CVE-2025-21830 (GCVE-0-2025-21830)
Vulnerability from cvelistv5 – Published: 2025-03-06 16:08 – Updated: 2026-08-05 11:54
VLAI
EPSS
VEX
Title
landlock: Handle weird files
Summary
In the Linux kernel, the following vulnerability has been resolved:
landlock: Handle weird files
A corrupted filesystem (e.g. bcachefs) might return weird files.
Instead of throwing a warning and allowing access to such file, treat
them as regular files.
Severity
7.3 (High)
Assigner
References
7 references
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux |
Affected:
cb2c7d1a1776057c9a1f48ed1250d85e94d4850d , < a1fccf6b72b56343dd4f2d96b008147f9951eebd
(git)
Affected: cb2c7d1a1776057c9a1f48ed1250d85e94d4850d , < 7d6121228959ddf44a4b9b6a177384ac7854e2f9 (git) Affected: cb2c7d1a1776057c9a1f48ed1250d85e94d4850d , < 39bb3d56f1c351e76bb18895d0e73796e653d5c1 (git) Affected: cb2c7d1a1776057c9a1f48ed1250d85e94d4850d , < 2569e65d2eb6ac1afe6cb6dfae476afee8b6771a (git) Affected: cb2c7d1a1776057c9a1f48ed1250d85e94d4850d , < 0fde195a373ab1267e60baa9e1a703a97e7464cd (git) Affected: cb2c7d1a1776057c9a1f48ed1250d85e94d4850d , < 49440290a0935f428a1e43a5ac8dc275a647ff80 (git) |
guessed | |
| Linux | Linux |
Affected:
5.13
Unaffected: 0 , < 5.13 (semver) Unaffected: 5.15.179 , ≤ 5.15.* (semver) Unaffected: 6.1.129 , ≤ 6.1.* (semver) Unaffected: 6.6.76 , ≤ 6.6.* (semver) Unaffected: 6.12.13 , ≤ 6.12.* (semver) Unaffected: 6.13.2 , ≤ 6.13.* (semver) Unaffected: 6.14 , ≤ * (original_commit_for_fix) |
guessed |
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"redhat_vex": {
"aggregate_severity": "Low",
"current_release_date": "2026-07-30T10:13:15+00:00",
"cve": "CVE-2025-21830",
"id": "CVE-2025-21830",
"initial_release_date": "2025-03-06T00:00:00+00:00",
"product_status:known_affected": "184",
"product_status:known_not_affected": "90",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "kernel: landlock: Handle weird files",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-21830.json",
"version": "3"
},
"suse_vex": {
"aggregate_severity": "moderate",
"current_release_date": "2026-08-29T01:27:25Z",
"cve": "CVE-2025-21830",
"id": "CVE-2025-21830",
"initial_release_date": "2025-03-07T02:37:07Z",
"product_status:known_affected": "455",
"product_status:known_not_affected": "349",
"product_status:recommended": "357",
"source": "SUSE CSAF VEX",
"status": "interim",
"title": "SUSE CVE CVE-2025-21830",
"url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2025-21830.json",
"version": "41"
}
}
}
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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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