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CVE-2026-23149

Estado: AnalizadaMedia (5.5)—

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

drm: Do not allow userspace to trigger kernel warnings in drm_gem_change_handle_ioctl()

Since GEM bo handles are u32 in the uapi and the internal implementation uses idr_alloc() which uses int ranges, passing a new handle larger than INT_MAX trivially triggers a kernel warning:

idr_alloc(): ... if (WARN_ON_ONCE(start < 0)) return -EINVAL; ...

Fix it by rejecting new handles above INT_MAX and at the same time make the end limit calculation more obvious by moving into int domain.

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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          "version": "3.1",
          "baseScore": 5.5,
          "attackVector": "LOCAL",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "NONE"
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        "impactScore": 3.6,
        "exploitabilityScore": 1.8
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          "product": "Linux",
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        {
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          "vendor": "Linux",
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          "programFiles": [
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          "defaultStatus": "affected"
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  "published": "2026-02-14T16:15:55.023",
  "references": [
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      "url": "https://git.kernel.org/stable/c/12f15d52d38ac53f7c70ea3d4b3d76afed04e064",
      "tags": [
        "Patch"
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      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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  "vulnStatus": "Analyzed",
  "weaknesses": [
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      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
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      ]
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  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm: Do not allow userspace to trigger kernel warnings in drm_gem_change_handle_ioctl()\n\nSince GEM bo handles are u32 in the uapi and the internal implementation\nuses idr_alloc() which uses int ranges, passing a new handle larger than\nINT_MAX trivially triggers a kernel warning:\n\nidr_alloc():\n...\n\tif (WARN_ON_ONCE(start < 0))\n\t\treturn -EINVAL;\n...\n\nFix it by rejecting new handles above INT_MAX and at the same time make\nthe end limit calculation more obvious by moving into int domain."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\ndrm: No permitir que el espacio de usuario active advertencias del kernel en drm_gem_change_handle_ioctl()\n\nDado que los identificadores GEM bo son u32 en la uapi y la implementación interna utiliza idr_alloc() que usa rangos int, pasar un nuevo identificador mayor que INT_MAX desencadena trivialmente una advertencia del kernel:\n\nidr_alloc():\n...\n\tif (WARN_ON_ONCE(start &lt; 0))\n\t\treturn -EINVAL;\n...\n\nSe soluciona rechazando los nuevos identificadores superiores a INT_MAX y al mismo tiempo haciendo más obvio el cálculo del límite final al moverlo al dominio int."
    }
  ],
  "lastModified": "2026-06-17T10:20:59.410",
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