CVE-2022-50715

Kernel crash via lingering failed-RAID1 worker thread

Published Dec 24, 2025 · Updated Dec 24, 2025

NULL-pointer dereference in Linux kernel md/raid1 allows attackers to crash the kernel during shutdown after a RAID1 setup failure. The failed startup path frees RAID1 resources without unregistering the mdx_raid1 worker thread, which later dereferences released state in md_check_recovery. The condition requires a RAID1 array assembled only from an inactive disk to fail during startup and remain present until shutdown.

CVSS severity5.5
Medium
EPSS probability0.28%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

NULL-pointer dereference in Linux kernel md/raid1 allows attackers to crash the kernel during shutdown after a RAID1 setup failure. The failed startup path frees RAID1 resources without unregistering the mdx_raid1 worker thread, which later dereferences released state in md_check_recovery. The condition requires a RAID1 array assembled only from an inactive disk to fail during startup and remain present until shutdown.

The record

CVE
CVE-2022-50715
Published
Dec 24, 2025
Updated
Dec 24, 2025
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
Unavailable
Attack vector
local
Privileges
Unavailable

Timeline

How it unfolded

  1. Dec 24, 2025CVE publishedPublication date reported by the CVE source.
  2. Dec 24, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <0c7c7468c3ae222e297b7dc74d6ccb69c4d0183c
  2. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <10d713532ffc67b13df61ed9c138a8ce0a186236
  3. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <110f14a7b2eb5b8aa9df5af2d629524f2a07d543
  4. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <19d5a0e17aba92b10d895e40ec782768cf00da23
  5. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <22be44212cad8be96860346882d8e694b0b437b6
  6. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <a3cc41e05e8af340a2a759b168c29fffdb9194eb
  7. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <b611ad14006e5be2170d9e8e611bf49dff288911
  8. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <d26364596db8f8b55277b2afb3952e05a4057a21
  9. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <d684ceb77311410aeaf5189d321f9f564838c49a

What conditions does exploitation require?

Attack vectorlocal
Required privilegesUnavailable in this record.

What is affected?

The Linux Kernel Organization · Linuxversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <0c7c7468c3ae222e297b7dc74d6ccb69c4d0183c; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <10d713532ffc67b13df61ed9c138a8ce0a186236; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <110f14a7b2eb5b8aa9df5af2d629524f2a07d543; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <19d5a0e17aba92b10d895e40ec782768cf00da23; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <22be44212cad8be96860346882d8e694b0b437b6; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <a3cc41e05e8af340a2a759b168c29fffdb9194eb; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <b611ad14006e5be2170d9e8e611bf49dff288911; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <d26364596db8f8b55277b2afb3952e05a4057a21; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <d684ceb77311410aeaf5189d321f9f564838c49a

Published CVSS scores

5.5CISA-ADPCVSS: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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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
PrivilegesUnavailable
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

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo