{
  "cveId": "CVE-2026-98747",
  "url": "https://patchblox.com/security/cve/CVE-2026-98747",
  "summary": "CVE-2026-98747 is fixed in linux on 1 platform by DEBIAN-CVE-2026-98747 (version 7.2.10-1), released October 19, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "serial: core: fix NULL pointer dereference in serial_core_unregister_port()",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  serial: core: fix NULL pointer dereference in serial_core_unregister_port()  port-\u003Eport_dev is NULL when no port device is installed: it is cleared on teardown, and never set if registration failed before serial_core_port_device_add().  serial_core_unregister_port() passes it straight to serial_core_get_ctrl_dev(), which dereferences it:    KASAN: null-ptr-deref in range [0x0000000000000040-0x0000000000000047]   RIP: serial_core_unregister_port   Call Trace:    serial8250_unregister_port    serial8250_remove    unbind_store  Return early when there is no port device, and read port-\u003Eport_dev under port_mutex.  Also clear port-\u003Eport_dev on the serial_core_register_port() error path, where the port device has already been removed.",
  "published": "2026-10-18T16:17:28Z",
  "severity": "Moderate",
  "cvss": 4.4,
  "epss": 0.00155,
  "epssPercentile": 0.04687,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-98747",
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "7.2.10-1",
      "fix": "DEBIAN-CVE-2026-98747",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-98747",
      "released": "2026-10-19T16:27:52Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T13:06:02Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}