CVE-2024-42145 (GCVE-0-2024-42145)

Vulnerability from cvelistv5 – Published: 2024-07-30 07:46 – Updated: 2026-05-11 20:27
VLAI
Title
IB/core: Implement a limit on UMAD receive List
Summary
In the Linux kernel, the following vulnerability has been resolved: IB/core: Implement a limit on UMAD receive List The existing behavior of ib_umad, which maintains received MAD packets in an unbounded list, poses a risk of uncontrolled growth. As user-space applications extract packets from this list, the rate of extraction may not match the rate of incoming packets, leading to potential list overflow. To address this, we introduce a limit to the size of the list. After considering typical scenarios, such as OpenSM processing, which can handle approximately 100k packets per second, and the 1-second retry timeout for most packets, we set the list size limit to 200k. Packets received beyond this limit are dropped, assuming they are likely timed out by the time they are handled by user-space. Notably, packets queued on the receive list due to reasons like timed-out sends are preserved even when the list is full.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 1288cf1cceb0e6df276e182f5412370fb4169bcb (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < b4913702419d064ec4c4bbf7270643c95cc89a1b (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 62349fbf86b5e13b02721bdadf98c29afd1e7b5f (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < d73cb8862e4d6760ccc94d3b57b9ef6271400607 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 63d202d948bb6d3a28cd8e8b96b160fa53e18baa (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < b8c5f635997f49c625178d1a0cb32a80ed33abe6 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < a6627fba793cc75b7365d9504a0095fb2902dda4 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < ca0b44e20a6f3032224599f02e7c8fb49525c894 (git)
Create a notification for this product.
Linux Linux Affected: 2.6.12
Unaffected: 0 , < 2.6.12 (semver)
Unaffected: 4.19.318 , ≤ 4.19.* (semver)
Unaffected: 5.4.280 , ≤ 5.4.* (semver)
Unaffected: 5.10.222 , ≤ 5.10.* (semver)
Unaffected: 5.15.163 , ≤ 5.15.* (semver)
Unaffected: 6.1.98 , ≤ 6.1.* (semver)
Unaffected: 6.6.39 , ≤ 6.6.* (semver)
Unaffected: 6.9.9 , ≤ 6.9.* (semver)
Unaffected: 6.10 , ≤ * (original_commit_for_fix)
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      "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "vulnStatus": "Analyzed",
      "weaknesses": "[{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-770\"}]}]"
    },
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Packets\\nreceived beyond this limit are dropped, assuming they are likely timed\\nout by the time they are handled by user-space.\\n\\nNotably, packets queued on the receive list due to reasons like\\ntimed-out sends are preserved even when the list is full.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: IB/core: implementar un l\u00edmite en la lista de recepci\u00f3n de UMAD El comportamiento existente de ib_umad, que mantiene los paquetes MAD recibidos en una lista ilimitada, plantea un riesgo de crecimiento incontrolado. A medida que las aplicaciones del espacio de usuario extraen paquetes de esta lista, es posible que la tasa de extracci\u00f3n no coincida con la tasa de paquetes entrantes, lo que puede provocar un posible desbordamiento de la lista. Para solucionar esto, introducimos un l\u00edmite al tama\u00f1o de la lista. Despu\u00e9s de considerar escenarios t\u00edpicos, como el procesamiento OpenSM, que puede manejar aproximadamente 100 000 paquetes por segundo, y el tiempo de espera de reintento de 1 segundo para la mayor\u00eda de los paquetes, establecemos el l\u00edmite de tama\u00f1o de la lista en 200 000. Los paquetes recibidos m\u00e1s all\u00e1 de este l\u00edmite se descartan, suponiendo que probablemente se agote el tiempo de espera cuando sean manejados por el espacio de usuario. En particular, los paquetes en cola en la lista de recepci\u00f3n debido a motivos como el tiempo de espera de env\u00edo se conservan incluso cuando la lista est\u00e1 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      "cveMetadata": "{\"cveId\": \"CVE-2024-42145\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-01-05T10:52:01.255Z\", \"dateReserved\": \"2024-07-29T15:50:41.190Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-07-30T07:46:38.650Z\", \"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

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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.