CVE-2025-21894 (GCVE-0-2025-21894)
Vulnerability from cvelistv5 – Published: 2025-04-01 15:26 – Updated: 2026-05-11 21:08
VLAI
EPSS
VEX
Title
net: enetc: VFs do not support HWTSTAMP_TX_ONESTEP_SYNC
Summary
In the Linux kernel, the following vulnerability has been resolved:
net: enetc: VFs do not support HWTSTAMP_TX_ONESTEP_SYNC
Actually ENETC VFs do not support HWTSTAMP_TX_ONESTEP_SYNC because only
ENETC PF can access PMa_SINGLE_STEP registers. And there will be a crash
if VFs are used to test one-step timestamp, the crash log as follows.
[ 129.110909] Unable to handle kernel paging request at virtual address 00000000000080c0
[ 129.287769] Call trace:
[ 129.290219] enetc_port_mac_wr+0x30/0xec (P)
[ 129.294504] enetc_start_xmit+0xda4/0xe74
[ 129.298525] enetc_xmit+0x70/0xec
[ 129.301848] dev_hard_start_xmit+0x98/0x118
Severity
5.5 (Medium)
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux |
Affected:
41514737ecaa603a5127cdccdc5f17ef11b9b3dc , < 1748531839298ab7be682155f6cd98ae04773e6a
(git)
Affected: 41514737ecaa603a5127cdccdc5f17ef11b9b3dc , < 3d9634211121700568d0e3635ebdd5df06d20440 (git) Affected: 41514737ecaa603a5127cdccdc5f17ef11b9b3dc , < 8c393efd7420cc994864d059fcc6219bfd7cb840 (git) Affected: 41514737ecaa603a5127cdccdc5f17ef11b9b3dc , < a562d0c4a893eae3ea51d512c4d90ab858a6b7ec (git) |
guessed | |
| Linux | Linux |
Affected:
5.3
Unaffected: 0 , < 5.3 (semver) Unaffected: 6.6.83 , ≤ 6.6.* (semver) Unaffected: 6.12.18 , ≤ 6.12.* (semver) Unaffected: 6.13.6 , ≤ 6.13.* (semver) Unaffected: 6.14 , ≤ * (original_commit_for_fix) |
guessed |
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"drivers/net/ethernet/freescale/enetc/enetc.c",
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"title": "net: enetc: VFs do not support HWTSTAMP_TX_ONESTEP_SYNC",
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],
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},
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},
{
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"version": "6.13.6",
"versionType": "semver"
},
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"version": "6.14",
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}
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"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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"configurations": [
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: enetc: VFs do not support HWTSTAMP_TX_ONESTEP_SYNC\n\nActually ENETC VFs do not support HWTSTAMP_TX_ONESTEP_SYNC because only\nENETC PF can access PMa_SINGLE_STEP registers. And there will be a crash\nif VFs are used to test one-step timestamp, the crash log as follows.\n\n[ 129.110909] Unable to handle kernel paging request at virtual address 00000000000080c0\n[ 129.287769] Call trace:\n[ 129.290219] enetc_port_mac_wr+0x30/0xec (P)\n[ 129.294504] enetc_start_xmit+0xda4/0xe74\n[ 129.298525] enetc_xmit+0x70/0xec\n[ 129.301848] dev_hard_start_xmit+0x98/0x118"
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"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net: enetc: Las funciones virtuales no admiten HWTSTAMP_TX_ONESTEP_SYNC. En realidad, las funciones virtuales de ENETC no admiten HWTSTAMP_TX_ONESTEP_SYNC porque solo la funci\u00f3n de protecci\u00f3n de ENETC puede acceder a los registros PMa_SINGLE_STEP. Se producir\u00e1 un fallo si se utilizan funciones virtuales para probar la marca de tiempo de un paso. El registro de fallos es el siguiente. [ 129.110909] No se puede gestionar la solicitud de paginaci\u00f3n del kernel en la direcci\u00f3n virtual 00000000000080c0 [ 129.287769] Rastreo de llamadas: [ 129.290219] enetc_port_mac_wr+0x30/0xec (P) [ 129.294504] enetc_start_xmit+0xda4/0xe74 [ 129.298525] enetc_xmit+0x70/0xec [ 129.301848] dev_hard_start_xmit+0x98/0x118"
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"id": "CVE-2025-21894",
"lastModified": "2026-06-17T08:44:33.090",
"metrics": {
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"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 5.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
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"type": "Primary"
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},
"published": "2025-04-01T16:15:19.777",
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"value": "NVD-CWE-noinfo"
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"redhat_vex": {
"aggregate_severity": "Moderate",
"current_release_date": "2026-06-30T00:04:50+00:00",
"cve": "CVE-2025-21894",
"id": "CVE-2025-21894",
"initial_release_date": "2025-04-01T00:00:00+00:00",
"product_status:known_affected": "76",
"product_status:known_not_affected": "198",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "kernel: net: enetc: VFs do not support HWTSTAMP_TX_ONESTEP_SYNC",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-21894.json",
"version": "3"
}
}
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
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.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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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.
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