Linux Kernel up to 6.16-rc2 net /proc/net/atm/lec dev_put dev_lec use after free

CVSS Meta Temp Score
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CTI Interest Score
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7.7$0-$5k0.00

Summaryinfo

A vulnerability labeled as critical has been found in Linux Kernel up to 6.16-rc2. This issue affects the function dev_put of the file /proc/net/atm/lec of the component net. Such manipulation of the argument dev_lec leads to use after free. This vulnerability is uniquely identified as CVE-2025-38180. No exploit exists. The affected component should be upgraded.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Linux Kernel up to 6.16-rc2. Affected by this issue is the function dev_put of the file /proc/net/atm/lec of the component net. The manipulation of the argument dev_lec with an unknown input leads to a use after free vulnerability. Using CWE to declare the problem leads to CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. Impacted is confidentiality, integrity, and availability. CVE summarizes:

In the Linux kernel, the following vulnerability has been resolved: net: atm: fix /proc/net/atm/lec handling /proc/net/atm/lec must ensure safety against dev_lec[] changes. It appears it had dev_put() calls without prior dev_hold(), leading to imbalance and UAF.

The advisory is shared for download at git.kernel.org. This vulnerability is handled as CVE-2025-38180 since 04/16/2025. The exploitation is known to be easy. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 12/19/2025).

The vulnerability scanner Nessus provides a plugin with the ID 249177 (Debian dsa-5973 : affs-modules-6.1.0-37-4kc-malta-di - security update), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 5.4.295, 5.10.239, 5.15.186, 6.1.142, 6.6.95, 6.12.35, 6.15.4 or 6.16-rc3 eliminates this vulnerability. Applying the patch fcfccf56f4eba7d00aa2d33c7bb1b33083237742/f2d1443b18806640abdb530e88009af7be2588e7/ca3829c18c8d0ceb656605d3bff6bb3dfb078589/e612c4b014f5808fbc6beae21f5ccaca5e76a2f8/a5e3a144268899f1a8c445c8a3bfa15873ba85e8/5fe1b23a2f87f43aeeac51e08819cbc6fd808cbc/9b9aeb3ada44d8abea1e31e4446113f460848ae4/d03b79f459c7935cff830d98373474f440bd03ae 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 (249177), EUVD (EUVD-2025-20076) and CERT Bund (WID-SEC-2025-1465). 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
  • RESF Rocky Linux
  • Dell Avamar
  • Open Source Linux Kernel
  • Dell NetWorker
  • Dell Secure Connect Gateway

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.9
VulDB Meta Temp Score: 7.7

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

NVD Base Score: 7.8
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: 249177
Nessus Name: Debian dsa-5973 : affs-modules-6.1.0-37-4kc-malta-di - security update

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 5.4.295/5.10.239/5.15.186/6.1.142/6.6.95/6.12.35/6.15.4/6.16-rc3
Patch: fcfccf56f4eba7d00aa2d33c7bb1b33083237742/f2d1443b18806640abdb530e88009af7be2588e7/ca3829c18c8d0ceb656605d3bff6bb3dfb078589/e612c4b014f5808fbc6beae21f5ccaca5e76a2f8/a5e3a144268899f1a8c445c8a3bfa15873ba85e8/5fe1b23a2f87f43aeeac51e08819cbc6fd808cbc/9b9aeb3ada44d8abea1e31e4446113f460848ae4/d03b79f459c7935cff830d98373474f440bd03ae

Timelineinfo

04/16/2025 CVE reserved
07/04/2025 +79 days Advisory disclosed
07/04/2025 +0 days VulDB entry created
12/19/2025 +168 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2025-38180 (🔒)
GCVE (CVE): GCVE-0-2025-38180
GCVE (VulDB): GCVE-100-314912
EUVD: 🔒
CERT Bund: WID-SEC-2025-1465 - Linux Kernel: Mehrere Schwachstellen ermöglichen Denial of Service

Entryinfo

Created: 07/04/2025 16:18
Updated: 12/19/2025 03:25
Changes: 07/04/2025 16:18 (61), 07/04/2025 21:07 (1), 07/20/2025 15:46 (7), 08/13/2025 19:43 (2), 08/25/2025 14:20 (1), 09/02/2025 11:25 (1), 09/10/2025 16:16 (1), 09/19/2025 08:47 (1), 11/02/2025 23:42 (1), 12/08/2025 02:05 (1), 12/19/2025 03:25 (12)
Complete: 🔍
Cache ID: 216::103

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

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