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CVE-2024-27008

Estado: AnalizadaAlta (7.8)—

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

drm: nv04: Fix out of bounds access

When Output Resource (dcb->or) value is assigned in fabricate_dcb_output(), there may be out of bounds access to dac_users array in case dcb->or is zero because ffs(dcb->or) is used as index there. The 'or' argument of fabricate_dcb_output() must be interpreted as a number of bit to set, not value.

Utilize macros from 'enum nouveau_or' in calls instead of hardcoding.

Found by Linux Verification Center (linuxtesting.org) with SVACE.

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 (3)

Debian — Debian LinuxFedoraproject — FedoraLinux — Linux Kernel

CWE

Referencias

JSON original (NVD)

Mostrar
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      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm: nv04: Fix out of bounds access\n\nWhen Output Resource (dcb->or) value is assigned in\nfabricate_dcb_output(), there may be out of bounds access to\ndac_users array in case dcb->or is zero because ffs(dcb->or) is\nused as index there.\nThe 'or' argument of fabricate_dcb_output() must be interpreted as a\nnumber of bit to set, not value.\n\nUtilize macros from 'enum nouveau_or' in calls instead of hardcoding.\n\nFound by Linux Verification Center (linuxtesting.org) with SVACE."
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    {
      "lang": "es",
      "value": "En el kernel de Linux, se resolvió la siguiente vulnerabilidad: drm: nv04: corregir el acceso fuera de los límites Cuando se asigna el valor del recurso de salida (dcb->or) en fabricate_dcb_output(), puede haber acceso fuera de los límites a la matriz dac_users en caso de que dcb->or es cero porque ffs(dcb->or) se usa como índice allí. El argumento 'o' de fabricate_dcb_output() debe interpretarse como un número de bits a configurar, no como un valor. Utilice macros de 'enum nouveau_or' en las llamadas en lugar de codificarlas. Encontrado por el Centro de verificación de Linux (linuxtesting.org) con SVACE."
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