CVE-2025-38466

{"id": "CVE-2025-38466", "cveTags": [], "metrics": {}, "published": "2025-07-25T16:15:32.673", "references": [{"url": "https://git.kernel.org/stable/c/183bdb89af1b5193b1d1d9316986053b15ca6fa4", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/8e8bf7bc6aa6f583336c2fda280b6cea0aed5612", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/a0a8009083e569b5526c64f7d3f2a62baca95164", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/ba677dbe77af5ffe6204e0f3f547f3ba059c6302", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/c0aec35f861fa746ca45aa816161c74352e6ada8", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/d5074256b642cdeb46a70ce2f15193e766edca68", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/d7ef1afd5b3f43f4924326164cee5397b66abd9c", "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: Revert to requiring CAP_SYS_ADMIN for uprobes\n\nJann reports that uprobes can be used destructively when used in the\nmiddle of an instruction. The kernel only verifies there is a valid\ninstruction at the requested offset, but due to variable instruction\nlength cannot determine if this is an instruction as seen by the\nintended execution stream.\n\nAdditionally, Mark Rutland notes that on architectures that mix data\nin the text segment (like arm64), a similar things can be done if the\ndata word is 'mistaken' for an instruction.\n\nAs such, require CAP_SYS_ADMIN for uprobes."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: perf: Revertir al requisito de CAP_SYS_ADMIN para uprobes. Jann informa que los uprobes pueden usarse de forma destructiva cuando se usan en medio de una instrucci\u00f3n. El kernel solo verifica que haya una instrucci\u00f3n v\u00e1lida en el desplazamiento solicitado, pero debido a la longitud variable de la instrucci\u00f3n, no puede determinar si se trata de una instrucci\u00f3n como la detecta el flujo de ejecuci\u00f3n previsto. Adem\u00e1s, Mark Rutland se\u00f1ala que en arquitecturas que mezclan datos en el segmento de texto (como arm64), se puede realizar una acci\u00f3n similar si la palabra de datos se confunde con una instrucci\u00f3n. Por lo tanto, se requiere CAP_SYS_ADMIN para uprobes."}], "lastModified": "2025-07-29T14:14:55.157", "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}