CVE-2025-38483

{"id": "CVE-2025-38483", "cveTags": [], "metrics": {}, "published": "2025-07-28T12:15:30.253", "references": [{"url": "https://git.kernel.org/stable/c/076b13ee60eb01ed0d140ef261f95534562a3077", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/65c03e6fc524eb2868abedffd8a4613d78abc288", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/adb7df8a8f9d788423e161b779764527dd3ec2d0", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/ed93c6f68a3be06e4e0c331c6e751f462dee3932", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/f211572818ed5bec2b3f5d4e0719ef8699b3c269", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Awaiting Analysis", "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncomedi: das16m1: Fix bit shift out of bounds\n\nWhen checking for a supported IRQ number, the following test is used:\n\n\t/* only irqs 2, 3, 4, 5, 6, 7, 10, 11, 12, 14, and 15 are valid */\n\tif ((1 << it->options[1]) & 0xdcfc) {\n\nHowever, `it->options[i]` is an unchecked `int` value from userspace, so\nthe shift amount could be negative or out of bounds. Fix the test by\nrequiring `it->options[1]` to be within bounds before proceeding with\nthe original test."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: comedi: das16m1: Corregir desplazamiento de bits fuera de los l\u00edmites Al comprobar un n\u00famero de IRQ compatible, se utiliza la siguiente prueba: /* solo las irq 2, 3, 4, 5, 6, 7, 10, 11, 12, 14 y 15 son v\u00e1lidas */ if ((1 &lt;&lt; it-&gt;options[1]) &amp; 0xdcfc) { Sin embargo, `it-&gt;options[i]` es un valor `int` sin comprobar del espacio de usuario, por lo que la cantidad de desplazamiento podr\u00eda ser negativa o estar fuera de los l\u00edmites. Corrija la prueba exigiendo que `it-&gt;options[1]` est\u00e9 dentro de los l\u00edmites antes de continuar con la prueba original."}], "lastModified": "2025-07-29T14:14:29.590", "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}