CVE-2022-50029

Kernel disruption via non-disableable sleep-clock shutdown

Published Jun 18, 2025 · Updated May 11, 2026

Denial of service in the Linux IPQ8074 clock driver allows local users to disrupt kernel operation while USB clocks are disabled. The Qualcomm IPQ8074 clock definition omits CLK_IS_CRITICAL from gcc_sleep_clk_src, so USB teardown asks the clock framework to disable a source that cannot be turned off. The path requires local access on affected IPQ8074 hardware and reaches clk_branch_wait through DWC3 driver removal, producing a kernel warning and availability loss.

CVSS severity5.5
Medium
EPSS probability0.18%
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 IPQ8074 clock driver allows local users to disrupt kernel operation while USB clocks are disabled. The Qualcomm IPQ8074 clock definition omits CLK_IS_CRITICAL from gcc_sleep_clk_src, so USB teardown asks the clock framework to disable a source that cannot be turned off. The path requires local access on affected IPQ8074 hardware and reaches clk_branch_wait through DWC3 driver removal, producing a kernel warning and availability loss.

The record

CVE
CVE-2022-50029
Published
Jun 18, 2025
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
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=371a95074558a08d47e3acaa29f810aae6f03d0a <17d58499dc9c7e059dab7d170e9bae1e7e9c561b
  2. Affected versionversion=371a95074558a08d47e3acaa29f810aae6f03d0a <1bf7305e79aab095196131bdc87a97796e0e3fac
  3. Affected versionversion=371a95074558a08d47e3acaa29f810aae6f03d0a <38cee0d2b65eed42a44052de1bfdc0177b6c3f05
  4. Affected versionversion=371a95074558a08d47e3acaa29f810aae6f03d0a <4203b76abe539f3cac258d4cf1e16e2dd95ea60f
  5. Affected versionversion=371a95074558a08d47e3acaa29f810aae6f03d0a <459411b9f0180e3f382d7abfa3028dd3285984c3
  6. Affected versionversion=371a95074558a08d47e3acaa29f810aae6f03d0a <6b90ab952401bd6c1a321dcfc0e0df080f2bc905
  7. Affected versionversion=371a95074558a08d47e3acaa29f810aae6f03d0a <d401611a93b332914cf91eb9bc0b63fa1bdc17e9
  8. Affected versionversion=4.13

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=371a95074558a08d47e3acaa29f810aae6f03d0a <17d58499dc9c7e059dab7d170e9bae1e7e9c561b; version=371a95074558a08d47e3acaa29f810aae6f03d0a <1bf7305e79aab095196131bdc87a97796e0e3fac; version=371a95074558a08d47e3acaa29f810aae6f03d0a <38cee0d2b65eed42a44052de1bfdc0177b6c3f05; version=371a95074558a08d47e3acaa29f810aae6f03d0a <4203b76abe539f3cac258d4cf1e16e2dd95ea60f; version=371a95074558a08d47e3acaa29f810aae6f03d0a <459411b9f0180e3f382d7abfa3028dd3285984c3; version=371a95074558a08d47e3acaa29f810aae6f03d0a <6b90ab952401bd6c1a321dcfc0e0df080f2bc905; version=371a95074558a08d47e3acaa29f810aae6f03d0a <d401611a93b332914cf91eb9bc0b63fa1bdc17e9; version=4.13

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 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

T1499.004Application or System Exploitation

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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