drm/exynos: vidi: use priv->vidi_dev for ctx lookup in vidi_connection_ioctl()_CVE-2026-45956

{
    "lastseen": "",
    "description": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/exynos: vidi: use priv->vidi_dev for ctx lookup in vidi_connection_ioctl()\n\nvidi_connection_ioctl() retrieves the driver_data from drm_dev->dev to\nobtain a struct vidi_context pointer. However, drm_dev->dev is the\nexynos-drm master device, and the driver_data contained therein is not\nthe vidi component device, but a completely different device.\n\nThis can lead to various bugs, ranging from null pointer dereferences and\ngarbage value accesses to, in unlucky cases, out-of-bounds errors,\nuse-after-free errors, and more.\n\nTo resolve this issue, we need to store/delete the vidi device pointer in\nexynos_drm_private->vidi_dev during bind/unbind, and then read this\nexynos_drm_private->vidi_dev within ioctl() to obtain the correct\nstruct vidi_context pointer.",
    "published": "2026-05-27T12:18:11.972Z",
    "modified": "2026-06-05T06:06:12.449Z",
    "type": "cve",
    "title": "drm/exynos: vidi: use priv->vidi_dev for ctx lookup in vidi_connection_ioctl()",
    "source": "Linux",
    "references": "https://git.kernel.org/stable/c/2987642c5213508c6c9e718324c0d5289a92c474\nhttps://git.kernel.org/stable/c/65d1213baffa363f2eb1117b1dc7acc573b890f8\nhttps://git.kernel.org/stable/c/875fa28690e93ed5296c31d3344556c6bb867234\nhttps://git.kernel.org/stable/c/21ca24ba51a2c28bcc4df9d7e5a40b0eb66ab76d\nhttps://git.kernel.org/stable/c/b5fc86d753dd4c281a943b92f0eef02d31af03d7\nhttps://git.kernel.org/stable/c/a540f767642f75240a6c35f6a65b69e44cfcea9d\nhttps://git.kernel.org/stable/c/d3968a0d85b211e197f2f4f06268a7031079e0d0",
    "id": "CVE-2026-45956",
    "bulletinFamily": "",
    "cwe": null,
    "cvelist": null,
    "sourceData": "Linux Linux cf67cc9a29ac19c98bc4fa0e6d14b0c1f592d322\nLinux Linux cf67cc9a29ac19c98bc4fa0e6d14b0c1f592d322\nLinux Linux cf67cc9a29ac19c98bc4fa0e6d14b0c1f592d322\nLinux Linux cf67cc9a29ac19c98bc4fa0e6d14b0c1f592d322\nLinux Linux cf67cc9a29ac19c98bc4fa0e6d14b0c1f592d322\nLinux Linux cf67cc9a29ac19c98bc4fa0e6d14b0c1f592d322\nLinux Linux cf67cc9a29ac19c98bc4fa0e6d14b0c1f592d322\nLinux Linux 4.3",
    "sourceHref": "",
    "cvss": {
        "score": 7.8,
        "severity": "HIGH",
        "vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
        "version": "3.1"
    },
    "cvss2": [],
    "cvss3": {
        "version": "",
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        "baseScore": 0,
        "baseSeverity": "",
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        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
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            "baseScore": 0,
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            "integrityImpact": "",
            "availabilityImpact": ""
        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "Linux",
    "version": "cf67cc9a29ac19c98bc4fa0e6d14b0c1f592d322",
    "vendor": "Linux",
    "ai_description": "",
    "ai_severity": "",
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    "ai_score": 0
}