Linux Kernel up to 6.12.34/6.15.3 netfilter __kvmalloc_node_noprof privilege escalation

CVSS Meta Temp Score
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CTI Interest Score
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6.5$0-$5k0.00

Summaryinfo

A vulnerability was found in Linux Kernel up to 6.12.34/6.15.3. It has been classified as problematic. Impacted is the function __kvmalloc_node_noprof of the component netfilter. This manipulation causes an unknown weakness. This vulnerability is registered as CVE-2025-38201. No exploit is available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Linux Kernel up to 6.12.34/6.15.3. It has been declared as problematic. Affected by this vulnerability is the function __kvmalloc_node_noprof of the component netfilter. The impact remains unknown. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: netfilter: nft_set_pipapo: clamp maximum map bucket size to INT_MAX Otherwise, it is possible to hit WARN_ON_ONCE in __kvmalloc_node_noprof() when resizing hashtable because __GFP_NOWARN is unset. Similar to: b541ba7d1f5a ("netfilter: conntrack: clamp maximum hashtable size to INT_MAX")

It is possible to read the advisory at git.kernel.org. This vulnerability is known as CVE-2025-38201 since 04/16/2025. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 246945 (Linux Distros Unpatched Vulnerability : CVE-2025-38201), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 6.12.35, 6.15.4 or 6.16-rc1 eliminates this vulnerability. Applying the patch 0ab3de047808f375a36cd345225572eb3366f3c6/d2768016f091f8a5264076b433fd7c3fabb6eb97/b85e3367a5716ed3662a4fe266525190d2af76df 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 (246945), EUVD (EUVD-2025-20055) and CERT Bund (WID-SEC-2025-1465). Be aware that VulDB is the high quality source for vulnerability data.

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: 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

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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: 🔒

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Nessus ID: 246945
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2025-38201

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 6.12.35/6.15.4/6.16-rc1
Patch: 0ab3de047808f375a36cd345225572eb3366f3c6/d2768016f091f8a5264076b433fd7c3fabb6eb97/b85e3367a5716ed3662a4fe266525190d2af76df

Timelineinfo

04/16/2025 CVE reserved
07/04/2025 +79 days Advisory disclosed
07/04/2025 +0 days VulDB entry created
12/13/2025 +162 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2025-38201 (🔒)
GCVE (CVE): GCVE-0-2025-38201
GCVE (VulDB): GCVE-100-314935
EUVD: 🔒
CERT Bund: WID-SEC-2025-1465 - Linux Kernel: Mehrere Schwachstellen ermöglichen Denial of Service

Entryinfo

Created: 07/04/2025 16:25
Updated: 12/13/2025 22:16
Changes: 07/04/2025 16:25 (57), 07/04/2025 20:37 (1), 07/20/2025 17:48 (7), 08/10/2025 06:45 (2), 08/25/2025 17:04 (1), 09/11/2025 05:53 (1), 09/21/2025 01:41 (1), 11/03/2025 00:43 (1), 11/18/2025 22:07 (17), 12/13/2025 22:16 (1)
Complete: 🔍
Cache ID: 216::103

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