---
id: CVE-2026-93788
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  wifi: iwlwifi: acpi: validate WGDS table revision index

  Check tbl_rev bounds before BIT(tbl_rev) to avoid undefined shifts when
  firmware reports an invalid revision va…
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  wifi: iwlwifi: acpi: validate WGDS table revision index

  Check tbl_rev bounds before BIT(tbl_rev) to avoid undefined shifts when
  firmware reports an invalid revision va…
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <
    2fc98ab6fe8acabd13eb09dc17426a33cf9f27f7
  - >-
    Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <
    346a558491241cbe8fef82b3d8f62d1a6b6bf61f
  - >-
    Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <
    954e821f42aaca56073ca830c5fd4bcf1a89048c
  - Linux < 6.12.111
  - Linux < 6.18.53
  - Linux (all versions)
published: '2026-09-24'
updated: '2026-09-25'
sourceUpdated: '2026-09-25T13:17:19.393'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-93788'
references:
  - url: 'https://git.kernel.org/stable/c/2fc98ab6fe8acabd13eb09dc17426a33cf9f27f7'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/346a558491241cbe8fef82b3d8f62d1a6b6bf61f'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/954e821f42aaca56073ca830c5fd4bcf1a89048c'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
tags:
  - nvd
  - cve.org
ingestedAt: '2026-09-24T16:47:15.903Z'
epss: 0.00166
epssPercentile: 0.05189
---

## Overview

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

wifi: iwlwifi: acpi: validate WGDS table revision index

Check tbl_rev bounds before BIT(tbl_rev) to avoid undefined shifts when
firmware reports an invalid revision value.

## Remediation

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