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CVE-2025-22067

Estado: ModificadaAlta (7.8)—

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

spi: cadence: Fix out-of-bounds array access in cdns_mrvl_xspi_setup_clock()

If requested_clk > 128, cdns_mrvl_xspi_setup_clock() iterates over the entire cdns_mrvl_xspi_clk_div_list array without breaking out early, causing 'i' to go beyond the array bounds.

Fix that by stopping the loop when it gets to the last entry, clamping the clock to the minimum 6.25 MHz.

Fixes the following warning with an UBSAN kernel:

Detalles técnicos trazas, registros y código del informe original
  vmlinux.o: warning: objtool: cdns_mrvl_xspi_setup_clock: unexpected end of section .text.cdns_mrvl_xspi_setup_clock

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).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

Acceso local sin interacción del usuario en Linux kernel (AV:L, PR:L, UI:N) permite escalar privilegios o causar DoS por desbordamiento de array no delimitado en cdns_mrvl_xspi_setup_clock().

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Threat Intelligence ProgramRestrict File and Directory PermissionsRemote Data StorageFilter Network TrafficExecution PreventionEncrypt Sensitive Information

Tecnologías afectadas (1)

Linux — Linux Kernel

CWE

Referencias

JSON original (NVD)

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      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nspi: cadence: Fix out-of-bounds array access in cdns_mrvl_xspi_setup_clock()\n\nIf requested_clk > 128, cdns_mrvl_xspi_setup_clock() iterates over the\nentire cdns_mrvl_xspi_clk_div_list array without breaking out early,\ncausing 'i' to go beyond the array bounds.\n\nFix that by stopping the loop when it gets to the last entry, clamping\nthe clock to the minimum 6.25 MHz.\n\nFixes the following warning with an UBSAN kernel:\n\n  vmlinux.o: warning: objtool: cdns_mrvl_xspi_setup_clock: unexpected end of section .text.cdns_mrvl_xspi_setup_clock"
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    }
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