FKIE_CVE-2026-23149

Vulnerability from fkie_nvd - Published: 2026-02-14 16:15 - Updated: 2026-02-18 17:52
Severity ?
Summary
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.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/12f15d52d38ac53f7c70ea3d4b3d76afed04e064
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ae8831ee0fb2f5f41f39722e7b3749d65bb78d08
Impacted products
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{
  "cveTags": [],
  "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 \u003c 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 implementaci\u00f3n 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 \u0026lt; 0))\n\t\treturn -EINVAL;\n...\n\nSe soluciona rechazando los nuevos identificadores superiores a INT_MAX y al mismo tiempo haciendo m\u00e1s obvio el c\u00e1lculo del l\u00edmite final al moverlo al dominio int."
    }
  ],
  "id": "CVE-2026-23149",
  "lastModified": "2026-02-18T17:52:44.520",
  "metrics": {},
  "published": "2026-02-14T16:15:55.023",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/12f15d52d38ac53f7c70ea3d4b3d76afed04e064"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/ae8831ee0fb2f5f41f39722e7b3749d65bb78d08"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}


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