CVE-2025-38565

{"id": "CVE-2025-38565", "cveTags": [], "metrics": {}, "published": "2025-08-19T17:15:33.077", "references": [{"url": "https://git.kernel.org/stable/c/07091aade394f690e7b655578140ef84d0e8d7b0", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/163b0d1a209fe0df5476c1df2330ca12b55abf92", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/27d44145bd576bbef9bf6165bcd78128ec3e6cbd", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/7ff8521f30c4c2fcd4e88bd7640486602bf8a650", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/92043120a2e992800580855498ab8507e1b22db9", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/f41e9eba77bf97626e04296dc5677d02816d2432", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Awaiting Analysis", "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nperf/core: Exit early on perf_mmap() fail\n\nWhen perf_mmap() fails to allocate a buffer, it still invokes the\nevent_mapped() callback of the related event. On X86 this might increase\nthe perf_rdpmc_allowed reference counter. But nothing undoes this as\nperf_mmap_close() is never called in this case, which causes another\nreference count leak.\n\nReturn early on failure to prevent that."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: perf/core: Salida anticipada en caso de fallo de perf_mmap(). Cuando perf_mmap() no asigna un b\u00fafer, sigue invocando la devoluci\u00f3n de llamada event_mapped() del evento relacionado. En X86, esto podr\u00eda aumentar el contador de referencias perf_rdpmc_allowed. Sin embargo, esto no se puede revertir, ya que perf_mmap_close() nunca se llama en este caso, lo que provoca otra fuga del recuento de referencias. Para evitarlo, se debe regresar anticipadamente en caso de fallo."}], "lastModified": "2025-08-20T14:40:17.713", "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}