---
id: CVE-2026-93791
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  wifi: iwlwifi: mvm: add a check on the tid coming from the firmware

  ba_notif->tid is a firmware-controlled u8 that is used directly
  as an array index into tid_data[] w…
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  wifi: iwlwifi: mvm: add a check on the tid coming from the firmware

  ba_notif->tid is a firmware-controlled u8 that is used directly
  as an array index into tid_data[] w…
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <
    0b5325a0771674f1d65618de7db3df9d49186a12
  - >-
    Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <
    59f64c2839022f41a7867b38f9e38c185ff39283
  - >-
    Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <
    0e4c0d83267261cf67ec9690856edf4a56bb7dfc
  - Linux < 6.12.111
  - Linux < 6.18.53
  - Linux (all versions)
published: '2026-09-24'
updated: '2026-09-25'
sourceUpdated: '2026-09-25T13:17:19.700'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-93791'
references:
  - url: 'https://git.kernel.org/stable/c/0b5325a0771674f1d65618de7db3df9d49186a12'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/0e4c0d83267261cf67ec9690856edf4a56bb7dfc'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/59f64c2839022f41a7867b38f9e38c185ff39283'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
tags:
  - nvd
  - cve.org
ingestedAt: '2026-09-24T16:47:15.902Z'
epss: 0.00166
epssPercentile: 0.05188
---

## Overview

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

wifi: iwlwifi: mvm: add a check on the tid coming from the firmware

ba_notif->tid is a firmware-controlled u8 that is used directly
as an array index into tid_data[] without any validation. Add a
bounds check against IWL_MAX_TID_COUNT before dereferencing the
array.

## Remediation

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