CVE-2022-50818

Storage I/O hang via abort request miscount

Published Dec 30, 2025 · Updated Dec 30, 2025

Denial of service in the Linux pm8001 SCSI driver allows local users to hang storage I/O by disabling a SATA disk's remote PHY. The completion path increments the per-device running_req counter for an internal abort task but never decrements it, so pm8001_dev_gone_notify() waits indefinitely. Triggering the fault requires a pm8001-managed SATA disk and permission to disable its PHY; affected workers remain blocked and storage operations stop progressing.

CVSS severityUnavailable
Unscored
EPSS probability0.24%
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 pm8001 SCSI driver allows local users to hang storage I/O by disabling a SATA disk's remote PHY. The completion path increments the per-device running_req counter for an internal abort task but never decrements it, so pm8001_dev_gone_notify() waits indefinitely. Triggering the fault requires a pm8001-managed SATA disk and permission to disable its PHY; affected workers remain blocked and storage operations stop progressing.

The record

CVE
CVE-2022-50818
Published
Dec 30, 2025
Updated
Dec 30, 2025
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
Unavailable
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Dec 30, 2025CVE publishedPublication date reported by the CVE source.
  2. Dec 30, 2025Record 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=2cbbf489778eb9dde51392ec5f74ae2868e4b857 <4e750e0d8e486569fcb7f4ba6f6471673ce7d8a2
  2. Affected versionversion=2cbbf489778eb9dde51392ec5f74ae2868e4b857 <a62b9fc9775fbc8e666bb328f6e53c168054d6fe
  3. Affected versionversion=2cbbf489778eb9dde51392ec5f74ae2868e4b857 <d8c22c4697c11ed28062afe3c2b377025be11a23
  4. Affected versionversion=5.18

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

The Linux Kernel Organization · Linuxversion=2cbbf489778eb9dde51392ec5f74ae2868e4b857 <4e750e0d8e486569fcb7f4ba6f6471673ce7d8a2; version=2cbbf489778eb9dde51392ec5f74ae2868e4b857 <a62b9fc9775fbc8e666bb328f6e53c168054d6fe; version=2cbbf489778eb9dde51392ec5f74ae2868e4b857 <d8c22c4697c11ed28062afe3c2b377025be11a23; version=5.18

Published CVSS scores

No CVSS assessment is available in this record.

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
Privilegesadmin
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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