CVE-2022-49157

Storage interruption via premature PCI hardware access

Published Feb 26, 2025 · Updated May 11, 2026

Improper PCI error recovery in the Linux kernel qla2xxx driver allows local users to interrupt storage operations on affected hosts. The qla2xxx_pci_mmio_enabled callback reads adapter registers and can initiate a firmware dump before verifying that the PCI disconnect has cleared or the operating system has signaled resume. Reachability requires a QLogic adapter using qla2xxx and a recoverable PCI error; the observed consequence is failed firmware-dump activity and mailbox-command timeouts.

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

Improper PCI error recovery in the Linux kernel qla2xxx driver allows local users to interrupt storage operations on affected hosts. The qla2xxx_pci_mmio_enabled callback reads adapter registers and can initiate a firmware dump before verifying that the PCI disconnect has cleared or the operating system has signaled resume. Reachability requires a QLogic adapter using qla2xxx and a recoverable PCI error; the observed consequence is failed firmware-dump activity and mailbox-command timeouts.

The record

CVE
CVE-2022-49157
Published
Feb 26, 2025
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
Unavailable
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=2.6.33
  2. Affected versionversion=858808019313f217d63ec4ad26686e6fb7b08c19 <5ef6319f9882699613d5182fbd7929b017e8c5ab
  3. Affected versionversion=858808019313f217d63ec4ad26686e6fb7b08c19 <6c125fd5ad035777f7b471553f7ddda76e8e7136
  4. Affected versionversion=858808019313f217d63ec4ad26686e6fb7b08c19 <d7994dff9071555a959a168f9184dd9abae68a6b
  5. Affected versionversion=858808019313f217d63ec4ad26686e6fb7b08c19 <e35920ab7874d5e2faeb4f958a74bfa793f1ce5a

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=2.6.33; version=858808019313f217d63ec4ad26686e6fb7b08c19 <5ef6319f9882699613d5182fbd7929b017e8c5ab; version=858808019313f217d63ec4ad26686e6fb7b08c19 <6c125fd5ad035777f7b471553f7ddda76e8e7136; version=858808019313f217d63ec4ad26686e6fb7b08c19 <d7994dff9071555a959a168f9184dd9abae68a6b; version=858808019313f217d63ec4ad26686e6fb7b08c19 <e35920ab7874d5e2faeb4f958a74bfa793f1ce5a

Published CVSS scores

5.5NVDCVSS: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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