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CVE-2024-53122

Estado: ModificadaMedia (5.5)—

In the Linux kernel, the following vulnerability has been resolved:

mptcp: cope racing subflow creation in mptcp_rcv_space_adjust

Additional active subflows - i.e. created by the in kernel path manager - are included into the subflow list before starting the 3whs.

A racing recvmsg() spooling data received on an already established subflow would unconditionally call tcp_cleanup_rbuf() on all the current subflows, potentially hitting a divide by zero error on the newly created ones.

Explicitly check that the subflow is in a suitable state before invoking tcp_cleanup_rbuf().

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

Linux — Linux Kernel

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2024-53122",
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          "value": "CWE-362"
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      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmptcp: cope racing subflow creation in mptcp_rcv_space_adjust\n\nAdditional active subflows - i.e. created by the in kernel path\nmanager - are included into the subflow list before starting the\n3whs.\n\nA racing recvmsg() spooling data received on an already established\nsubflow would unconditionally call tcp_cleanup_rbuf() on all the\ncurrent subflows, potentially hitting a divide by zero error on\nthe newly created ones.\n\nExplicitly check that the subflow is in a suitable state before\ninvoking tcp_cleanup_rbuf()."
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      "value": " En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: mptcp: creación de subflujo de ejecución en mptcp_rcv_space_adjust Los subflujos activos adicionales (es decir, creados por el administrador de rutas en el kernel) se incluyen en la lista de subflujos antes de iniciar 3whs. Un recvmsg() de ejecución que pone en cola los datos recibidos en un subflujo ya establecido llamaría incondicionalmente a tcp_cleanup_rbuf() en todos los subflujos actuales, lo que podría provocar un error de división por cero en los recién creados. Verifique explícitamente que el subflujo esté en un estado adecuado antes de invocar tcp_cleanup_rbuf()."
    }
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  "lastModified": "2026-08-04T11:21:55.860",
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