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CVE-2025-37965

Estado: AnalizadaMedia (5.5)—

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

drm/amd/display: Fix invalid context error in dml helper

[Why] "BUG: sleeping function called from invalid context" error. after: "drm/amd/display: Protect FPU in dml2_validate()/dml21_validate()"

The populate_dml_plane_cfg_from_plane_state() uses the GFP_KERNEL flag for memory allocation, which shouldn't be used in atomic contexts.

The allocation is needed only for using another helper function get_scaler_data_for_plane().

[How] Modify helpers to pass a pointer to scaler_data within existing context, eliminating the need for dynamic memory allocation/deallocation and copying.

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(cherry picked from commit bd3e84bc98f81b44f2c43936bdadc3241d654259)

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": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: Fix invalid context error in dml helper\n\n[Why]\n\"BUG: sleeping function called from invalid context\" error.\nafter:\n\"drm/amd/display: Protect FPU in dml2_validate()/dml21_validate()\"\n\nThe populate_dml_plane_cfg_from_plane_state() uses the GFP_KERNEL flag\nfor memory allocation, which shouldn't be used in atomic contexts.\n\nThe allocation is needed only for using another helper function\nget_scaler_data_for_plane().\n\n[How]\nModify helpers to pass a pointer to scaler_data within existing context,\neliminating the need for dynamic memory allocation/deallocation\nand copying.\n\n(cherry picked from commit bd3e84bc98f81b44f2c43936bdadc3241d654259)"
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      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: drm/amd/display: Corrección de error de contexto no válido en el asistente dml [Por qué] Error \"BUG: función inactiva llamada desde un contexto no válido\". Después: \"drm/amd/display: Proteger FPU en dml2_validate()/dml21_validate()\". La función populate_dml_plane_cfg_from_plane_state() utiliza el indicador GFP_KERNEL para la asignación de memoria, que no debería usarse en contextos atómicos. Esta asignación solo es necesaria para usar otra función auxiliar, get_scaler_data_for_plane(). [Cómo] Modificar los asistentes para que pasen un puntero a scaler_data dentro del contexto existente, eliminando la necesidad de asignar/desasignar memoria dinámicamente y copiar. (Seleccionado de el commit bd3e84bc98f81b44f2c43936bdadc3241d654259)"
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