{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "e46df235b4e605aa4e7609a27c118a1cccd4ff9a"
            },
            {
              "fixed": "23252bc1cd9a58a039c9b1ae77b22d2b33da48e9"
            },
            {
              "fixed": "903a7cdf63a81d3738594c5bd1b5955f58fda427"
            },
            {
              "fixed": "51552c8c60d3b1fecc062eab2d8cfeaa1cb339dd"
            },
            {
              "fixed": "7f6d898179ca4771ee602bdad4246c3952af83eb"
            },
            {
              "fixed": "e06785cba7f86d72abd531058b1a82d6952a7346"
            },
            {
              "fixed": "88292b7103d260e3e606eb3bb2794060a5fde48e"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "4.18.0"
            },
            {
              "fixed": "6.1.188"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.157"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.110"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.52"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.2.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/92xxx/CVE-2026-92481.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\npinctrl: mediatek: free EINT resources on unbind\n\nmtk_eint_do_init() creates an IRQ domain, populates it with a mapping for\nevery EINT line and installs a chained handler on the parent interrupt,\nbut none of these are ever released. This was harmless while the drivers\nwere built-in, but now that they can be built as modules and\nunbound/rmmod'd it leaves behind a dangling IRQ domain, interrupt mappings\nwhose chip data points at freed memory, and a chained handler that keeps\nfiring into that freed data.\n\nThe plain allocations in mtk_eint_do_init() already use the device-managed\ndevm_*() helpers, so tear the remaining resources down the same way:\nregister a devm action that detaches the chained handler, waits for any\nin-flight handler to finish, disposes of the per-line mappings and removes\nthe IRQ domain. This mirrors the device-managed lifecycle adopted for the\nGPIO chip and keeps the whole EINT setup self-cleaning on unbind.",
  "id": "CVE-2026-92481",
  "modified": "2026-09-19T03:30:22.496647393Z",
  "published": "2026-09-17T16:09:58.378Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/23252bc1cd9a58a039c9b1ae77b22d2b33da48e9"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/51552c8c60d3b1fecc062eab2d8cfeaa1cb339dd"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7f6d898179ca4771ee602bdad4246c3952af83eb"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/88292b7103d260e3e606eb3bb2794060a5fde48e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/903a7cdf63a81d3738594c5bd1b5955f58fda427"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e06785cba7f86d72abd531058b1a82d6952a7346"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/92xxx/CVE-2026-92481.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-92481"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "pinctrl: mediatek: free EINT resources on unbind"
}