---
id: CVE-2026-98700
title: 'wifi: mac80211: set info->band for 802.3 encap offload frames'
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  wifi: mac80211: set info->band for 802.3 encap offload frames

  Unlike the 802.11 TX paths, ieee80211_8023_xmit() does not set
  info->band from the channel context on non…
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= 50ff477a8639fa1fbbeecb5a6f2f8b6c5557ecec <
    93c1b247224a32f546b616a8fe87b9bab20f0a7f
  - >-
    Linux >= 50ff477a8639fa1fbbeecb5a6f2f8b6c5557ecec <
    9cedbfde1450028f530e9af950f53491fcaebfeb
  - >-
    Linux >= 50ff477a8639fa1fbbeecb5a6f2f8b6c5557ecec <
    2d9c5525bbc1a548cdc9c4def3cd7fbfc7c66b5b
  - >-
    Linux >= 50ff477a8639fa1fbbeecb5a6f2f8b6c5557ecec <
    4febc02cd02f021f2b6d0768332be643ef14a12d
  - Linux 5.7
published: '2026-10-18'
updated: '2026-10-18'
sourceUpdated: '2026-10-18T15:46:30.043Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-98700'
references:
  - url: 'https://git.kernel.org/stable/c/93c1b247224a32f546b616a8fe87b9bab20f0a7f'
  - url: 'https://git.kernel.org/stable/c/9cedbfde1450028f530e9af950f53491fcaebfeb'
  - url: 'https://git.kernel.org/stable/c/2d9c5525bbc1a548cdc9c4def3cd7fbfc7c66b5b'
  - url: 'https://git.kernel.org/stable/c/4febc02cd02f021f2b6d0768332be643ef14a12d'
tags:
  - cve.org
ingestedAt: '2026-10-18T16:47:32.516Z'
---

## Overview

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

wifi: mac80211: set info->band for 802.3 encap offload frames

Unlike the 802.11 TX paths, ieee80211_8023_xmit() does not set
info->band from the channel context on non-MLD interfaces. It stays at
0, so ieee80211_get_tx_rates() uses the wrong band for these frames.

Set it the same way as ieee80211_build_hdr(): drop the frame if there is
no channel context, and leave the band at 0 on MLD interfaces.

## Affected

- `Linux >= 50ff477a8639fa1fbbeecb5a6f2f8b6c5557ecec < 93c1b247224a32f546b616a8fe87b9bab20f0a7f`
- `Linux >= 50ff477a8639fa1fbbeecb5a6f2f8b6c5557ecec < 9cedbfde1450028f530e9af950f53491fcaebfeb`
- `Linux >= 50ff477a8639fa1fbbeecb5a6f2f8b6c5557ecec < 2d9c5525bbc1a548cdc9c4def3cd7fbfc7c66b5b`
- `Linux >= 50ff477a8639fa1fbbeecb5a6f2f8b6c5557ecec < 4febc02cd02f021f2b6d0768332be643ef14a12d`
- `Linux 5.7`

## Remediation

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