CVE-2025-38120 (GCVE-0-2025-38120)

Vulnerability from cvelistv5 – Published: 2025-07-03 08:35 – Updated: 2026-08-05 11:59
VLAI
Title
netfilter: nf_set_pipapo_avx2: fix initial map fill
Summary
In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_set_pipapo_avx2: fix initial map fill If the first field doesn't cover the entire start map, then we must zero out the remainder, else we leak those bits into the next match round map. The early fix was incomplete and did only fix up the generic C implementation. A followup patch adds a test case to nft_concat_range.sh.
Severity
9.4 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 77bf0c4ab928ca4c9a99311f4f70ba0c17fecba9 , < 8164d0efaf370c425dc69a1e8216940d09e7de0c (git)
Affected: 957a4d1c4c5849e4515c9fb4db21bf85318103dc , < b5ad58285f9217d68cd5ea2ad86ce254a3fe7c4d (git)
Affected: 9625c46ce6fd4f922595a4b32b1de5066d70464f , < 90bc7f5a244aadee4292b28098b7c98aadd4b3aa (git)
Affected: 69b6a67f7052905e928d75a0c5871de50e686986 , < 39bab2d3517b5b50c609b4f8c66129bf619fffa0 (git)
Affected: 791a615b7ad2258c560f91852be54b0480837c93 , < 251496ce1728c9fd47bd2b20a7b21b20b9a020ca (git)
Affected: 791a615b7ad2258c560f91852be54b0480837c93 , < 8068e1e42b46518ce680dc6470bcd710efc3fa0a (git)
Affected: 791a615b7ad2258c560f91852be54b0480837c93 , < ea77c397bff8b6d59f6d83dae1425b08f465e8b5 (git)
Affected: 8058c88ac0df21239daee54b5934d5c80ca9685f (git)
Affected: 5.15.165 , < 5.15.186 (semver)
Affected: 6.1.103 , < 6.1.142 (semver)
Affected: 6.6.44 , < 6.6.94 (semver)
Affected: 6.10.3 , < 6.11 (semver)
Create a notification for this product.
Linux Linux Affected: 6.11
Unaffected: 0 , < 6.11 (semver)
Unaffected: 5.15.186 , ≤ 5.15.* (semver)
Unaffected: 6.1.142 , ≤ 6.1.* (semver)
Unaffected: 6.6.94 , ≤ 6.6.* (semver)
Unaffected: 6.12.34 , ≤ 6.12.* (semver)
Unaffected: 6.15.3 , ≤ 6.15.* (semver)
Unaffected: 6.16 , ≤ * (original_commit_for_fix)
Create a notification for this product.
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Si el primer campo no cubre todo el mapa inicial, debemos poner a cero el resto; de lo contrario, filtraremos esos bits al mapa de la siguiente ronda de coincidencia. La correcci\u00f3n inicial estaba incompleta y solo corrigi\u00f3 la implementaci\u00f3n gen\u00e9rica de C. Un parche posterior a\u00f1ade un caso de prueba a 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    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-07-30T09:22:59+00:00",
      "cve": "CVE-2025-38120",
      "id": "CVE-2025-38120",
      "initial_release_date": "2025-07-03T00:00:00+00:00",
      "product_status:known_affected": "184",
      "product_status:known_not_affected": "90",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: netfilter: nf_set_pipapo_avx2: fix initial map fill",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-38120.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-07-16T18:43:39Z",
      "cve": "CVE-2025-38120",
      "id": "CVE-2025-38120",
      "initial_release_date": "2025-07-03T23:23:32Z",
      "product_status:first_fixed": "2",
      "product_status:known_not_affected": "198",
      "product_status:recommended": "731",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2025-38120",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2025-38120.json",
      "version": "44"
    }
  }
}



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Taxonomy of the tags.





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.