CVE-2022-49265

Service interruption via sleep under genpd spinlock

Published Feb 26, 2025 · Updated May 11, 2026

Denial of service in the Linux kernel allows local users to interrupt service when an IRQ-safe generic power domain is removed. genpd_remove calls genpd_debug_remove while holding a spinlock, and the debugfs lookup then attempts a sleeping read-lock operation in atomic context. Triggering requires removal of a power domain marked GENPD_FLAG_IRQ_SAFE; the documented result is an invalid-context kernel bug that can interrupt availability.

CVSS severity5.5
Medium
EPSS probability0.26%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in the Linux kernel allows local users to interrupt service when an IRQ-safe generic power domain is removed. genpd_remove calls genpd_debug_remove while holding a spinlock, and the debugfs lookup then attempts a sleeping read-lock operation in atomic context. Triggering requires removal of a power domain marked GENPD_FLAG_IRQ_SAFE; the documented result is an invalid-context kernel bug that can interrupt availability.

The record

CVE
CVE-2022-49265
Published
Feb 26, 2025
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 26, 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=5.11
  2. Affected versionversion=718072ceb211833f3c71724f49d733d636067191 <2039163c30f886cf5638afd6993705ae9bb34a06
  3. Affected versionversion=718072ceb211833f3c71724f49d733d636067191 <d1b6840d8fb9b35193d45d8fe6b4d830bfd20c3c
  4. Affected versionversion=718072ceb211833f3c71724f49d733d636067191 <f6bfe8b5b2c2a5ac8bd2fc7bca3706e6c3fc26d8
  5. Affected versionversion=718072ceb211833f3c71724f49d733d636067191 <fee777ea77769cc5392a34805d9d73099a223fae

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=5.11; version=718072ceb211833f3c71724f49d733d636067191 <2039163c30f886cf5638afd6993705ae9bb34a06; version=718072ceb211833f3c71724f49d733d636067191 <d1b6840d8fb9b35193d45d8fe6b4d830bfd20c3c; version=718072ceb211833f3c71724f49d733d636067191 <f6bfe8b5b2c2a5ac8bd2fc7bca3706e6c3fc26d8; version=718072ceb211833f3c71724f49d733d636067191 <fee777ea77769cc5392a34805d9d73099a223fae

Published CVSS scores

5.5NIST NVDCVSS: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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1499.004Application or System Exploitation

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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