---
id: CVE-2026-80601
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  batman-adv: gw: acquire ethernet header only after skb realloc

  The pskb_may_pull() called by batadv_get_vid() could reallocate the buffer
  behind the skb
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  batman-adv: gw: acquire ethernet header only after skb realloc

  The pskb_may_pull() called by batadv_get_vid() could reallocate the buffer
  behind the skb. Variables whi…
severity: high
cvss: 8.8
cvssVector: 'CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'
published: '2026-08-28'
updated: '2026-08-29'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-80601'
references:
  - url: 'https://git.kernel.org/stable/c/2760b38222c8828b075802342fe3b91eb823d542'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/6c37f1166549c999ccd164b0cb6462d1ae68f8f6'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/77880a3be88d378d60cc1e8f8ec70430e2ed0518'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/916dac5f2944f63f07f7b501acbea6737dbbed0e'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/afac8096bde4948e3caa7e4dd733867cfbd3018e'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/b79884a5567bf788fb76c30832467cf6a56f3c0d'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/e3f4325e35dd6e76b80665f3510738ce34819753'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/e6b43acd34b219b807e65096ce207b087942779d'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
tags:
  - nvd
epss: 0.004
epssPercentile: 0.3157
ingestedAt: '2026-08-29T21:42:37.055Z'
---

## Overview

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

batman-adv: gw: acquire ethernet header only after skb realloc

The pskb_may_pull() called by batadv_get_vid() could reallocate the buffer
behind the skb. Variables which were pointing to the old buffer need to be
reassigned to avoid an use-after-free.

## Remediation

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