{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "60b59beafba875aef6d378078bce0baf2287ae14"
            },
            {
              "fixed": "4aab89603b637a2e441b38808c4f6fe7d1184df6"
            },
            {
              "fixed": "4fda0d6b45faad44926dd3e4f55f118d899b2e27"
            },
            {
              "fixed": "2a40f8bc9bb713329f1c35ffc199ee961a7135b0"
            },
            {
              "fixed": "2b53d3a52e8e5403a4f4fb57ac6cad3fd2cb1066"
            },
            {
              "fixed": "25c2b77bc463f29ee71a54b883548baf9386a0db"
            },
            {
              "fixed": "a0aafb421dd15e935d81543152617f2742cefa70"
            },
            {
              "fixed": "9ded47ad003f09a94b6a710b5c47f4aa5ceb7429"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.6.22"
            },
            {
              "fixed": "5.15.210"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.16.0"
            },
            {
              "fixed": "6.1.176"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.140"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.88"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.30"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.0.4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46065.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nfbdev: defio: Disconnect deferred I/O from the lifetime of struct fb_info\n\nHold state of deferred I/O in struct fb_deferred_io_state. Allocate an\ninstance as part of initializing deferred I/O and remove it only after\nthe final mapping has been closed. If the fb_info and the contained\ndeferred I/O meanwhile goes away, clear struct fb_deferred_io_state.info\nto invalidate the mapping. Any access will then result in a SIGBUS\nsignal.\n\nFixes a long-standing problem, where a device hot-unplug happens while\nuser space still has an active mapping of the graphics memory. The hot-\nunplug frees the instance of struct fb_info. Accessing the memory will\noperate on undefined state.",
  "id": "CVE-2026-46065",
  "modified": "2026-07-08T05:35:56.324781550Z",
  "published": "2026-05-27T12:57:32.968Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/25c2b77bc463f29ee71a54b883548baf9386a0db"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2a40f8bc9bb713329f1c35ffc199ee961a7135b0"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2b53d3a52e8e5403a4f4fb57ac6cad3fd2cb1066"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4aab89603b637a2e441b38808c4f6fe7d1184df6"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4fda0d6b45faad44926dd3e4f55f118d899b2e27"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9ded47ad003f09a94b6a710b5c47f4aa5ceb7429"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a0aafb421dd15e935d81543152617f2742cefa70"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46065.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-46065"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.7.5",
  "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": "fbdev: defio: Disconnect deferred I/O from the lifetime of struct fb_info"
}