CVE-2025-38736
Full vulnerability record from the local CVENow database.
Description
In the Linux kernel, the following vulnerability has been resolved: net: usb: asix_devices: Fix PHY address mask in MDIO bus initialization Syzbot reported shift-out-of-bounds exception on MDIO bus initialization. The PHY address should be masked to 5 bits (0-31). Without this mask, invalid PHY addresses could be used, potentially causing issues with MDIO bus operations. Fix this by masking the PHY address with 0x1f (31 decimal) to ensure it stays within the valid range.
Severity
HIGH
CVSS score
7.1
(v3.1)
Vulnerability status
Modified
Source identifier
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Published
2025-09-05 18:15:42.953000
Last modified
2026-10-19 21:10:00.160000
View original CVE JSON
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"id": "CVE-2025-38736",
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"published": "2025-09-05T18:15:42.953",
"lastModified": "2026-10-19T21:10:00.160",
"vulnStatus": "Modified",
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"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: usb: asix_devices: Fix PHY address mask in MDIO bus initialization\n\nSyzbot reported shift-out-of-bounds exception on MDIO bus initialization.\n\nThe PHY address should be masked to 5 bits (0-31). Without this\nmask, invalid PHY addresses could be used, potentially causing issues\nwith MDIO bus operations.\n\nFix this by masking the PHY address with 0x1f (31 decimal) to ensure\nit stays within the valid range."
},
{
"lang": "es",
"value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nnet: usb: asix_devices: Corrección de la máscara de dirección PHY en la inicialización del bus MDIO\n\nSyzbot informó una excepción de desplazamiento fuera de límites en la inicialización del bus MDIO.\n\nLa dirección PHY debería enmascararse a 5 bits (0-31). Sin esta máscara, podrían usarse direcciones PHY no válidas, lo que podría causar problemas con las operaciones del bus MDIO.\n\nEsto se corrige enmascarando la dirección PHY con 0x1f (31 decimal) para asegurar que permanezca dentro del rango válido."
}
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