CVE-2024-26643 (GCVE-0-2024-26643)

Vulnerability from cvelistv5 – Published: 2024-03-21 10:43 – Updated: 2026-05-12 11:49
VLAI?
Title
netfilter: nf_tables: mark set as dead when unbinding anonymous set with timeout
Summary
In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: mark set as dead when unbinding anonymous set with timeout While the rhashtable set gc runs asynchronously, a race allows it to collect elements from anonymous sets with timeouts while it is being released from the commit path. Mingi Cho originally reported this issue in a different path in 6.1.x with a pipapo set with low timeouts which is not possible upstream since 7395dfacfff6 ("netfilter: nf_tables: use timestamp to check for set element timeout"). Fix this by setting on the dead flag for anonymous sets to skip async gc in this case. According to 08e4c8c5919f ("netfilter: nf_tables: mark newset as dead on transaction abort"), Florian plans to accelerate abort path by releasing objects via workqueue, therefore, this sets on the dead flag for abort path too.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 8da1b048f9a501d3d7d38c188ba09d7d0d5b8c27 , < d75a589bb92af1abf3b779cfcd1977ca11b27033 (git)
Affected: bbdb3b65aa91aa0a32b212f27780b28987f2d94f , < edcf1a3f182ecf8b6b805f0ce90570ea98c5f6bf (git)
Affected: 448be0774882f95a74fa5eb7519761152add601b , < e2d45f467096e931044f0ab7634499879d851a5c (git)
Affected: d19e8bf3ea4114dd21fc35da21f398203d7f7df1 , < 291cca35818bd52a407bc37ab45a15816039e363 (git)
Affected: ea3eb9f2192e4fc33b795673e56c97a21987f868 , < 406b0241d0eb598a0b330ab20ae325537d8d8163 (git)
Affected: 5f68718b34a531a556f2f50300ead2862278da26 , < b2d6f9a5b1cf968f1eaa71085ceeb09c2cb276b1 (git)
Affected: 5f68718b34a531a556f2f50300ead2862278da26 , < 5224afbc30c3ca9ba23e752f0f138729b2c48dd8 (git)
Affected: 5f68718b34a531a556f2f50300ead2862278da26 , < 552705a3650bbf46a22b1adedc1b04181490fc36 (git)
Affected: 0624f190b5742a1527cd938295caa8dc5281d4cd (git)
Create a notification for this product.
Linux Linux Affected: 6.5
Unaffected: 0 , < 6.5 (semver)
Unaffected: 5.4.274 , ≤ 5.4.* (semver)
Unaffected: 5.10.215 , ≤ 5.10.* (semver)
Unaffected: 5.15.154 , ≤ 5.15.* (semver)
Unaffected: 6.1.84 , ≤ 6.1.* (semver)
Unaffected: 6.6.24 , ≤ 6.6.* (semver)
Unaffected: 6.7.12 , ≤ 6.7.* (semver)
Unaffected: 6.8 , ≤ * (original_commit_for_fix)
Create a notification for this product.
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Mientras que el conjunto rhashtable gc se ejecuta de forma as\u00edncrona, una ejecuci\u00f3n le permite recopilar elementos de conjuntos an\u00f3nimos con tiempos de espera mientras se libera de la ruta de confirmaci\u00f3n. Mingi Cho inform\u00f3 originalmente este problema en una ruta diferente en 6.1.x con un pipapo configurado con tiempos de espera bajos, lo cual no es posible en sentido ascendente desde 7395dfacfff6 (\\\"netfilter: nf_tables: use la marca de tiempo para verificar el tiempo de espera del elemento establecido\\\"). Solucione este problema configurando la bandera muerta para que los conjuntos an\u00f3nimos omitan el gc as\u00edncrono en este caso. Seg\u00fan 08e4c8c5919f (\\\"netfilter: nf_tables: marcar el nuevo conjunto como muerto al cancelar la transacci\u00f3n\\\"), Florian planea acelerar la ruta de cancelaci\u00f3n liberando objetos a trav\u00e9s de la cola de trabajo, por lo tanto, esto tambi\u00e9n activa la bandera muerta para la ruta de 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      "cveMetadata": "{\"cveId\": \"CVE-2024-26643\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-05-11T20:01:22.325Z\", \"dateReserved\": \"2024-02-19T14:20:24.137Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-03-21T10:43:44.103Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


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Tags
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.