CVE-2022-50186

Service interruption via unreleased transmit buffers

Published Jun 18, 2025 · Updated May 11, 2026

A memory leak in the Linux kernel ath11k driver allows local users to exhaust memory and interrupt service during TX completion errors. The ath11k_htc_tx_completion_handler returns when eid exceeds ATH11K_HTC_EP_COUNT without freeing the consumed socket buffer. Reachability requires affected ath11k wireless hardware and local low-privileged access to drive the completion error path; only availability is affected.

CVSS severity5.5
Medium
EPSS probability0.23%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

A memory leak in the Linux kernel ath11k driver allows local users to exhaust memory and interrupt service during TX completion errors. The ath11k_htc_tx_completion_handler returns when eid exceeds ATH11K_HTC_EP_COUNT without freeing the consumed socket buffer. Reachability requires affected ath11k wireless hardware and local low-privileged access to drive the completion error path; only availability is affected.

The record

CVE
CVE-2022-50186
Published
Jun 18, 2025
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-401, T1499.001
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=5.17
  2. Affected versionversion=f951380a6022440335f668f85296096ba13071ba <1f1483361585ae7556492f50f83f038bbdf8c294
  3. Affected versionversion=f951380a6022440335f668f85296096ba13071ba <dda25326839d6e6b1fe59e79616149e44ea4eaa4
  4. Affected versionversion=f951380a6022440335f668f85296096ba13071ba <e5646fe3b7ef739c392e59da7db6adf5e1fdef42

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=5.17; version=f951380a6022440335f668f85296096ba13071ba <1f1483361585ae7556492f50f83f038bbdf8c294; version=f951380a6022440335f668f85296096ba13071ba <dda25326839d6e6b1fe59e79616149e44ea4eaa4; version=f951380a6022440335f668f85296096ba13071ba <e5646fe3b7ef739c392e59da7db6adf5e1fdef42

Published CVSS scores

5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
5.5SUSECVSS:3.1/AV:L/AC:L/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-401Missing Release of Memory after Effective Lifetime
T1499.001OS Exhaustion Flood

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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