---
id: CVE-2026-23084
title: 'be2net: Fix NULL pointer dereference in be_cmd_get_mac_from_list'
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  be2net: Fix NULL pointer dereference in be_cmd_get_mac_from_list

  When the parameter pmac_id_valid argument of be_cmd_get_mac_from_list() is
  set to false, the driver ma…
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= 95046b927a54f461766f83a212c6a93bc5fd2e67 <
    4cba480c9b9a3861a515262225cb53a1f5978344
  - >-
    Linux >= 95046b927a54f461766f83a212c6a93bc5fd2e67 <
    92c6dc181a18e6e0ddb872ed35cb48a9274829e4
  - >-
    Linux >= 95046b927a54f461766f83a212c6a93bc5fd2e67 <
    6c3e00888dbec887125a08b51a705b9b163fcdd1
  - >-
    Linux >= 95046b927a54f461766f83a212c6a93bc5fd2e67 <
    e206fb415db36bad52bb90c08d46ce71ffbe8a80
  - >-
    Linux >= 95046b927a54f461766f83a212c6a93bc5fd2e67 <
    47ffb4dcffe336f4a7bd0f3284be7aadc6484698
  - >-
    Linux >= 95046b927a54f461766f83a212c6a93bc5fd2e67 <
    31410a01a86bcb98c798d01061abf1f789c4f75a
  - >-
    Linux >= 95046b927a54f461766f83a212c6a93bc5fd2e67 <
    8215794403d264739cc676668087512950b2ff31
  - Linux 3.12
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-06-10T20:41:28.786911Z'
published: '2026-02-04'
updated: '2026-09-08'
sourceUpdated: '2026-09-08T08:44:47.996Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-23084'
references:
  - url: 'https://git.kernel.org/stable/c/4cba480c9b9a3861a515262225cb53a1f5978344'
  - url: 'https://git.kernel.org/stable/c/92c6dc181a18e6e0ddb872ed35cb48a9274829e4'
  - url: 'https://git.kernel.org/stable/c/6c3e00888dbec887125a08b51a705b9b163fcdd1'
  - url: 'https://git.kernel.org/stable/c/e206fb415db36bad52bb90c08d46ce71ffbe8a80'
  - url: 'https://git.kernel.org/stable/c/47ffb4dcffe336f4a7bd0f3284be7aadc6484698'
  - url: 'https://git.kernel.org/stable/c/31410a01a86bcb98c798d01061abf1f789c4f75a'
  - url: 'https://git.kernel.org/stable/c/8215794403d264739cc676668087512950b2ff31'
tags:
  - cve.org
epss: 0.0013
epssPercentile: 0.02151
ingestedAt: '2026-09-08T15:33:26.994Z'
---

## Overview

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

be2net: Fix NULL pointer dereference in be_cmd_get_mac_from_list

When the parameter pmac_id_valid argument of be_cmd_get_mac_from_list() is
set to false, the driver may request the PMAC_ID from the firmware of the
network card, and this function will store that PMAC_ID at the provided
address pmac_id. This is the contract of this function.

However, there is a location within the driver where both
pmac_id_valid == false and pmac_id == NULL are being passed. This could
result in dereferencing a NULL pointer.

To resolve this issue, it is necessary to pass the address of a stub
variable to the function.

## Affected

- `Linux >= 95046b927a54f461766f83a212c6a93bc5fd2e67 < 4cba480c9b9a3861a515262225cb53a1f5978344`
- `Linux >= 95046b927a54f461766f83a212c6a93bc5fd2e67 < 92c6dc181a18e6e0ddb872ed35cb48a9274829e4`
- `Linux >= 95046b927a54f461766f83a212c6a93bc5fd2e67 < 6c3e00888dbec887125a08b51a705b9b163fcdd1`
- `Linux >= 95046b927a54f461766f83a212c6a93bc5fd2e67 < e206fb415db36bad52bb90c08d46ce71ffbe8a80`
- `Linux >= 95046b927a54f461766f83a212c6a93bc5fd2e67 < 47ffb4dcffe336f4a7bd0f3284be7aadc6484698`
- `Linux >= 95046b927a54f461766f83a212c6a93bc5fd2e67 < 31410a01a86bcb98c798d01061abf1f789c4f75a`
- `Linux >= 95046b927a54f461766f83a212c6a93bc5fd2e67 < 8215794403d264739cc676668087512950b2ff31`
- `Linux 3.12`

## Remediation

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