CVE-2022-50387

Local service interruption via CMDQ memory leak

Published Sep 18, 2025 · Updated Sep 18, 2025

Memory leak in the Linux kernel hinic driver allows local users to interrupt service via failed command-queue initialization. The hinic_init_cmdqs() error path returns when hinic_set_cmdq_depth() fails without releasing allocated CMDQ memory. Reaching the issue requires local low-privileged access and a supported Huawei HiNIC PF adapter; public records do not describe how a user forces depth setup to fail.

CVSS severity5.5
Medium
EPSS probability0.15%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Memory leak in the Linux kernel hinic driver allows local users to interrupt service via failed command-queue initialization. The hinic_init_cmdqs() error path returns when hinic_set_cmdq_depth() fails without releasing allocated CMDQ memory. Reaching the issue requires local low-privileged access and a supported Huawei HiNIC PF adapter; public records do not describe how a user forces depth setup to fail.

The record

CVE
CVE-2022-50387
Published
Sep 18, 2025
Updated
Sep 18, 2025
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-401
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 18, 2025CVE publishedPublication date reported by the CVE source.
  2. Sep 18, 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=5.8
  2. Affected versionversion=72ef908bb3ff9261dc38d079ef332c91418f8693 <363cc87767f6ddcfb9158ad2e2afa2f8d5c4b94e
  3. Affected versionversion=72ef908bb3ff9261dc38d079ef332c91418f8693 <6016d96a6adf66d61655d85da02e1a4c1deccbd6
  4. Affected versionversion=72ef908bb3ff9261dc38d079ef332c91418f8693 <6603843c80b16957f5d7d14d897faf13cef2b8b9
  5. Affected versionversion=72ef908bb3ff9261dc38d079ef332c91418f8693 <9145d512ddff76df88832b29575488199df544a1

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=5.8; version=72ef908bb3ff9261dc38d079ef332c91418f8693 <363cc87767f6ddcfb9158ad2e2afa2f8d5c4b94e; version=72ef908bb3ff9261dc38d079ef332c91418f8693 <6016d96a6adf66d61655d85da02e1a4c1deccbd6; version=72ef908bb3ff9261dc38d079ef332c91418f8693 <6603843c80b16957f5d7d14d897faf13cef2b8b9; version=72ef908bb3ff9261dc38d079ef332c91418f8693 <9145d512ddff76df88832b29575488199df544a1

Published CVSS scores

5.5CISA-ADPCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
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.

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

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

CWE-401Missing Release of Memory after Effective Lifetime

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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