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CVE-2024-38662 (GCVE-0-2024-38662)

Vulnerability from cvelistv5 – Published: 2024-06-21 11:15 – Updated: 2026-05-23 15:49
VLAI
Title
bpf: Allow delete from sockmap/sockhash only if update is allowed
Summary
In the Linux kernel, the following vulnerability has been resolved: bpf: Allow delete from sockmap/sockhash only if update is allowed We have seen an influx of syzkaller reports where a BPF program attached to a tracepoint triggers a locking rule violation by performing a map_delete on a sockmap/sockhash. We don't intend to support this artificial use scenario. Extend the existing verifier allowed-program-type check for updating sockmap/sockhash to also cover deleting from a map. From now on only BPF programs which were previously allowed to update sockmap/sockhash can delete from these map types.
Severity
No CVSS data available.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-06-21 13:43 UTC
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: dd54b48db0c822ae7b520bc80751f0a0a173ef75 , < 29467edc23818dc5a33042ffb4920b49b090e63d (git)
Affected: d1e73fb19a4c872d7a399ad3c66e8ca30e0875ec , < 11e8ecc5b86037fec43d07b1c162e233e131b1d9 (git)
Affected: a44770fed86515eedb5a7c00b787f847ebb134a5 , < 6693b172f008846811f48a099f33effc26068e1e (git)
Affected: 668b3074aa14829e2ac2759799537a93b60fef86 , < 000a65bf1dc04fb2b65e2abf116f0bc0fc2ee7b1 (git)
Affected: ff91059932401894e6c86341915615c5eb0eca48 , < b81e1c5a3c70398cf76631ede63a03616ed1ba3c (git)
Affected: ff91059932401894e6c86341915615c5eb0eca48 , < 98e948fb60d41447fd8d2d0c3b8637fc6b6dc26d (git)
Affected: f7990498b05ac41f7d6a190dc0418ef1d21bf058 (git)
Affected: 6af057ccdd8e7619960aca1f0428339f213b31cd (git)
Affected: 5.10.215 , < 5.10.219 (semver)
Affected: 5.15.154 , < 5.15.161 (semver)
Affected: 6.1.85 , < 6.1.93 (semver)
Affected: 6.6.26 , < 6.6.33 (semver)
Affected: 5.4.274 , < 5.5 (semver)
Affected: 6.8.5 , < 6.9 (semver)
guessed Create a notification for this product.
Linux Linux Affected: 6.9
Unaffected: 0 , < 6.9 (semver)
Unaffected: 5.10.219 , ≤ 5.10.* (semver)
Unaffected: 5.15.161 , ≤ 5.15.* (semver)
Unaffected: 6.1.93 , ≤ 6.1.* (semver)
Unaffected: 6.6.33 , ≤ 6.6.* (semver)
Unaffected: 6.9.4 , ≤ 6.9.* (semver)
Unaffected: 6.10 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Siemens RUGGEDCOM RST2428P Affected: 0 , < V3.1 (custom)
guessed Create a notification for this product.
Siemens SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family Unaffected: 0 , < * (custom)
guessed Create a notification for this product.
Siemens SCALANCE XCM-/XRM-/XCH-/XRH-300 family Affected: 0 , < V3.1 (custom)
guessed Create a notification for this product.
Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem Affected: 0 , < * (custom)
guessed Create a notification for this product.
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      "cve": "CVE-2024-38662",
      "id": "msrc_CVE-2024-38662",
      "initial_release_date": "2024-06-02T07:00:00.000Z",
      "product_status:fixed": "5",
      "product_status:known_affected": "5",
      "source": "Microsoft CSAF VEX",
      "status": "final",
      "title": "bpf: Allow delete from sockmap/sockhash only if update is allowed",
      "url": "https://msrc.microsoft.com/csaf/vex/2024/msrc_cve-2024-38662.json",
      "version": "3"
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Extend the\\nexisting verifier allowed-program-type check for updating sockmap/sockhash\\nto also cover deleting from a map.\\n\\nFrom now on only BPF programs which were previously allowed to update\\nsockmap/sockhash can delete from these map types.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: bpf: permitir la eliminaci\u00f3n de sockmap/sockhash solo si se permite la actualizaci\u00f3n. Hemos visto una afluencia de informes de syzkaller donde un programa BPF adjunto a un punto de seguimiento desencadena una violaci\u00f3n de la regla de bloqueo al realizar un map_delete en un mapa de calcetines/sockhash. No pretendemos apoyar este escenario de uso artificial. Ampl\u00ede la verificaci\u00f3n de tipo de programa permitido del verificador existente para actualizar sockmap/sockhash para cubrir tambi\u00e9n la eliminaci\u00f3n de un mapa. 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      "product_status:known_not_affected": "198",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: bpf: Allow delete from sockmap/sockhash only if update is allowed",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2024/cve-2024-38662.json",
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      "product_status:known_not_affected": "107",
      "product_status:recommended": "713",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2024-38662",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2024-38662.json",
      "version": "116"
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\"semver\"}], \"programFiles\": [\"kernel/bpf/verifier.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"6.9\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"6.9\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"5.10.219\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.15.161\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"6.1.93\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.1.*\"}, {\"status\": \"unaffected\", \"version\": \"6.6.33\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.6.*\"}, {\"status\": \"unaffected\", \"version\": \"6.9.4\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.9.*\"}, {\"status\": \"unaffected\", \"version\": \"6.10\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"kernel/bpf/verifier.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/29467edc23818dc5a33042ffb4920b49b090e63d\"}, {\"url\": \"https://git.kernel.org/stable/c/11e8ecc5b86037fec43d07b1c162e233e131b1d9\"}, {\"url\": \"https://git.kernel.org/stable/c/6693b172f008846811f48a099f33effc26068e1e\"}, {\"url\": \"https://git.kernel.org/stable/c/000a65bf1dc04fb2b65e2abf116f0bc0fc2ee7b1\"}, {\"url\": \"https://git.kernel.org/stable/c/b81e1c5a3c70398cf76631ede63a03616ed1ba3c\"}, {\"url\": \"https://git.kernel.org/stable/c/98e948fb60d41447fd8d2d0c3b8637fc6b6dc26d\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nbpf: Allow delete from sockmap/sockhash only if update is allowed\\n\\nWe have seen an influx of syzkaller reports where a BPF program attached to\\na tracepoint triggers a locking rule violation by performing a map_delete\\non a sockmap/sockhash.\\n\\nWe don\u0027t intend to support this artificial use scenario. Extend the\\nexisting verifier allowed-program-type check for updating sockmap/sockhash\\nto also cover deleting from a map.\\n\\nFrom now on only BPF programs which were previously allowed to update\\nsockmap/sockhash can delete from these map types.\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.219\", \"versionStartIncluding\": \"5.10.215\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.161\", \"versionStartIncluding\": \"5.15.154\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.93\", \"versionStartIncluding\": \"6.1.85\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.33\", \"versionStartIncluding\": \"6.6.26\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.9.4\", \"versionStartIncluding\": \"6.9\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.10\", \"versionStartIncluding\": \"6.9\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionStartIncluding\": \"5.4.274\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionStartIncluding\": \"6.8.5\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2026-05-23T15:49:46.800Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-38662\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-05-23T15:49:46.800Z\", \"dateReserved\": \"2024-06-21T10:12:11.509Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-06-21T11:15:12.202Z\", \"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.


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.