CVE-2025-38610

{"id": "CVE-2025-38610", "cveTags": [], "metrics": {}, "published": "2025-08-19T17:15:39.490", "references": [{"url": "https://git.kernel.org/stable/c/27914f2b795e2b58e9506f281dcdd98fef09d3c2", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/27e0318f0ea69fcfa32228847debc384ade14578", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/2fd001a0075ac01dc64a28a8e21226b3d989a91d", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/46dc57406887dd02565cb264224194a6776d882b", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/8374ac7d69a57d737e701a851ffe980a0d27d3ad", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/c6ec27091cf5ac05094c1fe3a6ce914cf711a37c", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Awaiting Analysis", "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\npowercap: dtpm_cpu: Fix NULL pointer dereference in get_pd_power_uw()\n\nThe get_pd_power_uw() function can crash with a NULL pointer dereference\nwhen em_cpu_get() returns NULL. This occurs when a CPU becomes impossible\nduring runtime, causing get_cpu_device() to return NULL, which propagates\nthrough em_cpu_get() and leads to a crash when em_span_cpus() dereferences\nthe NULL pointer.\n\nAdd a NULL check after em_cpu_get() and return 0 if unavailable,\nmatching the existing fallback behavior in __dtpm_cpu_setup().\n\n[ rjw: Drop an excess empty code line ]"}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: powercap: dtpm_cpu: Correcci\u00f3n de la desreferencia de puntero nulo en get_pd_power_uw(). La funci\u00f3n get_pd_power_uw() puede fallar con una desreferencia de puntero nulo cuando em_cpu_get() devuelve NULL. Esto ocurre cuando una CPU se vuelve inoperativa durante la ejecuci\u00f3n, lo que provoca que get_cpu_device() devuelva NULL. Este comportamiento se propaga a trav\u00e9s de em_cpu_get() y provoca un fallo cuando em_span_cpus() desreferencia el puntero nulo. Se a\u00f1ade una comprobaci\u00f3n de NULL despu\u00e9s de em_cpu_get() y se devuelve 0 si no est\u00e1 disponible, coincidiendo con el comportamiento de reserva existente en __dtpm_cpu_setup(). [rjw: Omitir una l\u00ednea de c\u00f3digo vac\u00eda sobrante]"}], "lastModified": "2025-08-20T14:40:17.713", "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}