CVE-2025-21822 (GCVE-0-2025-21822)

Vulnerability from cvelistv5 – Published: 2025-02-27 20:06 – Updated: 2026-05-11 21:07
VLAI
Title
ptp: vmclock: Set driver data before its usage
Summary
In the Linux kernel, the following vulnerability has been resolved: ptp: vmclock: Set driver data before its usage If vmclock_ptp_register() fails during probing, vmclock_remove() is called to clean up the ptp clock and misc device. It uses dev_get_drvdata() to access the vmclock state. However the driver data is not yet set at this point. Assign the driver data earlier.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 20503272422693d793b84f88bf23fe4e955d3a33 , < 6dbd8b91a065d1d8001446a28e72cd140f9acef0 (git)
Affected: 20503272422693d793b84f88bf23fe4e955d3a33 , < f7d07cd4f77d77f366c8ffbb8ba8b61f614e5fce (git)
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Linux Linux Affected: 6.13
Unaffected: 0 , < 6.13 (semver)
Unaffected: 6.13.4 , ≤ 6.13.* (semver)
Unaffected: 6.14 , ≤ * (original_commit_for_fix)
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{
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          "programFiles": [
            "drivers/ptp/ptp_vmclock.c"
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nptp: vmclock: Set driver data before its usage\n\nIf vmclock_ptp_register() fails during probing, vmclock_remove() is\ncalled to clean up the ptp clock and misc device.\nIt uses dev_get_drvdata() to access the vmclock state.\nHowever the driver data is not yet set at this point.\n\nAssign the driver data earlier."
        }
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          "url": "https://git.kernel.org/stable/c/f7d07cd4f77d77f366c8ffbb8ba8b61f614e5fce"
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    "assignerShortName": "Linux",
    "cveId": "CVE-2025-21822",
    "datePublished": "2025-02-27T20:06:13.422Z",
    "dateReserved": "2024-12-29T08:45:45.775Z",
    "dateUpdated": "2026-05-11T21:07:11.422Z",
    "state": "PUBLISHED"
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  }
}


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.