---
id: CVE-2025-68255
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  staging: rtl8723bs: fix stack buffer overflow in OnAssocReq IE parsing

  The Supported Rates IE length from an incoming Association Request frame
  was used directly as th…
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  staging: rtl8723bs: fix stack buffer overflow in OnAssocReq IE parsing

  The Supported Rates IE length from an incoming Association Request frame
  was used directly as th…
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: '2025-12-16'
updated: '2026-10-14'
sourceUpdated: '2026-10-14T13:10:00.187'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-68255'
references:
  - url: 'https://git.kernel.org/stable/c/25411f5fcf5743131158f337c99c2bbf3f8477f5'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/34620eb602aa432f090b2b784ee5c5070fb16cf9'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/4445adedae770037078803d1ce41f9e88a1944b6'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/49b7806851f93fd342838c93f4f765e0cc5029b0'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/61871c83259a511980ec2664964cecc69005398b'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/6ef0e1c10455927867cac8f0ed6b49f328f8cf95'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/d129dc2a5d59b4d9cd2cc0b6eeb04df8461199f0'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/e841d8ea722315b781c4fc5bf4f7670fbca88875'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
tags:
  - nvd
epss: 0.00369
epssPercentile: 0.28907
ingestedAt: '2026-10-14T13:30:58.468Z'
---

## Overview

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

staging: rtl8723bs: fix stack buffer overflow in OnAssocReq IE parsing

The Supported Rates IE length from an incoming Association Request frame
was used directly as the memcpy() length when copying into a fixed-size
16-byte stack buffer (supportRate). A malicious station can advertise an
IE length larger than 16 bytes, causing a stack buffer overflow.

Clamp ie_len to the buffer size before copying the Supported Rates IE,
and correct the bounds check when merging Extended Supported Rates to
prevent a second potential overflow.

This prevents kernel stack corruption triggered by malformed association
requests.

## Remediation

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