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CVE-2024-50208

Status: ModifiedMedium (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

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (1)

Linux — Linux Kernel

CWEs

References

Raw JSON (NVD)

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      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/bnxt_re: Fix a bug while setting up Level-2 PBL pages\n\nAvoid memory corruption while setting up Level-2 PBL pages for the non MR\nresources when num_pages > 256K.\n\nThere will be a single PDE page address (contiguous pages in the case of >\nPAGE_SIZE), but, current logic assumes multiple pages, leading to invalid\nmemory access after 256K PBL entries in the PDE."
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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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