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CVE-2024-50208

Estado: ModificadaMedia (5.5)—

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

RDMA/bnxt_re: Fix a bug while setting up Level-2 PBL pages

Avoid memory corruption while setting up Level-2 PBL pages for the non MR resources when num_pages > 256K.

There will be a single PDE page address (contiguous pages in the case of > PAGE_SIZE), but, current logic assumes multiple pages, leading to invalid memory access after 256K PBL entries in the PDE.

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)

CWE

Referencias

JSON original (NVD)

Mostrar
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      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: RDMA/bnxt_re: Se corrige un error al configurar páginas PBL de nivel 2 Evita la corrupción de memoria al configurar páginas PBL de nivel 2 para los recursos que no son MR cuando num_pages > 256K. Habrá una única dirección de página PDE (páginas contiguas en el caso de > PAGE_SIZE), pero la lógica actual supone varias páginas, lo que genera un acceso a memoria no válido después de 256K entradas PBL en el PDE."
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