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CVE-2024-56660

Estado: ModificadaMedia (5.5)—

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

net/mlx5: DR, prevent potential error pointer dereference

The dr_domain_add_vport_cap() function generally returns NULL on error but sometimes we want it to return ERR_PTR(-EBUSY) so the caller can retry. The problem here is that "ret" can be either -EBUSY or -ENOMEM and if it's and -ENOMEM then the error pointer is propogated back and eventually dereferenced in dr_ste_v0_build_src_gvmi_qpn_tag().

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)

Mostrar
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      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/mlx5: DR, prevent potential error pointer dereference\n\nThe dr_domain_add_vport_cap() function generally returns NULL on error\nbut sometimes we want it to return ERR_PTR(-EBUSY) so the caller can\nretry.  The problem here is that \"ret\" can be either -EBUSY or -ENOMEM\nand if it's and -ENOMEM then the error pointer is propogated back and\neventually dereferenced in dr_ste_v0_build_src_gvmi_qpn_tag()."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net/mlx5: DR, evitar la posible desreferencia del puntero de error La función dr_domain_add_vport_cap() generalmente devuelve NULL en caso de error, pero a veces queremos que devuelva ERR_PTR(-EBUSY) para que el autor de la llamada pueda volver a intentarlo. El problema aquí es que \"ret\" puede ser -EBUSY o -ENOMEM y si es y -ENOMEM, entonces el puntero de error se propaga de vuelta y finalmente se desreferencia en dr_ste_v0_build_src_gvmi_qpn_tag()."
    }
  ],
  "lastModified": "2026-06-17T08:12:40.677",
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