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CVE-2025-21814 (GCVE-0-2025-21814)

Vulnerability from cvelistv5 – Published: 2025-02-27 20:04 – Updated: 2026-09-08 08:40
VLAI
Title
ptp: Ensure info->enable callback is always set
Summary
In the Linux kernel, the following vulnerability has been resolved: ptp: Ensure info->enable callback is always set The ioctl and sysfs handlers unconditionally call the ->enable callback. Not all drivers implement that callback, leading to NULL dereferences. Example of affected drivers: ptp_s390.c, ptp_vclock.c and ptp_mock.c. Instead use a dummy callback if no better was specified by the driver.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: d94ba80ebbea17f036cecb104398fbcd788aa742 , < fdc1e72487781dd7705bcbe30878bee7d5d1f3e8 (git)
Affected: d94ba80ebbea17f036cecb104398fbcd788aa742 , < 9df3a9284f39bfd51a9f72a6a165c79e2aa5066b (git)
Affected: d94ba80ebbea17f036cecb104398fbcd788aa742 , < 1334c64a5d1de6666e0c9f984db6745083df1eb4 (git)
Affected: d94ba80ebbea17f036cecb104398fbcd788aa742 , < 5d1041c76de656f9f8d5a192218039a9acf9bd00 (git)
Affected: d94ba80ebbea17f036cecb104398fbcd788aa742 , < 81846070cba17125a866e8023c01d3465b153339 (git)
Affected: d94ba80ebbea17f036cecb104398fbcd788aa742 , < 8441aea46445252df5d2eed6deb6d5246fc24002 (git)
Affected: d94ba80ebbea17f036cecb104398fbcd788aa742 , < 755caf4ee1c615ee5717862e427124370f46b1f3 (git)
Affected: d94ba80ebbea17f036cecb104398fbcd788aa742 , < fd53aa40e65f518453115b6f56183b0c201db26b (git)
guessed Create a notification for this product.
Linux Linux Affected: 3.0
Unaffected: 0 , < 3.0 (semver)
Unaffected: 5.4.291 , ≤ 5.4.* (semver)
Unaffected: 5.10.235 , ≤ 5.10.* (semver)
Unaffected: 5.15.179 , ≤ 5.15.* (semver)
Unaffected: 6.1.129 , ≤ 6.1.* (semver)
Unaffected: 6.6.78 , ≤ 6.6.* (semver)
Unaffected: 6.12.14 , ≤ 6.12.* (semver)
Unaffected: 6.13.3 , ≤ 6.13.* (semver)
Unaffected: 6.14 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP Affected: V3.1.6 , < * (custom)
guessed Create a notification for this product.
Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP Affected: V3.1.6 , < * (custom)
guessed Create a notification for this product.
Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem Affected: 0 , < * (custom)
guessed Create a notification for this product.
Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP Affected: V3.1.6 , < * (custom)
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No todos los controladores implementan esa devoluci\u00f3n de llamada, lo que lleva a desreferencias NULL. Ejemplo de controladores afectados: ptp_s390.c, ptp_vclock.c y ptp_mock.c. En su lugar, utilice una devoluci\u00f3n de llamada ficticia si el controlador no especific\u00f3 nada mejor.\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"drivers/ptp/ptp_clock.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"d94ba80ebbea17f036cecb104398fbcd788aa742\",\"lessThan\":\"fdc1e72487781dd7705bcbe30878bee7d5d1f3e8\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"d94ba80ebbea17f036cecb104398fbcd788aa742\",\"lessThan\":\"9df3a9284f39bfd51a9f72a6a165c79e2aa5066b\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"d94ba80ebbea17f036cecb104398fbcd788aa742\",\"lessThan\":\"1334c64a5d1de6666e0c9f984db6745083df1eb4\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"d94ba80ebbea17f036cecb104398fbcd788aa742\",\"lessThan\":\"5d1041c76de656f9f8d5a192218039a9acf9bd00\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"d94ba80ebbea17f036cecb104398fbcd788aa742\",\"lessThan\":\"81846070cba17125a866e8023c01d3465b153339\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"d94ba80ebbea17f036cecb104398fbcd788aa742\",\"lessThan\":\"8441aea46445252df5d2eed6deb6d5246fc24002\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"d94ba80ebbea17f036cecb104398fbcd788aa742\",\"lessThan\":\"755caf4ee1c615ee5717862e427124370f46b1f3\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"d94ba80ebbea17f036cecb104398fbcd788aa742\",\"lessThan\":\"fd53aa40e65f518453115b6f56183b0c201db26b\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"drivers/ptp/ptp_clock.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"3.0\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"3.0\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.4.291\",\"lessThanOrEqual\":\"5.4.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.10.235\",\"lessThanOrEqual\":\"5.10.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.15.179\",\"lessThanOrEqual\":\"5.15.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.1.129\",\"lessThanOrEqual\":\"6.1.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.6.78\",\"lessThanOrEqual\":\"6.6.