---
id: CVE-2026-98633
title: 'Bluetooth: btnxpuart: Fix skb leak in nxp_process_fw_dump()'
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  Bluetooth: btnxpuart: Fix skb leak in nxp_process_fw_dump()

  When CONFIG_DEV_COREDUMP=n, hci_devcd_append() returns -EOPNOTSUPP
  without freeing its skb argument. This l…
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= 998e447f443f138c90faa6ff3845082af419070e <
    8a36598050cd1e5abb1d5ed42cc224cfcb538c4f
  - >-
    Linux >= 998e447f443f138c90faa6ff3845082af419070e <
    edcb84ee607a9ddfc6f2771a7f399115f0b0f19d
  - >-
    Linux >= 998e447f443f138c90faa6ff3845082af419070e <
    f2bbb36426581045a8bf7793da5419b9375e4348
  - Linux 6.15
published: '2026-10-18'
updated: '2026-10-18'
sourceUpdated: '2026-10-18T15:19:58.365Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-98633'
references:
  - url: 'https://git.kernel.org/stable/c/8a36598050cd1e5abb1d5ed42cc224cfcb538c4f'
  - url: 'https://git.kernel.org/stable/c/edcb84ee607a9ddfc6f2771a7f399115f0b0f19d'
  - url: 'https://git.kernel.org/stable/c/f2bbb36426581045a8bf7793da5419b9375e4348'
tags:
  - cve.org
ingestedAt: '2026-10-18T15:45:12.233Z'
---

## Overview

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

Bluetooth: btnxpuart: Fix skb leak in nxp_process_fw_dump()

When CONFIG_DEV_COREDUMP=n, hci_devcd_append() returns -EOPNOTSUPP
without freeing its skb argument. This leaks the cloned skb and also
prevents nxp_set_ind_reset() from being called to perform recovery.

Fix by guarding the hci_devcd_append(hdev, skb_clone(skb, GFP_ATOMIC))
call with IS_ENABLED(CONFIG_DEV_COREDUMP).

## Affected

- `Linux >= 998e447f443f138c90faa6ff3845082af419070e < 8a36598050cd1e5abb1d5ed42cc224cfcb538c4f`
- `Linux >= 998e447f443f138c90faa6ff3845082af419070e < edcb84ee607a9ddfc6f2771a7f399115f0b0f19d`
- `Linux >= 998e447f443f138c90faa6ff3845082af419070e < f2bbb36426581045a8bf7793da5419b9375e4348`
- `Linux 6.15`

## Remediation

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