CVE-2022-50174

Kernel hang via sleeping under spinlock

Published Jun 18, 2025 · Updated May 11, 2026

Improper locking in the Linux kernel HINIC driver allows local users to trigger a kernel hang by reading bonded-interface statistics. hinic_get_stats64 calls down on nic_dev->mgmt_lock while bond_get_stats holds bond->stats_lock, allowing the task to sleep under pressure while the spinlock remains held. The HINIC device must be configured as a bond slave, and the consequence is a host panic and service interruption.

CVSS severity5.5
Medium
EPSS probability0.17%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper locking in the Linux kernel HINIC driver allows local users to trigger a kernel hang by reading bonded-interface statistics. hinic_get_stats64 calls down on nic_dev->mgmt_lock while bond_get_stats holds bond->stats_lock, allowing the task to sleep under pressure while the spinlock remains held. The HINIC device must be configured as a bond slave, and the consequence is a host panic and service interruption.

The record

CVE
CVE-2022-50174
Published
Jun 18, 2025
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-667, T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 18, 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=4.14
  2. Affected versionversion=edd384f682cc2981420628b769a1929db680f02f <3ba59bbe4f306bb6ee15753db0a40564c0eb7909
  3. Affected versionversion=edd384f682cc2981420628b769a1929db680f02f <693f31dc91568e61047fd2980a8235e856cd9ce8
  4. Affected versionversion=edd384f682cc2981420628b769a1929db680f02f <98f9fcdee35add80505b6c73f72de5f750d5c03c
  5. Affected versionversion=edd384f682cc2981420628b769a1929db680f02f <e74f3097a9c713ce855cda07713393bcc23a005d
  6. Affected versionversion=edd384f682cc2981420628b769a1929db680f02f <fced5bce712122654ec8a20356342698cce104d2

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=4.14; version=edd384f682cc2981420628b769a1929db680f02f <3ba59bbe4f306bb6ee15753db0a40564c0eb7909; version=edd384f682cc2981420628b769a1929db680f02f <693f31dc91568e61047fd2980a8235e856cd9ce8; version=edd384f682cc2981420628b769a1929db680f02f <98f9fcdee35add80505b6c73f72de5f750d5c03c; version=edd384f682cc2981420628b769a1929db680f02f <e74f3097a9c713ce855cda07713393bcc23a005d; version=edd384f682cc2981420628b769a1929db680f02f <fced5bce712122654ec8a20356342698cce104d2

Published CVSS scores

5.5Canonical UbuntuCVSS: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

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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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-667Improper Locking
T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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