858394/4054a3597d047f3fe87864ef87f399b5d523e6c0/bae74771fc5d3b2a9cf6f5aa64596083d032c4a3/3752afcc6d80d5525e236e329895ba2cb93bcb26/23261f0de09427367e99f39f588e31e2856a690e 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 vulnerability database at Tenable (283668). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.8
VulDB Meta Temp Score: 6.6

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

NVD Base Score: 5.5
NVD Vector: 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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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: Partially
Local: Yes
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 283668
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2025-71081

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 6.1.160/6.6.120/6.12.64/6.18.4/6.19-rc1
Patch: acda653169e180b1d860dbb6bc5aceb105858394/4054a3597d047f3fe87864ef87f399b5d523e6c0/bae74771fc5d3b2a9cf6f5aa64596083d032c4a3/3752afcc6d80d5525e236e329895ba2cb93bcb26/23261f0de09427367e99f39f588e31e2856a690e

Timelineinfo

01/13/2026 Advisory disclosed
01/13/2026 +0 days CVE reserved
01/13/2026 +0 days VulDB entry created
03/31/2026 +77 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2025-71081 (🔒)
GCVE (CVE): GCVE-0-2025-71081
GCVE (VulDB): GCVE-100-340689

Entryinfo

Created: 01/13/2026 18:02
Updated: 03/31/2026 16:55
Changes: 01/13/2026 18:02 (58), 01/15/2026 00:30 (2), 03/25/2026 20:55 (11), 03/31/2026 16:55 (1)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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