---
id: CVE-2025-39970
title: 'i40e: fix input validation logic for action_meta'
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  i40e: fix input validation logic for action_meta

  Fix condition to check 'greater or equal' to prevent OOB dereference.
severity: high
cvss: 8.8
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H'
cvssSource: cna
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= e284fc280473bed23f2e1ed324e102a48f7d17e1 <
    a88c1b2746eccf00e2094b187945f0f1e990b400
  - >-
    Linux >= e284fc280473bed23f2e1ed324e102a48f7d17e1 <
    28465770ca3b694286ff9ed6dfd558413f57d98f
  - >-
    Linux >= e284fc280473bed23f2e1ed324e102a48f7d17e1 <
    f8c8e11825b24661596fa8db2f0981ba17ed0817
  - >-
    Linux >= e284fc280473bed23f2e1ed324e102a48f7d17e1 <
    461e0917eedcd159d87f3ea846754a1e07d7e78a
  - >-
    Linux >= e284fc280473bed23f2e1ed324e102a48f7d17e1 <
    3883e9702b6a4945e93b16c070f338a9f5b496f9
  - >-
    Linux >= e284fc280473bed23f2e1ed324e102a48f7d17e1 <
    3118f41d8fa57b005f53ec3db2ba5eab1d7ba12b
  - >-
    Linux >= e284fc280473bed23f2e1ed324e102a48f7d17e1 <
    560e1683410585fbd5df847f43433c4296f0d222
  - >-
    Linux >= e284fc280473bed23f2e1ed324e102a48f7d17e1 <
    9739d5830497812b0bdeaee356ddefbe60830b88
  - Linux 4.17
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-10-15T21:55:27.622516Z'
published: '2025-10-15'
updated: '2026-10-15'
sourceUpdated: '2026-10-15T22:02:34.702Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2025-39970'
references:
  - url: 'https://git.kernel.org/stable/c/a88c1b2746eccf00e2094b187945f0f1e990b400'
  - url: 'https://git.kernel.org/stable/c/28465770ca3b694286ff9ed6dfd558413f57d98f'
  - url: 'https://git.kernel.org/stable/c/f8c8e11825b24661596fa8db2f0981ba17ed0817'
  - url: 'https://git.kernel.org/stable/c/461e0917eedcd159d87f3ea846754a1e07d7e78a'
  - url: 'https://git.kernel.org/stable/c/3883e9702b6a4945e93b16c070f338a9f5b496f9'
  - url: 'https://git.kernel.org/stable/c/3118f41d8fa57b005f53ec3db2ba5eab1d7ba12b'
  - url: 'https://git.kernel.org/stable/c/560e1683410585fbd5df847f43433c4296f0d222'
  - url: 'https://git.kernel.org/stable/c/9739d5830497812b0bdeaee356ddefbe60830b88'
tags:
  - cve.org
epss: 0.00154
epssPercentile: 0.04522
ingestedAt: '2026-10-15T22:48:25.533Z'
---

## Overview

In the Linux kernel, the following vulnerability has been resolved:

i40e: fix input validation logic for action_meta

Fix condition to check 'greater or equal' to prevent OOB dereference.

## Affected

- `Linux >= e284fc280473bed23f2e1ed324e102a48f7d17e1 < a88c1b2746eccf00e2094b187945f0f1e990b400`
- `Linux >= e284fc280473bed23f2e1ed324e102a48f7d17e1 < 28465770ca3b694286ff9ed6dfd558413f57d98f`
- `Linux >= e284fc280473bed23f2e1ed324e102a48f7d17e1 < f8c8e11825b24661596fa8db2f0981ba17ed0817`
- `Linux >= e284fc280473bed23f2e1ed324e102a48f7d17e1 < 461e0917eedcd159d87f3ea846754a1e07d7e78a`
- `Linux >= e284fc280473bed23f2e1ed324e102a48f7d17e1 < 3883e9702b6a4945e93b16c070f338a9f5b496f9`
- `Linux >= e284fc280473bed23f2e1ed324e102a48f7d17e1 < 3118f41d8fa57b005f53ec3db2ba5eab1d7ba12b`
- `Linux >= e284fc280473bed23f2e1ed324e102a48f7d17e1 < 560e1683410585fbd5df847f43433c4296f0d222`
- `Linux >= e284fc280473bed23f2e1ed324e102a48f7d17e1 < 9739d5830497812b0bdeaee356ddefbe60830b88`
- `Linux 4.17`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.