CVE-2024-58034

Estado: ModificadaAlta (7.8)—

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

memory: tegra20-emc: fix an OF node reference bug in tegra_emc_find_node_by_ram_code()

As of_find_node_by_name() release the reference of the argument device node, tegra_emc_find_node_by_ram_code() releases some device nodes while still in use, resulting in possible UAFs. According to the bindings and the in-tree DTS files, the "emc-tables" node is always device's child node with the property "nvidia,use-ram-code", and the "lpddr2" node is a child of the "emc-tables" node. Thus utilize the for_each_child_of_node() macro and of_get_child_by_name() instead of of_find_node_by_name() to simplify the code.

Leer descripción completaMostrar menos

This bug was found by an experimental verification tool that I am developing.

[krzysztof: applied v1, adjust the commit msg to incorporate v2 parts]

CVSS

Versión: 3.1
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Puntuación base: 7.8

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 0.24%
Percentil entre todas las CVEs puntuadas: 13
Fecha de la puntuación: 6/10/2026

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.

ExplotaciónT1068 Exploitation for Privilege Escalationprivilege escalation75 %
Impacto principalT1059 Command and Scripting Interpreterexecution70 %

Vulnerabilidad local (AV:L, PR:L) sin interacción de usuario que resulta en UAF permitiendo ejecución de código con privilegios elevados en kernel Linux.

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

Execution Prevention Threat Intelligence Program Restrict Web-Based Content Privileged Account Management Limit Software Installation Behavior Prevention on Endpoint

Tecnologías afectadas (1)

Linux — Linux Kernel

CWE

CWE-416

Referencias

JSON original (NVD)

Mostrar

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      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmemory: tegra20-emc: fix an OF node reference bug in tegra_emc_find_node_by_ram_code()\n\nAs of_find_node_by_name() release the reference of the argument device\nnode, tegra_emc_find_node_by_ram_code() releases some device nodes while\nstill in use, resulting in possible UAFs. According to the bindings and\nthe in-tree DTS files, the \"emc-tables\" node is always device's child\nnode with the property \"nvidia,use-ram-code\", and the \"lpddr2\" node is a\nchild of the \"emc-tables\" node. Thus utilize the\nfor_each_child_of_node() macro and of_get_child_by_name() instead of\nof_find_node_by_name() to simplify the code.\n\nThis bug was found by an experimental verification tool that I am\ndeveloping.\n\n[krzysztof: applied v1, adjust the commit msg to incorporate v2 parts]"
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      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: memoria: tegra20-emc: se corrige un error de referencia de nodo OF en tegra_emc_find_node_by_ram_code() Como of_find_node_by_name() libera la referencia del nodo de dispositivo de argumento, tegra_emc_find_node_by_ram_code() libera algunos nodos de dispositivo mientras aún están en uso, lo que da como resultado posibles UAF. Según los enlaces y los archivos DTS en el árbol, el nodo \"emc-tables\" siempre es el nodo secundario del dispositivo con la propiedad \"nvidia,use-ram-code\", y el nodo \"lpddr2\" es un nodo secundario del nodo \"emc-tables\". Por lo tanto, utilice la macro for_each_child_of_node() y of_get_child_by_name() en lugar de of_find_node_by_name() para simplificar el código. Este error fue encontrado por una herramienta de verificación experimental que estoy desarrollando. [krzysztof: se aplicó la versión 1, se ajustó el mensaje de confirmación para incorporar partes de la versión 2]"
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