CVE-2025-71299

Local service disruption via duplicate clock disable

Published May 8, 2026 · Updated May 8, 2026

Resource-management error in the Linux kernel cadence-quadspi driver allows local users to disrupt availability during device probing. The cqspi_probe error path calls pm_runtime_disable while also manually disabling the controller's main clock, causing runtime PM and probe cleanup to release the same clock reference. Triggering requires active runtime PM and a missing or malformed flash device-tree description; the documented result is a duplicate-disable warning from the clock subsystem.

CVSS severity5.5
Medium
EPSS probability0.12%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Resource-management error in the Linux kernel cadence-quadspi driver allows local users to disrupt availability during device probing. The cqspi_probe error path calls pm_runtime_disable while also manually disabling the controller's main clock, causing runtime PM and probe cleanup to release the same clock reference. Triggering requires active runtime PM and a missing or malformed flash device-tree description; the documented result is a duplicate-disable warning from the clock subsystem.

The record

CVE
CVE-2025-71299
Published
May 8, 2026
Updated
May 8, 2026
Vendor
The Linux Kernel Organization
Product
Linux Kernel
Classifications
T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. May 8, 2026CVE publishedPublication date reported by the CVE source.
  2. May 8, 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=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <08dca4c8099a41a9fa3be128a793387603f73a17
  2. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <9f0736a4e136a6eb61e0cf530ddc18ab6d816ba3
  3. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <dcaa104ad9c860a6dbd5797919e0ec0b1cd5a57a

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linux Kernelversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <08dca4c8099a41a9fa3be128a793387603f73a17; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <9f0736a4e136a6eb61e0cf530ddc18ab6d816ba3; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <dcaa104ad9c860a6dbd5797919e0ec0b1cd5a57a

Published CVSS scores

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.

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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

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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