CVE-2022-50632

Service interruption via leaked CPU hotplug callback

Published Dec 8, 2025 · Updated May 11, 2026

Resource leak in Linux kernel 5.17 through 6.0.15 and 6.1 through 6.1.1 allows local users to interrupt service. The tad_pmu_init() failure path leaves the callback registered by cpuhp_setup_state_multi() when platform_driver_register() fails instead of removing its CPU-hotplug state. Reachability requires the Marvell CN10K TAD PMU driver and a failed platform-driver registration; the resulting availability impact does not disclose or modify data.

CVSS severity5.5
Medium
EPSS probability0.20%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Resource leak in Linux kernel 5.17 through 6.0.15 and 6.1 through 6.1.1 allows local users to interrupt service. The tad_pmu_init() failure path leaves the callback registered by cpuhp_setup_state_multi() when platform_driver_register() fails instead of removing its CPU-hotplug state. Reachability requires the Marvell CN10K TAD PMU driver and a failed platform-driver registration; the resulting availability impact does not disclose or modify data.

The record

CVE
CVE-2022-50632
Published
Dec 8, 2025
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
Unavailable
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 8, 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=036a7584bede317d0df6b854e4f531b7a2dd8b33 <367404bfd1aa87b2a50059cd8edc6c12c367cd15
  2. Affected versionversion=036a7584bede317d0df6b854e4f531b7a2dd8b33 <7772f4de934123ccd7c7cdc1dc4e46fdd5d767fb
  3. Affected versionversion=036a7584bede317d0df6b854e4f531b7a2dd8b33 <973ae93d80d9d262f695eb485a1902b74c4b9098
  4. Affected versionversion=5.17

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=036a7584bede317d0df6b854e4f531b7a2dd8b33 <367404bfd1aa87b2a50059cd8edc6c12c367cd15; version=036a7584bede317d0df6b854e4f531b7a2dd8b33 <7772f4de934123ccd7c7cdc1dc4e46fdd5d767fb; version=036a7584bede317d0df6b854e4f531b7a2dd8b33 <973ae93d80d9d262f695eb485a1902b74c4b9098; version=5.17

Published CVSS scores

5.5Red HatCVSS: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

No sourced classifications are available.

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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