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CVE-2024-43890 (GCVE-0-2024-43890)

Vulnerability from cvelistv5 – Published: 2024-08-26 10:10 – Updated: 2026-05-12 11:57
VLAI
Title
tracing: Fix overflow in get_free_elt()
Summary
In the Linux kernel, the following vulnerability has been resolved: tracing: Fix overflow in get_free_elt() "tracing_map->next_elt" in get_free_elt() is at risk of overflowing. Once it overflows, new elements can still be inserted into the tracing_map even though the maximum number of elements (`max_elts`) has been reached. Continuing to insert elements after the overflow could result in the tracing_map containing "tracing_map->max_size" elements, leaving no empty entries. If any attempt is made to insert an element into a full tracing_map using `__tracing_map_insert()`, it will cause an infinite loop with preemption disabled, leading to a CPU hang problem. Fix this by preventing any further increments to "tracing_map->next_elt" once it reaches "tracing_map->max_elt".
Severity
No CVSS data available.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-09-10 15:29 UTC
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 08d43a5fa063e03c860f2f391a30c388bcbc948e , < 302ceb625d7b990db205a15e371f9a71238de91c (git)
Affected: 08d43a5fa063e03c860f2f391a30c388bcbc948e , < d3e4dbc2858fe85d1dbd2e72a9fc5dea988b5c18 (git)
Affected: 08d43a5fa063e03c860f2f391a30c388bcbc948e , < eb223bf01e688dfe37e813c8988ee11c8c9f8d0a (git)
Affected: 08d43a5fa063e03c860f2f391a30c388bcbc948e , < cd10d186a5409a1fe6e976df82858e9773a698da (git)
Affected: 08d43a5fa063e03c860f2f391a30c388bcbc948e , < 788ea62499b3c18541fd6d621964d8fafbc4aec5 (git)
Affected: 08d43a5fa063e03c860f2f391a30c388bcbc948e , < a172c7b22bc2feaf489cfc6d6865f7237134fdf8 (git)
Affected: 08d43a5fa063e03c860f2f391a30c388bcbc948e , < 236bb4690773ab6869b40bedc7bc8d889e36f9d6 (git)
Affected: 08d43a5fa063e03c860f2f391a30c388bcbc948e , < bcf86c01ca4676316557dd482c8416ece8c2e143 (git)
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Linux Linux Affected: 4.7
Unaffected: 0 , < 4.7 (semver)
Unaffected: 4.19.320 , ≤ 4.19.* (semver)
Unaffected: 5.4.282 , ≤ 5.4.* (semver)
Unaffected: 5.10.224 , ≤ 5.10.* (semver)
Unaffected: 5.15.165 , ≤ 5.15.* (semver)
Unaffected: 6.1.105 , ≤ 6.1.* (semver)
Unaffected: 6.6.46 , ≤ 6.6.* (semver)
Unaffected: 6.10.5 , ≤ 6.10.* (semver)
Unaffected: 6.11 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Siemens RUGGEDCOM RST2428P Affected: 0 , < V3.1 (custom)
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Siemens RUGGEDCOM RST2428P Unaffected: 0 , < * (custom)
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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)
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Siemens SCALANCE XCM-/XRM-/XCH-/XRH-300 family Unaffected: 0 , < * (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.
