---
id: CVE-2026-46187
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  wifi: rsi: fix kthread lifetime race between self-exit and external-stop

  RSI driver use both self-exit(kthread_complete_and_exit) and external-stop
  (kthread_stop) when…
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  wifi: rsi: fix kthread lifetime race between self-exit and external-stop

  RSI driver use both self-exit(kthread_complete_and_exit) and external-stop
  (kthread_stop) when…
severity: medium
cvss: 4.7
cvssVector: 'CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H'
cwe:
  - CWE-362
vendor: linux
product: linux_kernel
affected:
  - 'linux_kernel >= 3.18.139, < 3.19'
  - 'linux_kernel >= 4.4.179, < 4.5'
  - 'linux_kernel >= 4.9.170, < 4.10'
  - 'linux_kernel >= 4.14.113, < 4.15'
  - 'linux_kernel >= 4.19.36, < 5.10.258'
  - 'linux_kernel >= 5.11, < 5.15.209'
  - 'linux_kernel >= 5.16, < 6.1.175'
  - 'linux_kernel >= 6.2, < 6.6.140'
  - 'linux_kernel >= 6.7, < 6.12.88'
  - 'linux_kernel >= 6.13, < 6.18.30'
  - 'linux_kernel >= 6.19, < 7.0.7'
  - linux_kernel = 7.1
patched:
  - linux_kernel 7.0.7
published: '2026-05-28'
updated: '2026-10-15'
sourceUpdated: '2026-10-15T02:19:49.143'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-46187'
references:
  - url: 'https://git.kernel.org/stable/c/16d9f674c619838bdeae42abc0929c9c5477ea1f'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/4ac3095da22fc50e51ec10c3b8323c21ab3e441a'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/4f4c9b13c485abd0a2d2c97f9db339d1dd8e147f'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/4f697813162d5f9151726a6d2bee82bffe4b0256'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/4f9a4ae8d2c198f01611ea376034c326ef43ab56'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/95fcb436586dc3c2983537d557ac05bbc6a027f3'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/9dfe8a4458a063c6433526bc59112a169eee1aa3'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/db57a1aa54ff68669781976e4edb045e09e2b65b'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://cert-portal.siemens.com/productcert/html/ssa-784472.html'
    label: 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
tags:
  - nvd
  - cve.org
epss: 0.00111
epssPercentile: 0.01245
ingestedAt: '2026-10-15T03:30:12.895Z'
---

## Overview

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

wifi: rsi: fix kthread lifetime race between self-exit and external-stop

RSI driver use both self-exit(kthread_complete_and_exit) and external-stop
(kthread_stop) when killing a kthread. Generally, kthread_stop() is called
first, and in this case, no particular issues occur.

However, in rare instances where kthread_complete_and_exit() is called
first and then kthread_stop() is called, a UAF occurs because the kthread
object, which has already exited and been freed, is accessed again.

Therefore, to prevent this with minimal modification, you must remove
kthread_stop() and change the code to wait until the self-exit operation
is completed.

## Affected

- `linux_kernel >= 3.18.139, < 3.19`
- `linux_kernel >= 4.4.179, < 4.5`
- `linux_kernel >= 4.9.170, < 4.10`
- `linux_kernel >= 4.14.113, < 4.15`
- `linux_kernel >= 4.19.36, < 5.10.258`
- `linux_kernel >= 5.11, < 5.15.209`
- `linux_kernel >= 5.16, < 6.1.175`
- `linux_kernel >= 6.2, < 6.6.140`
- `linux_kernel >= 6.7, < 6.12.88`
- `linux_kernel >= 6.13, < 6.18.30`
- `linux_kernel >= 6.19, < 7.0.7`
- `linux_kernel = 7.1`

## Remediation

Upgrade past the affected range:

- `linux_kernel 7.0.7`