GHSA-FX53-FH8Q-8MMR

Vulnerability from github – Published: 2026-07-25 12:31 – Updated: 2026-07-25 12:31
VLAI
Details

In the Linux kernel, the following vulnerability has been resolved:

ACPI: NFIT: core: Fix possible NULL pointer dereference

After commit 9b311b7313d6 ("ACPI: NFIT: Install Notify() handler before getting NFIT table"), acpi_nfit_probe() installs an ACPI notify handler for the NFIT device before checking the presence of the NFIT table. If that table is not there, 0 is returned without allocating the acpi_desc object and setting the driver data pointer of the NFIT device. If the platform firmware triggers an NFIT_NOTIFY_UC_MEMORY_ERROR notification on the NFIT device at that point, acpi_nfit_uc_error_notify() will dereference a NULL pointer.

Prevent that from occurring by adding an acpi_desc check against NULL to acpi_nfit_uc_error_notify().

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{
  "affected": [],
  "aliases": [
    "CVE-2026-64511"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-07-25T10:17:37Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nACPI: NFIT: core: Fix possible NULL pointer dereference\n\nAfter commit 9b311b7313d6 (\"ACPI: NFIT: Install Notify() handler before\ngetting NFIT table\"), acpi_nfit_probe() installs an ACPI notify handler\nfor the NFIT device before checking the presence of the NFIT table.  If\nthat table is not there, 0 is returned without allocating the acpi_desc\nobject and setting the driver data pointer of the NFIT device.  If the\nplatform firmware triggers an NFIT_NOTIFY_UC_MEMORY_ERROR notification\non the NFIT device at that point, acpi_nfit_uc_error_notify() will\ndereference a NULL pointer.\n\nPrevent that from occurring by adding an acpi_desc check against NULL\nto acpi_nfit_uc_error_notify().",
  "id": "GHSA-fx53-fh8q-8mmr",
  "modified": "2026-07-25T12:31:38Z",
  "published": "2026-07-25T12:31:38Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-64511"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/027e128abb82788189d6d45b68e3e8e7329b67be"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3c8f73b0fbdf956c98e2329d5aaea3ad09a9cfb6"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/452945662fd8e9862a2d2043239c7ee1815d1ac4"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/873576e585da5d0fc5debbab74eed565c0acea99"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a44343fe230aa48c74ef09830f3c5c90848b257e"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}



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