CVE-2026-53031

bpf: Validate node_id in arena_alloc_pages()

HIGH
7.8
CVSS Score
Published: June 24, 2026 at 04:29 PM UTC
Updated: October 19, 2026 at 08:18 PM UTC
1 product affected across 1 vendorLinux Kernel

Using Linux by Linux?

Get instant alerts when new vulnerabilities affect Linux - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Severity
HIGH7.8
Exploit prediction
EPSS 0.1%
SSVC
No known exploit

Description

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().

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

6.13 ≤ v < 6.18.336.19 ≤ v < 7.0.106.9 ≤ v < 6.12.91317460317a02a1af512697e6e964298dedd8a1636.9
Vendor states this is fixed in 2845989f2ebaf7848e4eccf9a779daf3156ea0a5 (fixed)
Vendor states this is fixed in 31d3b4b28e55835646d6829d60023f730dd34e85 (fixed)
Vendor states this is fixed in e15900888c09480a4c632bc598f1c5bd39bed6d6 (fixed)
Vendor states this is fixed in fb66e20130f95a93ffea1677252526a9e39170b2 (fixed)
Vendor states this is fixed in 6.12.91 (unaffected)
Vendor states this is fixed in 6.18.33 (unaffected)
Vendor states this is fixed in 6.9 (unaffected)
Vendor states this is fixed in 7.0.10 (unaffected)
Vendor states this is fixed in 7.1 (unaffected)

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.8HIGHLinux
Vector?

Quick Info

StatusMODIFIED
CWE
NVD-CWE-noinfoCWE-20

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Free plan, no card