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CVE-2024-50080

Estado: ModificadaMedia (5.5)—

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

ublk: don't allow user copy for unprivileged device

UBLK_F_USER_COPY requires userspace to call write() on ublk char device for filling request buffer, and unprivileged device can't be trusted.

So don't allow user copy for unprivileged device.

CVSS

Probabilidad de explotación (EPSS)

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).

Tecnologías afectadas (1)

Linux — Linux Kernel

CWE

Referencias

JSON original (NVD)

Mostrar
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          "role": "CISA Coordinator",
          "options": [
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              "exploitation": "none"
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              "automatable": "no"
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              "technicalImpact": "partial"
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          "version": "2.0.3",
          "timestamp": "2025-10-01T20:23:18.941613Z"
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          "product": "Linux",
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              "version": "6.12",
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          "programFiles": [
            "drivers/block/ublk_drv.c",
            "include/uapi/linux/ublk_cmd.h"
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  "published": "2024-10-29T01:15:05.000",
  "references": [
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      "url": "https://git.kernel.org/stable/c/42aafd8b48adac1c3b20fe5892b1b91b80c1a1e6",
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      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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      "tags": [
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      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nublk: don't allow user copy for unprivileged device\n\nUBLK_F_USER_COPY requires userspace to call write() on ublk char\ndevice for filling request buffer, and unprivileged device can't\nbe trusted.\n\nSo don't allow user copy for unprivileged device."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ublk: no se permite la copia de usuario para dispositivos sin privilegios UBLK_F_USER_COPY requiere que el espacio de usuario llame a write() en el dispositivo char ublk para llenar el búfer de solicitud y no se puede confiar en el dispositivo sin privilegios. Por lo tanto, no se permite la copia de usuario para dispositivos sin privilegios."
    }
  ],
  "lastModified": "2026-06-17T08:03:31.950",
  "configurations": [
    {
      "nodes": [
        {
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