---
id: CVE-2026-98602
title: >-
  Bluetooth: bnep: fix out-of-bounds reads on short RX/TX frames and control
  fallthrough
summary: >-
  In the Linux kernel, the following vulnerability has been resolved:


  Bluetooth: bnep: fix out-of-bounds reads on short RX/TX frames and control
  fallthrough


  Fix multiple out-of-bounds reads in Bluetooth BNEP frame processing:


  1. In bnep…
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <
    7af80ad2cebfe2f1879d6a39a1aaa061d9c4e1ca
  - >-
    Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <
    667aa703e11cdc237d169393bc6a5ea9acbb33c2
  - >-
    Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <
    3e605ff5932afe0970c2beca66f2f1ba2babe4dd
  - >-
    Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <
    035f9b1809861967e58ce652680d70ea1502058f
  - >-
    Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <
    1e7aebc188f889b56c3aaeb6133ef6d77022c887
  - >-
    Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <
    8f31031326994d1abfcc6ebb6927ef96e51fb9ff
  - >-
    Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <
    ad0d2d4ada51321db787262ef343193c712b76b5
  - >-
    Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <
    f0ca020cbb9bb7f3f4ea8ba1dfcf30a282aec91e
  - Linux 2.6.12
published: '2026-10-18'
updated: '2026-10-18'
sourceUpdated: '2026-10-18T15:19:14.606Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-98602'
references:
  - url: 'https://git.kernel.org/stable/c/7af80ad2cebfe2f1879d6a39a1aaa061d9c4e1ca'
  - url: 'https://git.kernel.org/stable/c/667aa703e11cdc237d169393bc6a5ea9acbb33c2'
  - url: 'https://git.kernel.org/stable/c/3e605ff5932afe0970c2beca66f2f1ba2babe4dd'
  - url: 'https://git.kernel.org/stable/c/035f9b1809861967e58ce652680d70ea1502058f'
  - url: 'https://git.kernel.org/stable/c/1e7aebc188f889b56c3aaeb6133ef6d77022c887'
  - url: 'https://git.kernel.org/stable/c/8f31031326994d1abfcc6ebb6927ef96e51fb9ff'
  - url: 'https://git.kernel.org/stable/c/ad0d2d4ada51321db787262ef343193c712b76b5'
  - url: 'https://git.kernel.org/stable/c/f0ca020cbb9bb7f3f4ea8ba1dfcf30a282aec91e'
tags:
  - cve.org
ingestedAt: '2026-10-18T15:45:12.245Z'
---

## Overview

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

Bluetooth: bnep: fix out-of-bounds reads on short RX/TX frames and control fallthrough

Fix multiple out-of-bounds reads in Bluetooth BNEP frame processing:

1. In bnep_rx_frame() and bnep_ctrl_frame() (net/bluetooth/bnep/core.c),
   use pskb_may_pull() to verify the BNEP header, control type byte,
   filter count, and extension headers exist before reading them, and
   return 0 after handling BNEP_CONTROL instead of falling through to
   Ethernet frame submission when no extension headers follow.
2. In bnep_net_xmit() (net/bluetooth/bnep/netdev.c), verify skb->len >=
   ETH_HLEN with pskb_may_pull() before reading the 14-byte Ethernet
   header to prevent an out-of-bounds heap read and infoleak on short
   AF_PACKET TX frames.

## Affected

- `Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 7af80ad2cebfe2f1879d6a39a1aaa061d9c4e1ca`
- `Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 667aa703e11cdc237d169393bc6a5ea9acbb33c2`
- `Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 3e605ff5932afe0970c2beca66f2f1ba2babe4dd`
- `Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 035f9b1809861967e58ce652680d70ea1502058f`
- `Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 1e7aebc188f889b56c3aaeb6133ef6d77022c887`
- `Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 8f31031326994d1abfcc6ebb6927ef96e51fb9ff`
- `Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < ad0d2d4ada51321db787262ef343193c712b76b5`
- `Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < f0ca020cbb9bb7f3f4ea8ba1dfcf30a282aec91e`
- `Linux 2.6.12`

## Remediation

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