Show details on NVD website
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      "current_release_date": "2026-02-18T01:15:58.000Z",
      "cve": "CVE-2024-43890",
      "id": "msrc_CVE-2024-43890",
      "initial_release_date": "2024-08-02T00:00:00.000Z",
      "product_status:fixed": "3",
      "product_status:known_affected": "3",
      "source": "Microsoft CSAF VEX",
      "status": "final",
      "title": "tracing: Fix overflow in get_free_elt()",
      "url": "https://msrc.microsoft.com/csaf/vex/2024/msrc_cve-2024-43890.json",
      "version": "2"
    },
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Una vez que se desborda, a\u00fan se pueden insertar nuevos elementos en tracing_map aunque se haya alcanzado el n\u00famero m\u00e1ximo de elementos (`max_elts`). Continuar insertando elementos despu\u00e9s del desbordamiento podr\u00eda dar como resultado que tracing_map contenga elementos \\\"tracing_map-\u0026gt;max_size\\\", sin dejar entradas vac\u00edas. Si se intenta insertar un elemento en un tracing_map completo usando `__tracing_map_insert()`, se producir\u00e1 un bucle infinito con la preferencia deshabilitada, lo que provocar\u00e1 un problema de bloqueo de la CPU. Solucione este problema evitando incrementos adicionales en \\\"tracing_map-\u0026gt;next_elt\\\" una vez que llegue a \\\"tracing_map-\u0026gt;max_elt\\\".\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"kernel/trace/tracing_map.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"08d43a5fa063e03c860f2f391a30c388bcbc948e\",\"lessThan\":\"302ceb625d7b990db205a15e371f9a71238de91c\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"08d43a5fa063e03c860f2f391a30c388bcbc948e\",\"lessThan\":\"d3e4dbc2858fe85d1dbd2e72a9fc5dea988b5c18\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"08d43a5fa063e03c860f2f391a30c388bcbc948e\",\"lessThan\":\"eb223bf01e688dfe37e813c8988ee11c8c9f8d0a\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"08d43a5fa063e03c860f2f391a30c388bcbc948e\",\"lessThan\":\"cd10d186a5409a1fe6e976df82858e9773a698da\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"08d43a5fa063e03c860f2f391a30c388bcbc948e\",\"lessThan\":\"788ea62499b3c18541fd6d621964d8fafbc4aec5\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"08d43a5fa063e03c860f2f391a30c388bcbc948e\",\"lessThan\":\"a172c7b22bc2feaf489cfc6d6865f7237134fdf8\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"08d43a5fa063e03c860f2f391a30c388bcbc948e\",\"lessThan\":\"236bb4690773ab6869b40bedc7bc8d889e36f9d6\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"08d43a5fa063e03c860f2f391a30c388bcbc948e\",\"lessThan\":\"bcf86c01ca4676316557dd482c8416ece8c2e143\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"kernel/trace/tracing_map.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"4.7\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"4.7\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"4.19.320\",\"lessThanOrEqual\":\"4.19.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.4.282\",\"lessThanOrEqual\":\"5.4.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.10.224\",\"lessThanOrEqual\":\"5.10.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.15.165\",\"lessThanOrEqual\":\"5.15.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.1.105\",\"lessThanOrEqual\":\"6.1.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.6.46\",\"lessThanOrEqual\":\"6.6.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.10.5\",\"lessThanOrEqual\":\"6.10.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.11\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]},{\"source\":\"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e\",\"affectedData\":[{\"vendor\":\"Siemens\",\"product\":\"RUGGEDCOM RST2428P\",\"defaultStatus\":\"unknown\",\"versions\":[{\"version\":\"0\",\"lessThan\":\"V3.1\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"Siemens\",\"product\":\"RUGGEDCOM RST2428P\",\"defaultStatus\":\"unknown\",\"versions\":[{\"version\":\"0\",\"lessThan\":\"*\",\"versionType\":\"custom\",\"status\":\"unaffected\"}]},{\"vendor\":\"Siemens\",\"product\":\"SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family\",\"defaultStatus\":\"unknown\",\"versions\":[{\"version\":\"0\",\"lessThan\":\"*\",\"versionType\":\"custom\",\"status\":\"unaffected\"}]},{\"vendor\":\"Siemens\",\"product\":\"SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family\",\"defaultStatus\":\"unknown\",\"versions\":[{\"version\":\"0\",\"lessThan\":\"*\",\"versionType\":\"custom\",\"status\":\"unaffected\"}]},{\"vendor\":\"Siemens\",\"product\":\"SCALANCE