Linux Kernel up to 6.12.90/6.18.32/7.0.9 bpf arena_alloc_pages allocation of resources

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CTI Interest Score
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6.5$0-$5k0.93

Summaryinfo

A vulnerability was found in Linux Kernel up to 6.12.90/6.18.32/7.0.9 and classified as critical. This impacts the function arena_alloc_pages of the component bpf. Executing a manipulation can lead to allocation of resources. This vulnerability is handled as CVE-2026-53031. There is not any exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Linux Kernel up to 6.12.90/6.18.32/7.0.9. It has been declared as critical. This vulnerability affects the function arena_alloc_pages of the component bpf. The manipulation with an unknown input leads to a allocation of resources vulnerability. The CWE definition for the vulnerability is CWE-770. The product allocates a reusable resource or group of resources on behalf of an actor without imposing any restrictions on the size or number of resources that can be allocated, in violation of the intended security policy for that actor. The impact remains unknown. CVE summarizes:

In the Linux kernel, the following vulnerability has been resolved: bpf: Validate node_id in arena_alloc_pages() arena_alloc_pages() accepts a plain int node_id and forwards it through the entire allocation chain without any bounds checking. Validate node_id before passing it down the allocation chain in arena_alloc_pages().

The advisory is available at git.kernel.org. This vulnerability was named CVE-2026-53031 since 06/09/2026. Technical details are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 323534 (Linux Distros Unpatched Vulnerability : CVE-2026-53031), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 6.12.91, 6.18.33 or 7.0.10 eliminates this vulnerability. Applying the patch 31d3b4b28e55835646d6829d60023f730dd34e85/e15900888c09480a4c632bc598f1c5bd39bed6d6/fb66e20130f95a93ffea1677252526a9e39170b2/2845989f2ebaf7848e4eccf9a779daf3156ea0a5 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 (323534) and CERT Bund (WID-SEC-2026-2077). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Affected

  • Debian Linux
  • Amazon Linux 2
  • Red Hat Enterprise Linux
  • Ubuntu Linux
  • SUSE Linux
  • SUSE openSUSE
  • Open Source Linux Kernel
  • RESF Rocky Linux
  • Oracle Linux

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: 6.6
VulDB Meta Temp Score: 6.5

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

CNA Base Score: 7.8
CNA Vector (Linux): 🔒

CVSSv2info

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

Exploitinginfo

Class: Allocation of resources
CWE: CWE-770 / CWE-400 / CWE-404
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: 323534
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2026-53031

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 6.12.91/6.18.33/7.0.10
Patch: 31d3b4b28e55835646d6829d60023f730dd34e85/e15900888c09480a4c632bc598f1c5bd39bed6d6/fb66e20130f95a93ffea1677252526a9e39170b2/2845989f2ebaf7848e4eccf9a779daf3156ea0a5

Timelineinfo

06/09/2026 CVE reserved
06/24/2026 +15 days Advisory disclosed
06/24/2026 +0 days VulDB entry created
07/18/2026 +24 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2026-53031 (🔒)
GCVE (CVE): GCVE-0-2026-53031
GCVE (VulDB): GCVE-100-373426
CERT Bund: WID-SEC-2026-2077 - Linux Kernel: Mehrere Schwachstellen

Entryinfo

Created: 06/24/2026 21:10
Updated: 07/18/2026 07:03
Changes: 06/24/2026 21:10 (59), 06/27/2026 10:05 (7), 06/29/2026 12:19 (11), 06/29/2026 17:53 (2), 07/18/2026 07:03 (1)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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