{
  "affected": [
    {
      "ecosystem_specific": {
        "urgency": "not yet assigned"
      },
      "package": {
        "ecosystem": "Debian:12",
        "name": "linux"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "6.1.55-1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "urgency": "not yet assigned"
      },
      "package": {
        "ecosystem": "Debian:13",
        "name": "linux"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "6.5.6-1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "urgency": "not yet assigned"
      },
      "package": {
        "ecosystem": "Debian:14",
        "name": "linux"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "6.5.6-1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "details": "In the Linux kernel, the following vulnerability has been resolved:  kobject: Add sanity check for kset-\u003ekobj.ktype in kset_register()  When I register a kset in the following way: \tstatic struct kset my_kset; \tkobject_set_name(\u0026my_kset.kobj, \"my_kset\");         ret = kset_register(\u0026my_kset);  A null pointer dereference exception is occurred: [ 4453.568337] Unable to handle kernel NULL pointer dereference at \\ virtual address 0000000000000028 ... ... [ 4453.810361] Call trace: [ 4453.813062]  kobject_get_ownership+0xc/0x34 [ 4453.817493]  kobject_add_internal+0x98/0x274 [ 4453.822005]  kset_register+0x5c/0xb4 [ 4453.825820]  my_kobj_init+0x44/0x1000 [my_kset] ... ...  Because I didn't initialize my_kset.kobj.ktype.  According to the description in Documentation/core-api/kobject.rst:  - A ktype is the type of object that embeds a kobject.  Every structure    that embeds a kobject needs a corresponding ktype.  So add sanity check to make sure kset-\u003ekobj.ktype is not NULL.",
  "id": "DEBIAN-CVE-2023-53480",
  "modified": "2026-09-01T19:48:29.932256071Z",
  "published": "2025-10-01T12:15:50.600Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://security-tracker.debian.org/tracker/CVE-2023-53480"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "upstream": [
    "CVE-2023-53480"
  ]
}