CVE-2022-50187

Kernel crash via uninitialized ath11k monitor timer

Published Jun 18, 2025 · Updated May 11, 2026

Race condition in the Linux kernel ath11k driver allows local users to crash the kernel while opening a wireless network interface. Device registration occurs before mon_reap_timer initialization, allowing ath11k_mac_op_start to pass the unset timer to mod_timer and reach BUG_ON. Reachability requires permission to bring up an ath11k-backed interface during device registration; a successful trigger causes a kernel oops and host service interruption.

CVSS severity4.7
Medium
EPSS probability0.15%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Race condition in the Linux kernel ath11k driver allows local users to crash the kernel while opening a wireless network interface. Device registration occurs before mon_reap_timer initialization, allowing ath11k_mac_op_start to pass the unset timer to mod_timer and reach BUG_ON. Reachability requires permission to bring up an ath11k-backed interface during device registration; a successful trigger causes a kernel oops and host service interruption.

The record

CVE
CVE-2022-50187
Published
Jun 18, 2025
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-362, T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 18, 2025CVE publishedPublication date reported by the CVE source.
  2. May 11, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=5.6
  2. Affected versionversion=d5c65159f2895379e11ca13f62feabe93278985d <307ce58270b3b50ca21cfcc910568429b06803f7
  3. Affected versionversion=d5c65159f2895379e11ca13f62feabe93278985d <a2c45f8c3d18269e641f0c7da2dde47ef8414034
  4. Affected versionversion=d5c65159f2895379e11ca13f62feabe93278985d <abb7dc8fbb27c15dcc927df56190f3c5ede58bd5
  5. Affected versionversion=d5c65159f2895379e11ca13f62feabe93278985d <d4ba1ff87b17e81686ada8f429300876f55f95ad
  6. Affected versionversion=d5c65159f2895379e11ca13f62feabe93278985d <eaff3946a86fc63280a30158a4ae1e141449817c

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=5.6; version=d5c65159f2895379e11ca13f62feabe93278985d <307ce58270b3b50ca21cfcc910568429b06803f7; version=d5c65159f2895379e11ca13f62feabe93278985d <a2c45f8c3d18269e641f0c7da2dde47ef8414034; version=d5c65159f2895379e11ca13f62feabe93278985d <abb7dc8fbb27c15dcc927df56190f3c5ede58bd5; version=d5c65159f2895379e11ca13f62feabe93278985d <d4ba1ff87b17e81686ada8f429300876f55f95ad; version=d5c65159f2895379e11ca13f62feabe93278985d <eaff3946a86fc63280a30158a4ae1e141449817c

Published CVSS scores

4.7CanonicalCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-362Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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