{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "cf67cc9a29ac19c98bc4fa0e6d14b0c1f592d322"
            },
            {
              "fixed": "2987642c5213508c6c9e718324c0d5289a92c474"
            },
            {
              "fixed": "65d1213baffa363f2eb1117b1dc7acc573b890f8"
            },
            {
              "fixed": "875fa28690e93ed5296c31d3344556c6bb867234"
            },
            {
              "fixed": "21ca24ba51a2c28bcc4df9d7e5a40b0eb66ab76d"
            },
            {
              "fixed": "b5fc86d753dd4c281a943b92f0eef02d31af03d7"
            },
            {
              "fixed": "a540f767642f75240a6c35f6a65b69e44cfcea9d"
            },
            {
              "fixed": "d3968a0d85b211e197f2f4f06268a7031079e0d0"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "4.3.0"
            },
            {
              "fixed": "5.10.253"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.11.0"
            },
            {
              "fixed": "5.15.203"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.16.0"
            },
            {
              "fixed": "6.1.167"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.130"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.18.14"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "6.19.4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/45xxx/CVE-2026-45956.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/exynos: vidi: use priv-\u003evidi_dev for ctx lookup in vidi_connection_ioctl()\n\nvidi_connection_ioctl() retrieves the driver_data from drm_dev-\u003edev to\nobtain a struct vidi_context pointer. However, drm_dev-\u003edev 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-\u003evidi_dev during bind/unbind, and then read this\nexynos_drm_private-\u003evidi_dev within ioctl() to obtain the correct\nstruct vidi_context pointer.",
  "id": "CVE-2026-45956",
  "modified": "2026-07-15T01:48:53.119292857Z",
  "published": "2026-05-27T12:18:11.972Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/21ca24ba51a2c28bcc4df9d7e5a40b0eb66ab76d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2987642c5213508c6c9e718324c0d5289a92c474"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/65d1213baffa363f2eb1117b1dc7acc573b890f8"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/875fa28690e93ed5296c31d3344556c6bb867234"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a540f767642f75240a6c35f6a65b69e44cfcea9d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b5fc86d753dd4c281a943b92f0eef02d31af03d7"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d3968a0d85b211e197f2f4f06268a7031079e0d0"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/45xxx/CVE-2026-45956.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-45956"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.8.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "drm/exynos: vidi: use priv-\u003evidi_dev for ctx lookup in vidi_connection_ioctl()"
}