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CVE-2026-53152

Estado: AnalizadaMedia (5.5)—

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

mmc: dw_mmc-rockchip: Add missing private data for very old controllers

The really old controllers (rk2928, rk3066, rk3188) do not support UHS speeds at all, and thus never handled phase data.

For that reason it never had a parse_dt callback and no driver private data at all.

Commit ff6f0286c896 ("mmc: dw_mmc-rockchip: Add memory clock auto-gating support") makes the private data sort of mandatory, because the init function checks whether phases are configured internally or through the clock controller.

This results in the old SoCs then experiencing NULL-pointer dereferences when they try to access that private-data struct.

Leer descripción completaMostrar menos

While we could have if (priv) conditionals in all places, it's way less cluttery to just give the old types their private-data struct.

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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  "id": "CVE-2026-53152",
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          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
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    {
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      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmmc: dw_mmc-rockchip: Add missing private data for very old controllers\n\nThe really old controllers (rk2928, rk3066, rk3188) do not support UHS\nspeeds at all, and thus never handled phase data.\n\nFor that reason it never had a parse_dt callback and no driver private\ndata at all.\n\nCommit ff6f0286c896 (\"mmc: dw_mmc-rockchip: Add memory clock auto-gating\nsupport\") makes the private data sort of mandatory, because the init\nfunction checks whether phases are configured internally or through the\nclock controller.\n\nThis results in the old SoCs then experiencing NULL-pointer dereferences\nwhen they try to access that private-data struct.\n\nWhile we could have if (priv) conditionals in all places, it's way less\ncluttery to just give the old types their private-data struct."
    }
  ],
  "lastModified": "2026-07-06T17:39:19.837",
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