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CVE-2025-21830 (GCVE-0-2025-21830)

Vulnerability from cvelistv5 – Published: 2025-03-06 16:08 – Updated: 2026-08-05 11:54
VLAI
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)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:H
Assigner
References
Impacted 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 Create a notification for this product.
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 Create a notification for this product.
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      "id": "CVE-2025-21830",
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      "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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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.