---
id: CVE-2024-27053
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  wifi: wilc1000: fix RCU usage in connect path

  With lockdep enabled, calls to the connect function from cfg802.11 layer
  lead to the following warning:

  ================…
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  wifi: wilc1000: fix RCU usage in connect path

  With lockdep enabled, calls to the connect function from cfg802.11 layer
  lead to the following warning:

  ================…
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'
cwe:
  - CWE-476
vendor: linux
product: linux_kernel
affected:
  - 'linux_kernel >= 5.1, < 5.4.273'
  - 'linux_kernel >= 5.5, < 5.10.214'
  - 'linux_kernel >= 5.11, < 5.15.153'
  - 'linux_kernel >= 5.16, < 6.1.83'
  - 'linux_kernel >= 6.2, < 6.6.23'
  - 'linux_kernel >= 6.7, < 6.7.11'
  - 'linux_kernel >= 6.8, < 6.8.2'
  - debian_linux = 10.0
patched:
  - linux_kernel 6.8.2
published: '2024-05-01'
updated: '2026-10-15'
sourceUpdated: '2026-10-15T01:17:38.017'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2024-27053'
references:
  - url: 'https://git.kernel.org/stable/c/205c50306acf58a335eb19fa84e40140f4fe814f'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/4bfd20d5f5c62b5495d6c0016ee6933bd3add7ce'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/5800ec78775c0cd646f71eb9bf8402fb794807de'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/745003b5917b610352f52fe0d11ef658d6471ec2'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/b4bbf38c350acb6500cbe667b1e2e68f896e4b38'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/d80fc436751cfa6b02a8eda74eb6cce7dadfe5a2'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/dd50d3ead6e3707bb0a5df7cc832730c93ace3a7'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/e556006de4ea93abe2b46cba202a2556c544b8b2'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/205c50306acf58a335eb19fa84e40140f4fe814f'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://git.kernel.org/stable/c/4bfd20d5f5c62b5495d6c0016ee6933bd3add7ce'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://git.kernel.org/stable/c/5800ec78775c0cd646f71eb9bf8402fb794807de'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://git.kernel.org/stable/c/745003b5917b610352f52fe0d11ef658d6471ec2'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://git.kernel.org/stable/c/b4bbf38c350acb6500cbe667b1e2e68f896e4b38'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://git.kernel.org/stable/c/d80fc436751cfa6b02a8eda74eb6cce7dadfe5a2'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://git.kernel.org/stable/c/dd50d3ead6e3707bb0a5df7cc832730c93ace3a7'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://git.kernel.org/stable/c/e556006de4ea93abe2b46cba202a2556c544b8b2'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://cert-portal.siemens.com/productcert/html/ssa-265688.html'
    label: 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
tags:
  - nvd
  - cve.org
epss: 0.01648
epssPercentile: 0.76366
ingestedAt: '2026-10-15T03:30:12.673Z'
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: partial
  timestamp: '2025-02-05T20:53:59.281892Z'
---

## Overview

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

wifi: wilc1000: fix RCU usage in connect path

With lockdep enabled, calls to the connect function from cfg802.11 layer
lead to the following warning:

=============================
WARNING: suspicious RCU usage
6.7.0-rc1-wt+ #333 Not tainted
-----------------------------
drivers/net/wireless/microchip/wilc1000/hif.c:386
suspicious rcu_dereference_check() usage!
[...]
stack backtrace:
CPU: 0 PID: 100 Comm: wpa_supplicant Not tainted 6.7.0-rc1-wt+ #333
Hardware name: Atmel SAMA5
 unwind_backtrace from show_stack+0x18/0x1c
 show_stack from dump_stack_lvl+0x34/0x48
 dump_stack_lvl from wilc_parse_join_bss_param+0x7dc/0x7f4
 wilc_parse_join_bss_param from connect+0x2c4/0x648
 connect from cfg80211_connect+0x30c/0xb74
 cfg80211_connect from nl80211_connect+0x860/0xa94
 nl80211_connect from genl_rcv_msg+0x3fc/0x59c
 genl_rcv_msg from netlink_rcv_skb+0xd0/0x1f8
 netlink_rcv_skb from genl_rcv+0x2c/0x3c
 genl_rcv from netlink_unicast+0x3b0/0x550
 netlink_unicast from netlink_sendmsg+0x368/0x688
 netlink_sendmsg from ____sys_sendmsg+0x190/0x430
 ____sys_sendmsg from ___sys_sendmsg+0x110/0x158
 ___sys_sendmsg from sys_sendmsg+0xe8/0x150
 sys_sendmsg from ret_fast_syscall+0x0/0x1c

This warning is emitted because in the connect path, when trying to parse
target BSS parameters, we dereference a RCU pointer whithout being in RCU
critical section.
Fix RCU dereference usage by moving it to a RCU read critical section. To
avoid wrapping the whole wilc_parse_join_bss_param under the critical
section, just use the critical section to copy ies data

## Affected

- `linux_kernel >= 5.1, < 5.4.273`
- `linux_kernel >= 5.5, < 5.10.214`
- `linux_kernel >= 5.11, < 5.15.153`
- `linux_kernel >= 5.16, < 6.1.83`
- `linux_kernel >= 6.2, < 6.6.23`
- `linux_kernel >= 6.7, < 6.7.11`
- `linux_kernel >= 6.8, < 6.8.2`
- `debian_linux = 10.0`

## Remediation

Upgrade past the affected range:

- `linux_kernel 6.8.2`