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.12.14\",\"lessThanOrEqual\":\"6.12.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.13.3\",\"lessThanOrEqual\":\"6.13.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.14\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]},{\"source\":\"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e\",\"affectedData\":[{\"vendor\":\"Siemens\",\"product\":\"SIMATIC S7-1500 CPU 1518-4 PN/DP MFP\",\"defaultStatus\":\"unknown\",\"versions\":[{\"version\":\"V3.1.6\",\"lessThan\":\"*\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"Siemens\",\"product\":\"SIMATIC S7-1500 CPU 1518-4 PN/DP MFP\",\"defaultStatus\":\"unknown\",\"versions\":[{\"version\":\"V3.1.6\",\"lessThan\":\"*\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"Siemens\",\"product\":\"SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP\",\"defaultStatus\":\"unknown\",\"versions\":[{\"version\":\"V3.1.6\",\"lessThan\":\"*\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"Siemens\",\"product\":\"SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP\",\"defaultStatus\":\"unknown\",\"versions\":[{\"version\":\"V3.1.6\",\"lessThan\":\"*\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"Siemens\",\"product\":\"SIMATIC S7-1500 TM MFP - GNU/Linux subsystem\",\"defaultStatus\":\"unknown\",\"versions\":[{\"version\":\"0\",\"lessThan\":\"*\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"Siemens\",\"product\":\"SIPLUS S7-1500 CPU 1518-4 PN/DP MFP\",\"defaultStatus\":\"unknown\",\"versions\":[{\"version\":\"V3.1.6\",\"lessThan\":\"*\",\"versionType\":\"custom\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-476\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"3.0\",\"versionEndExcluding\":\"6.1.129\",\"matchCriteriaId\":\"D12D04F8-8965-4CB6-88C9-E5E15DE32F98\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.2\",\"versionEndExcluding\":\"6.6.78\",\"matchCriteriaId\":\"0C58261F-EDFB-4A12-8CCD-F12101482030\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.7\",\"versionEndExcluding\":\"6.12.14\",\"matchCriteriaId\":\"033BB7EE-C9A2-45EA-BAC9-87BB9D951BCD\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.13\",\"versionEndExcluding\":\"6.13.3\",\"matchCriteriaId\":\"0E92CEE3-1FC3-4AFC-A513-DEDBA7414F00\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/1334c64a5d1de6666e0c9f984db6745083df1eb4\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/5d1041c76de656f9f8d5a192218039a9acf9bd00\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/755caf4ee1c615ee5717862e427124370f46b1f3\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/81846070cba17125a866e8023c01d3465b153339\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/8441aea46445252df5d2eed6deb6d5246fc24002\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/9df3a9284f39bfd51a9f72a6a165c79e2aa5066b\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/fd53aa40e65f518453115b6f56183b0c201db26b\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/fdc1e72487781dd7705bcbe30878bee7d5d1f3e8\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://lists.debian.org/debian-lts-announce/2025/03/msg00028.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://cert-portal.siemens.com/productcert/html/ssa-019113.html\",\"source\":\"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e\"},{\"url\":\"https://cert-portal.siemens.com/productcert/html/ssa-265688.html\",\"source\":\"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e\"}]}}",
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-06-30T00:00:21+00:00",
      "cve": "CVE-2025-21814",
      "id": "CVE-2025-21814",
      "initial_release_date": "2025-02-27T00:00:00+00:00",
      "product_status:known_affected": "274",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: ptp: Ensure info-\u003eenable callback is always set",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-21814.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-09-07T16:36:51Z",
      "cve": "CVE-2025-21814",
      "id": "CVE-2025-21814",
      "initial_release_date": "2025-03-01T02:52:24Z",
      "product_status:known_affected": "794",
      "product_status:recommended": "437",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2025-21814",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2025-21814.json",
      "version": "50"
    }
  }
}



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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

Author Source Type Date Other

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.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.