CVE-2024-26910 (GCVE-0-2024-26910)

Vulnerability from cvelistv5 – Published: 2024-04-17 15:59 – Updated: 2026-05-23 15:39
VLAI
Title
netfilter: ipset: fix performance regression in swap operation
Summary
In the Linux kernel, the following vulnerability has been resolved: netfilter: ipset: fix performance regression in swap operation The patch "netfilter: ipset: fix race condition between swap/destroy and kernel side add/del/test", commit 28628fa9 fixes a race condition. But the synchronize_rcu() added to the swap function unnecessarily slows it down: it can safely be moved to destroy and use call_rcu() instead. Eric Dumazet pointed out that simply calling the destroy functions as rcu callback does not work: sets with timeout use garbage collectors which need cancelling at destroy which can wait. Therefore the destroy functions are split into two: cancelling garbage collectors safely at executing the command received by netlink and moving the remaining part only into the rcu callback.
Severity
No CVSS data available.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 427deb5ba5661c4ae1cfb35955d2e01bd5f3090a , < c7f2733e5011bfd136f1ca93497394d43aa76225 (git)
Affected: e7152a138a5ac77439ff4e7a7533448a7d4c260d , < a24d5f2ac8ef702a58e55ec276aad29b4bd97e05 (git)
Affected: 8bb930c3a1eacec1b14817f565ff81667c7c5dfa , < c2dc077d8f722a1c73a24e674f925602ee5ece49 (git)
Affected: 875ee3a09e27b7adb7006ca6d16faf7f33415aa5 , < 653bc5e6d9995d7d5f497c665b321875a626161c (git)
Affected: 23c31036f862582f98386120aee55c9ae23d7899 , < b93a6756a01f4fd2f329a39216f9824c56a66397 (git)
Affected: 28628fa952fefc7f2072ce6e8016968cc452b1ba , < 970709a67696b100a57b33af1a3d75fc34b747eb (git)
Affected: 28628fa952fefc7f2072ce6e8016968cc452b1ba , < 97f7cf1cd80eeed3b7c808b7c12463295c751001 (git)
Affected: a12606e5ad0cee8f4ba3ec68561c4d6275d2df57 (git)
Affected: 5.4.264 , < 5.4.269 (semver)
Affected: 5.10.204 , < 5.10.210 (semver)
Affected: 5.15.143 , < 5.15.149 (semver)
Affected: 6.1.68 , < 6.1.79 (semver)
Affected: 6.6.7 , < 6.6.18 (semver)
Affected: 4.19.302 , < 4.20 (semver)
Create a notification for this product.
Linux Linux Affected: 6.7
Unaffected: 0 , < 6.7 (semver)
Unaffected: 5.4.269 , ≤ 5.4.* (semver)
Unaffected: 5.10.210 , ≤ 5.10.* (semver)
Unaffected: 5.15.149 , ≤ 5.15.* (semver)
Unaffected: 6.1.79 , ≤ 6.1.* (semver)
Unaffected: 6.6.18 , ≤ 6.6.* (semver)
Unaffected: 6.7.6 , ≤ 6.7.* (semver)
Unaffected: 6.8 , ≤ * (original_commit_for_fix)
Create a notification for this product.
Show details on NVD website
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Therefore the destroy\\nfunctions are split into two: cancelling garbage collectors safely at\\nexecuting the command received by netlink and moving the remaining\\npart only into the rcu callback.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: netfilter: ipset: corrige la regresi\u00f3n de rendimiento en la operaci\u00f3n de intercambio El parche \\\"netfilter: ipset: corrige la condici\u00f3n de ejecuci\u00f3n entre swap/destroy y add/del/test del lado del kernel\\\", commit 28628fa9 corrige un condici\u00f3n de ejecuci\u00f3n. Pero elsync_rcu() agregado a la funci\u00f3n swap la ralentiza innecesariamente: se puede mover con seguridad para destruir y usar call_rcu() en su lugar. Eric Dumazet se\u00f1al\u00f3 que simplemente llamar a las funciones de destrucci\u00f3n como devoluci\u00f3n de llamada de rcu no funciona: los conjuntos con tiempo de espera usan recolectores de basura que necesitan cancelarse en la destrucci\u00f3n y que pueden esperar. Por lo tanto, las funciones de destrucci\u00f3n se dividen en dos: cancelar los recolectores de basura de forma segura al ejecutar el comando recibido por netlink y mover la parte restante solo a la devoluci\u00f3n de llamada de 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      "product_status:known_affected": "42",
      "product_status:known_not_affected": "156",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: netfilter: ipset: fix performance regression in swap operation",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2024/cve-2024-26910.json",
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      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2024-26910",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2024-26910.json",
      "version": "17"
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\"6.1.79\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.1.*\"}, {\"status\": \"unaffected\", \"version\": \"6.6.18\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.6.*\"}, {\"status\": \"unaffected\", \"version\": \"6.7.6\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.7.*\"}, {\"status\": \"unaffected\", \"version\": \"6.8\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"include/linux/netfilter/ipset/ip_set.h\", \"net/netfilter/ipset/ip_set_bitmap_gen.h\", \"net/netfilter/ipset/ip_set_core.c\", \"net/netfilter/ipset/ip_set_hash_gen.h\", \"net/netfilter/ipset/ip_set_list_set.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/c7f2733e5011bfd136f1ca93497394d43aa76225\"}, {\"url\": \"https://git.kernel.org/stable/c/a24d5f2ac8ef702a58e55ec276aad29b4bd97e05\"}, {\"url\": \"https://git.kernel.org/stable/c/c2dc077d8f722a1c73a24e674f925602ee5ece49\"}, {\"url\": \"https://git.kernel.org/stable/c/653bc5e6d9995d7d5f497c665b321875a626161c\"}, {\"url\": \"https://git.kernel.org/stable/c/b93a6756a01f4fd2f329a39216f9824c56a66397\"}, {\"url\": \"https://git.kernel.org/stable/c/970709a67696b100a57b33af1a3d75fc34b747eb\"}, {\"url\": \"https://git.kernel.org/stable/c/97f7cf1cd80eeed3b7c808b7c12463295c751001\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nnetfilter: ipset: fix performance regression in swap operation\\n\\nThe patch \\\"netfilter: ipset: fix race condition between swap/destroy\\nand kernel side add/del/test\\\", commit 28628fa9 fixes a race condition.\\nBut the synchronize_rcu() added to the swap function unnecessarily slows\\nit down: it can safely be moved to destroy and use call_rcu() instead.\\n\\nEric Dumazet pointed out that simply calling the destroy functions as\\nrcu callback does not work: sets with timeout use garbage collectors\\nwhich need cancelling at destroy which can wait. Therefore the destroy\\nfunctions are split into two: cancelling garbage collectors safely at\\nexecuting the command received by netlink and moving the remaining\\npart only into the rcu callback.\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.4.269\", \"versionStartIncluding\": \"5.4.264\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.210\", \"versionStartIncluding\": \"5.10.204\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.149\", \"versionStartIncluding\": \"5.15.143\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.79\", \"versionStartIncluding\": \"6.1.68\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.18\", \"versionStartIncluding\": \"6.6.7\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.7.6\", \"versionStartIncluding\": \"6.7\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.8\", \"versionStartIncluding\": \"6.7\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionStartIncluding\": \"4.19.302\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2026-05-23T15:39:51.569Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-26910\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-05-23T15:39:51.569Z\", \"dateReserved\": \"2024-02-19T14:20:24.188Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-04-17T15:59:21.967Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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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.