CVE-2026-23164
Estado: AnalizadaMedia (5.5)—
In the Linux kernel, the following vulnerability has been resolved:
rocker: fix memory leak in rocker_world_port_post_fini()
In rocker_world_port_pre_init(), rocker_port->wpriv is allocated with kzalloc(wops->port_priv_size, GFP_KERNEL). However, in rocker_world_port_post_fini(), the memory is only freed when wops->port_post_fini callback is set:
Since rocker_ofdpa_ops does not implement port_post_fini callback (it is NULL), the wpriv memory allocated for each port is never freed when ports are removed. This leads to a memory leak of sizeof(struct ofdpa_port) bytes per port on every device removal.
Leer descripción completaMostrar menos
Fix this by always calling kfree(rocker_port->wpriv) regardless of whether the port_post_fini callback exists.
Detalles técnicos trazas, registros y código del informe original
if (!wops->port_post_fini)
return;
wops->port_post_fini(rocker_port);
kfree(rocker_port->wpriv);CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Puntuación base: 5.5
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.12%
- Percentil entre todas las CVEs puntuadas: 2
- Fecha de la puntuación: 6/10/2026
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)
CWE
- CWE-401
Referencias
- https://git.kernel.org/stable/c/2a3a64d75d2d0727da285749476761ebcad557a3
- https://git.kernel.org/stable/c/8ce2e85889939c02740b4245301aa5c35fc94887
- https://git.kernel.org/stable/c/8d7ba71e46216b8657a82ca2ec118bc93812a4d0
- https://git.kernel.org/stable/c/b11e6f926480ab0939fec44781f28558c54be4e7
- https://git.kernel.org/stable/c/d448bf96889f1905e740c554780f5c9fa0440566
- https://git.kernel.org/stable/c/d8723917efda3b4f4c3de78d1ec1e1af015c0be1
- https://git.kernel.org/stable/c/dce375f4afc348c310d171abcde7ec1499a4c26a
JSON original (NVD)
Mostrar
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nrocker: fix memory leak in rocker_world_port_post_fini()\n\nIn rocker_world_port_pre_init(), rocker_port->wpriv is allocated with\nkzalloc(wops->port_priv_size, GFP_KERNEL). However, in\nrocker_world_port_post_fini(), the memory is only freed when\nwops->port_post_fini callback is set:\n\n if (!wops->port_post_fini)\n return;\n wops->port_post_fini(rocker_port);\n kfree(rocker_port->wpriv);\n\nSince rocker_ofdpa_ops does not implement port_post_fini callback\n(it is NULL), the wpriv memory allocated for each port is never freed\nwhen ports are removed. This leads to a memory leak of\nsizeof(struct ofdpa_port) bytes per port on every device removal.\n\nFix this by always calling kfree(rocker_port->wpriv) regardless of\nwhether the port_post_fini callback exists."
},
{
"lang": "es",
"value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nrocker: corregir fuga de memoria en rocker_world_port_post_fini()\n\nEn rocker_world_port_pre_init(), rocker_port->wpriv se asigna con kzalloc(wops->port_priv_size, GFP_KERNEL). Sin embargo, en rocker_world_port_post_fini(), la memoria solo se libera cuando la devolución de llamada wops->port_post_fini está establecida:\n\n si (!wops->port_post_fini)\n retornar;\n wops->port_post_fini(rocker_port);\n kfree(rocker_port->wpriv);\n\nDado que rocker_ofdpa_ops no implementa la devolución de llamada port_post_fini (es NULL), la memoria wpriv asignada para cada puerto nunca se libera cuando se eliminan los puertos. Esto conduce a una fuga de memoria de sizeof(struct ofdpa_port) bytes por puerto en cada eliminación de dispositivo.\n\nSolucione esto llamando siempre a kfree(rocker_port->wpriv) independientemente de si existe la devolución de llamada port_post_fini."
}
],
"lastModified": "2026-06-17T10:21:01.117",
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