Linux Kernel up to 6.0.2 af_unix unix_gc privilege escalation

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.5$0-$5k0.00

Summaryinfo

A vulnerability was found in Linux Kernel up to 5.4.219/5.10.149/5.15.74/5.19.16/6.0.2. It has been declared as critical. This affects the function unix_gc of the component af_unix. The manipulation results in an unknown weakness. This vulnerability is reported as CVE-2022-50234. No exploit exists. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Linux Kernel up to 5.4.219/5.10.149/5.15.74/5.19.16/6.0.2. It has been classified as critical. Affected is the function unix_gc of the component af_unix. The impact remains unknown. CVE summarizes:

In the Linux kernel, the following vulnerability has been resolved: io_uring/af_unix: defer registered files gc to io_uring release Instead of putting io_uring's registered files in unix_gc() we want it to be done by io_uring itself. The trick here is to consider io_uring registered files for cycle detection but not actually putting them down. Because io_uring can't register other ring instances, this will remove all refs to the ring file triggering the ->release path and clean up with io_ring_ctx_free(). [axboe: add kerneldoc comment to skb, fold in skb leak fix]

The advisory is shared for download at git.kernel.org. This vulnerability is traded as CVE-2022-50234 since 06/18/2025. There are known technical details, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 265161 (Linux Distros Unpatched Vulnerability : CVE-2022-50234), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 5.4.220, 5.10.150, 5.15.75, 5.19.17 or 6.0.3 eliminates this vulnerability. Applying the patch 04df9719df1865f6770af9bc7880874af0e594b2/c378c479c5175833bb22ff71974cda47d7b05401/813d8fe5d30388f73a21d3a2bf46b0a1fd72498c/b4293c01ee0d0ecdd3cb5801e13f62271144667a/75e94c7e8859e58aadc15a98cc9704edff47d4f2/0091bfc81741b8d3aeb3b7ab8636f911b2de6e80 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 (265161) and CERT Bund (WID-SEC-2025-2053). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Affected

  • Debian Linux
  • Amazon Linux 2
  • Red Hat Enterprise Linux
  • Ubuntu Linux
  • SUSE Linux
  • Oracle Linux
  • IBM QRadar SIEM
  • SUSE openSUSE
  • Open Source Linux Kernel
  • RESF Rocky Linux
  • Dell Secure Connect Gateway
  • F5 F5OS

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.6
VulDB Meta Temp Score: 6.5

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔒

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

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

Exploitinginfo

Class: Privilege escalation
CWE: Unknown
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Nessus ID: 265161
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2022-50234

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 5.4.220/5.10.150/5.15.75/5.19.17/6.0.3
Patch: 04df9719df1865f6770af9bc7880874af0e594b2/c378c479c5175833bb22ff71974cda47d7b05401/813d8fe5d30388f73a21d3a2bf46b0a1fd72498c/b4293c01ee0d0ecdd3cb5801e13f62271144667a/75e94c7e8859e58aadc15a98cc9704edff47d4f2/0091bfc81741b8d3aeb3b7ab8636f911b2de6e80

Timelineinfo

06/18/2025 CVE reserved
09/15/2025 +89 days Advisory disclosed
09/15/2025 +0 days VulDB entry created
01/10/2026 +117 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2022-50234 (🔒)
GCVE (CVE): GCVE-0-2022-50234
GCVE (VulDB): GCVE-100-323952
CERT Bund: WID-SEC-2025-2053 - Linux Kernel: Mehrere Schwachstellen

Entryinfo

Created: 09/15/2025 16:44
Updated: 01/10/2026 07:42
Changes: 09/15/2025 16:44 (58), 09/16/2025 10:15 (7), 09/20/2025 15:11 (2), 11/24/2025 19:42 (11), 12/27/2025 20:44 (1), 01/10/2026 07:42 (1)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Do you want to use VulDB in your project?

Use the official API to access entries easily!