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CVE-2025-37887

Estado: ModificadaMedia (5.5)—

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

pds_core: handle unsupported PDS_CORE_CMD_FW_CONTROL result

If the FW doesn't support the PDS_CORE_CMD_FW_CONTROL command the driver might at the least print garbage and at the worst crash when the user runs the "devlink dev info" devlink command.

This happens because the stack variable fw_list is not 0 initialized which results in fw_list.num_fw_slots being a garbage value from the stack. Then the driver tries to access fw_list.fw_names[i] with i >= ARRAY_SIZE and runs off the end of the array.

Fix this by initializing the fw_list and by not failing completely if the devcmd fails because other useful information is printed via devlink dev info even if the devcmd fails.

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)

Linux — Linux Kernel

CWE

Referencias

JSON original (NVD)

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          "value": "CWE-908"
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    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\npds_core: handle unsupported PDS_CORE_CMD_FW_CONTROL result\n\nIf the FW doesn't support the PDS_CORE_CMD_FW_CONTROL command\nthe driver might at the least print garbage and at the worst\ncrash when the user runs the \"devlink dev info\" devlink command.\n\nThis happens because the stack variable fw_list is not 0\ninitialized which results in fw_list.num_fw_slots being a\ngarbage value from the stack.  Then the driver tries to access\nfw_list.fw_names[i] with i >= ARRAY_SIZE and runs off the end\nof the array.\n\nFix this by initializing the fw_list and by not failing\ncompletely if the devcmd fails because other useful information\nis printed via devlink dev info even if the devcmd fails."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: pds_core: manejar resultados PDS_CORE_CMD_FW_CONTROL no compatibles. Si el firmware no admite el comando PDS_CORE_CMD_FW_CONTROL, el controlador podría, como mínimo, imprimir información no válida y, en el peor de los casos, bloquearse cuando el usuario ejecuta el comando \"devlink dev info\". Esto ocurre porque la variable de pila fw_list no se inicializa a 0, lo que hace que fw_list.num_fw_slots sea un valor no válido de la pila. A continuación, el controlador intenta acceder a fw_list.fw_names[i] con i >= ARRAY_SIZE y se ejecuta desde el final de la matriz. Para solucionar esto, inicialice fw_list y evite fallar por completo si devcmd falla, ya que se imprime otra información útil mediante devlink dev info incluso si devcmd falla."
    }
  ],
  "lastModified": "2026-07-30T06:22:28.543",
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