XCM-/XRM-/XCH-/XRH-300 family\",\"defaultStatus\":\"unknown\",\"versions\":[{\"version\":\"0\",\"lessThan\":\"V3.1\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"Siemens\",\"product\":\"SCALANCE XCM-/XRM-/XCH-/XRH-300 family\",\"defaultStatus\":\"unknown\",\"versions\":[{\"version\":\"0\",\"lessThan\":\"*\",\"versionType\":\"custom\",\"status\":\"unaffected\"}]},{\"vendor\":\"Siemens\",\"product\":\"SIMATIC S7-1500 TM MFP - 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      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: tracing: Fix overflow in get_free_elt()",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2024/cve-2024-43890.json",
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      "product_status:recommended": "710",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2024-43890",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2024-43890.json",
      "version": "81"
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\"lessThanOrEqual\": \"4.19.*\"}, {\"status\": \"unaffected\", \"version\": \"5.4.282\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.4.*\"}, {\"status\": \"unaffected\", \"version\": \"5.10.224\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.15.165\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"6.1.105\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.1.*\"}, {\"status\": \"unaffected\", \"version\": \"6.6.46\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.6.*\"}, {\"status\": \"unaffected\", \"version\": \"6.10.5\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.10.*\"}, {\"status\": \"unaffected\", \"version\": \"6.11\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"kernel/trace/tracing_map.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/302ceb625d7b990db205a15e371f9a71238de91c\"}, {\"url\": \"https://git.kernel.org/stable/c/d3e4dbc2858fe85d1dbd2e72a9fc5dea988b5c18\"}, {\"url\": \"https://git.kernel.org/stable/c/eb223bf01e688dfe37e813c8988ee11c8c9f8d0a\"}, {\"url\": \"https://git.kernel.org/stable/c/cd10d186a5409a1fe6e976df82858e9773a698da\"}, {\"url\": \"https://git.kernel.org/stable/c/788ea62499b3c18541fd6d621964d8fafbc4aec5\"}, {\"url\": \"https://git.kernel.org/stable/c/a172c7b22bc2feaf489cfc6d6865f7237134fdf8\"}, {\"url\": \"https://git.kernel.org/stable/c/236bb4690773ab6869b40bedc7bc8d889e36f9d6\"}, {\"url\": \"https://git.kernel.org/stable/c/bcf86c01ca4676316557dd482c8416ece8c2e143\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\ntracing: Fix overflow in get_free_elt()\\n\\n\\\"tracing_map-\u003enext_elt\\\" in get_free_elt() is at risk of overflowing.\\n\\nOnce it overflows, new elements can still be inserted into the tracing_map\\neven though the maximum number of elements (`max_elts`) has been reached.\\nContinuing to insert elements after the overflow could result in the\\ntracing_map containing \\\"tracing_map-\u003emax_size\\\" elements, leaving no empty\\nentries.\\nIf any attempt is made to insert an element into a full tracing_map using\\n`__tracing_map_insert()`, it will cause an infinite loop with preemption\\ndisabled, leading to a CPU hang problem.\\n\\nFix this by preventing any further increments to \\\"tracing_map-\u003enext_elt\\\"\\nonce it reaches \\\"tracing_map-\u003emax_elt\\\".\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.19.320\", \"versionStartIncluding\": \"4.7\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.4.282\", \"versionStartIncluding\": \"4.7\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.224\", \"versionStartIncluding\": \"4.7\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.165\", \"versionStartIncluding\": \"4.7\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.105\", \"versionStartIncluding\": \"4.7\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.46\", \"versionStartIncluding\": \"4.7\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.10.5\", \"versionStartIncluding\": \"4.7\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.11\", \"versionStartIncluding\": \"4.7\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2026-05-11T20:31:47.785Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-43890\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-05-11T20:31:47.785Z\", \"dateReserved\": \"2024-08-17T09:11:59.289Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-08-26T10:10:43.547Z\", \"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.