{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2026-46092",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2026-46092"
  ],
  "published": "2026-05-27T12:59:23Z",
  "summary": "wifi: rtw88: check for PCI upstream bridge existence",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: rtw88: check for PCI upstream bridge existence\n\npci_upstream_bridge() returns NULL if the device is on a root bus.  If\n8821CE is installed in the system with such a PCI topology, the probing\nroutine will crash.  This has probably been unnoticed as 8821CE is mostly\nsupplied in laptops where there is a PCI-to-PCI bridge located upstream\nfrom the device.  However the card might be installed on a system with\ndifferent configuration.\n\nCheck if the bridge does exist for the specific workaround to be applied.\n\nFound by Linux Verification Center (linuxtesting.org) with Svace static\nanalysis tool.",
  "affected": [
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        "ecosystem": "Raspberry Pi OS:12",
        "name": "linux"
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  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-46092"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/959c13da6c36167ce1016d400a6104d2367f686e"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/3b89b4c095804c478d50376285e66700cf3c045f"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/cc9b6303e7ea91bc360b42c7edc1fe9ceb2f47fe"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/6c53d68e3bcfc8faccdd76c3383a9232b05c9ae6"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/000134a20bbf89b1152520a2eef71f91fdb83a5b"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/3bbbb56204f7359ce2139a9341b43b52a186261c"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/eb101d2abdcccb514ca4fccd3b278dd8267374f6"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-07-16T11:13:50Z"
  }
}