---
id: CVE-2026-22982
title: 'net: mscc: ocelot: Fix crash when adding interface under a lag'
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  net: mscc: ocelot: Fix crash when adding interface under a lag

  Commit 15faa1f67ab4 ("lan966x: Fix crash when adding interface under a lag")
  fixed a similar issue in th…
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= 528d3f190c98c8f7d9581f68db4af021696727b2 <
    8767f238b0e6c3d0b295ac6dce9fbe6a99bd1b9d
  - >-
    Linux >= 528d3f190c98c8f7d9581f68db4af021696727b2 <
    b17818307446c5a8d925a39a792261dbfa930041
  - >-
    Linux >= 528d3f190c98c8f7d9581f68db4af021696727b2 <
    2985712dc76dfa670eb7fd607c09d4d48e5f5c6e
  - >-
    Linux >= 528d3f190c98c8f7d9581f68db4af021696727b2 <
    03fb1708b7d1e76aecebf767ad059c319845039f
  - >-
    Linux >= 528d3f190c98c8f7d9581f68db4af021696727b2 <
    f490af47bbee02441e356a1e0b86e3b3dd5120ff
  - >-
    Linux >= 528d3f190c98c8f7d9581f68db4af021696727b2 <
    34f3ff52cb9fa7dbf04f5c734fcc4cb6ed5d1a95
  - Linux 5.12
published: '2026-01-23'
updated: '2026-09-08'
sourceUpdated: '2026-09-08T08:44:29.279Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-22982'
references:
  - url: 'https://git.kernel.org/stable/c/8767f238b0e6c3d0b295ac6dce9fbe6a99bd1b9d'
  - url: 'https://git.kernel.org/stable/c/b17818307446c5a8d925a39a792261dbfa930041'
  - url: 'https://git.kernel.org/stable/c/2985712dc76dfa670eb7fd607c09d4d48e5f5c6e'
  - url: 'https://git.kernel.org/stable/c/03fb1708b7d1e76aecebf767ad059c319845039f'
  - url: 'https://git.kernel.org/stable/c/f490af47bbee02441e356a1e0b86e3b3dd5120ff'
  - url: 'https://git.kernel.org/stable/c/34f3ff52cb9fa7dbf04f5c734fcc4cb6ed5d1a95'
tags:
  - cve.org
epss: 0.00139
epssPercentile: 0.03627
ingestedAt: '2026-09-08T15:33:26.994Z'
---

## Overview

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

net: mscc: ocelot: Fix crash when adding interface under a lag

Commit 15faa1f67ab4 ("lan966x: Fix crash when adding interface under a lag")
fixed a similar issue in the lan966x driver caused by a NULL pointer dereference.
The ocelot_set_aggr_pgids() function in the ocelot driver has similar logic
and is susceptible to the same crash.

This issue specifically affects the ocelot_vsc7514.c frontend, which leaves
unused ports as NULL pointers. The felix_vsc9959.c frontend is unaffected as
it uses the DSA framework which registers all ports.

Fix this by checking if the port pointer is valid before accessing it.

## Affected

- `Linux >= 528d3f190c98c8f7d9581f68db4af021696727b2 < 8767f238b0e6c3d0b295ac6dce9fbe6a99bd1b9d`
- `Linux >= 528d3f190c98c8f7d9581f68db4af021696727b2 < b17818307446c5a8d925a39a792261dbfa930041`
- `Linux >= 528d3f190c98c8f7d9581f68db4af021696727b2 < 2985712dc76dfa670eb7fd607c09d4d48e5f5c6e`
- `Linux >= 528d3f190c98c8f7d9581f68db4af021696727b2 < 03fb1708b7d1e76aecebf767ad059c319845039f`
- `Linux >= 528d3f190c98c8f7d9581f68db4af021696727b2 < f490af47bbee02441e356a1e0b86e3b3dd5120ff`
- `Linux >= 528d3f190c98c8f7d9581f68db4af021696727b2 < 34f3ff52cb9fa7dbf04f5c734fcc4cb6ed5d1a95`
- `Linux 5.12`

## Remediation

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