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CVE-2025-38201 (GCVE-0-2025-38201)

Vulnerability from cvelistv5 – Published: 2025-07-04 13:37 – Updated: 2026-09-08 08:41
VLAI
Title
netfilter: nft_set_pipapo: clamp maximum map bucket size to INT_MAX
Summary
In the Linux kernel, the following vulnerability has been resolved: netfilter: nft_set_pipapo: clamp maximum map bucket size to INT_MAX Otherwise, it is possible to hit WARN_ON_ONCE in __kvmalloc_node_noprof() when resizing hashtable because __GFP_NOWARN is unset. Similar to: b541ba7d1f5a ("netfilter: conntrack: clamp maximum hashtable size to INT_MAX")
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 3c4287f62044a90e73a561aa05fc46e62da173da , < 1fe27f97944017a9d3c5af4d6d95282bff0f1147 (git)
Affected: 3c4287f62044a90e73a561aa05fc46e62da173da , < 4abccfb61f422300be014b8e734c63344306f009 (git)
Affected: 3c4287f62044a90e73a561aa05fc46e62da173da , < 80417057ac60dd80f4816eb426e4e4a5bf696534 (git)
Affected: 3c4287f62044a90e73a561aa05fc46e62da173da , < df524a68d9021c1401965d610bb6e42ee5d9611e (git)
Affected: 3c4287f62044a90e73a561aa05fc46e62da173da , < 0ab3de047808f375a36cd345225572eb3366f3c6 (git)
Affected: 3c4287f62044a90e73a561aa05fc46e62da173da , < d2768016f091f8a5264076b433fd7c3fabb6eb97 (git)
Affected: 3c4287f62044a90e73a561aa05fc46e62da173da , < b85e3367a5716ed3662a4fe266525190d2af76df (git)
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Linux Linux Affected: 5.6
Unaffected: 0 , < 5.6 (semver)
Unaffected: 5.10.250 , ≤ 5.10.* (semver)
Unaffected: 5.15.200 , ≤ 5.15.* (semver)
Unaffected: 6.1.163 , ≤ 6.1.* (semver)
Unaffected: 6.6.124 , ≤ 6.6.* (semver)
Unaffected: 6.12.35 , ≤ 6.12.* (semver)
Unaffected: 6.15.4 , ≤ 6.15.* (semver)
Unaffected: 6.16 , ≤ * (original_commit_for_fix)
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Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP Affected: V3.1.6 , < * (custom)
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Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP Affected: V3.1.5 , < * (custom)
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Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP Affected: V3.1.6 , < * (custom)
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Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP Affected: V3.1.5 , < * (custom)
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Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP Affected: V3.1.6 , < * (custom)
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Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP Affected: V3.1.5 , < * (custom)
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    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-06-30T00:56:02+00:00",
      "cve": "CVE-2025-38201",
      "id": "CVE-2025-38201",
      "initial_release_date": "2025-07-04T00:00:00+00:00",
      "product_status:known_affected": "232",
      "product_status:known_not_affected": "42",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: netfilter: nft_set_pipapo: clamp maximum map bucket size to INT_MAX",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-38201.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-08-30T01:56:20Z",
      "cve": "CVE-2025-38201",
      "id": "CVE-2025-38201",
      "initial_release_date": "2025-07-07T23:24:04Z",
      "product_status:first_fixed": "2",
      "product_status:known_affected": "634",
      "product_status:known_not_affected": "217",
      "product_status:recommended": "472",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2025-38201",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2025-38201.json",
      "version": "53"
    }
  }
}



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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.