CVE-2022-50814

Kernel service interruption via mismatched parameter getter

Published Dec 30, 2025 · Updated Dec 30, 2025

An out-of-bounds read in the Linux kernel allows local users to interrupt kernel operation by reading a Hisilicon ZIP module parameter. The sgl_sge_nr callback passes a u16 object to param_get_int, which reads four bytes as an int instead of using the matching unsigned-short handler. Reachability requires local access and the hisi_zip parameter; published evidence does not establish code execution or data modification.

CVSS severity5.5
Medium
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

An out-of-bounds read in the Linux kernel allows local users to interrupt kernel operation by reading a Hisilicon ZIP module parameter. The sgl_sge_nr callback passes a u16 object to param_get_int, which reads four bytes as an int instead of using the matching unsigned-short handler. Reachability requires local access and the hisi_zip parameter; published evidence does not establish code execution or data modification.

The record

CVE
CVE-2022-50814
Published
Dec 30, 2025
Updated
Dec 30, 2025
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1499
Attack vector
local
Privileges
authenticated

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=5.5
  2. Affected versionversion=f081fda293ffba54216a7dab66faba7275475006 <272093471305261c4e07a2fc97c2d1e53cd56819
  3. Affected versionversion=f081fda293ffba54216a7dab66faba7275475006 <5eaebd19fbb0e26e73a34f55d3b1dc310df0eb15
  4. Affected versionversion=f081fda293ffba54216a7dab66faba7275475006 <d74f9340097a881869c4c22ca376654cc2516ecc
  5. Affected versionversion=f081fda293ffba54216a7dab66faba7275475006 <d88b88514ef28515ccfa1f1787c2aedef75a79dd
  6. Affected versionversion=f081fda293ffba54216a7dab66faba7275475006 <f8a983d6e01b198320d310cb1326364d7d973b2a

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=5.5; version=f081fda293ffba54216a7dab66faba7275475006 <272093471305261c4e07a2fc97c2d1e53cd56819; version=f081fda293ffba54216a7dab66faba7275475006 <5eaebd19fbb0e26e73a34f55d3b1dc310df0eb15; version=f081fda293ffba54216a7dab66faba7275475006 <d74f9340097a881869c4c22ca376654cc2516ecc; version=f081fda293ffba54216a7dab66faba7275475006 <d88b88514ef28515ccfa1f1787c2aedef75a79dd; version=f081fda293ffba54216a7dab66faba7275475006 <f8a983d6e01b198320d310cb1326364d7d973b2a

Published CVSS scores

5.5SUSECVSS: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

T1499Endpoint Denial of Service

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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