{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "199652309a4d6635fca19d7528d73ab9e219bd9a"
            },
            {
              "fixed": "9d8b21820caed9128945fffcedf03e2a4c21eee2"
            },
            {
              "fixed": "5fc54e04dad90b15d0430118b3f288a1d64e66c9"
            },
            {
              "fixed": "27e396a89f76f742abdbe9f8c4a58a6e806fdf59"
            },
            {
              "fixed": "dbf30e661ceb9a52c94c85719716391dcc29142a"
            },
            {
              "fixed": "5e006ac90a4d331db1dd712b91fec849b45ffc01"
            },
            {
              "fixed": "c3bbcb32deecc06ebb1762398399b566d5ff2fc9"
            },
            {
              "fixed": "44b16b02608058fc72198ac0205969f0f43065df"
            },
            {
              "fixed": "5b76268dac968612f7283d59b539036de955b7d9"
            }
          ],
          "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": "5.10.271"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.11.0"
            },
            {
              "fixed": "5.15.222"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.16.0"
            },
            {
              "fixed": "6.1.189"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.158"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.112"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.55"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.2.9"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98476.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ns390/cio: Fix NULL pointer dereference in ccw_device_get_util_str()\n\nThe channel path registry entry associated with a CHPID may be removed\nwhile the subchannel's PMCW still references that CHPID. In this case,\nchpid_to_chp() can return NULL, leading to a NULL pointer dereference.\n\nAdd the missing NULL check before dereferencing the returned pointer.",
  "id": "CVE-2026-98476",
  "modified": "2026-10-20T02:30:23.418030409Z",
  "published": "2026-10-18T15:15:45.100Z",
  "references": [
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/27e396a89f76f742abdbe9f8c4a58a6e806fdf59"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/44b16b02608058fc72198ac0205969f0f43065df"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5b76268dac968612f7283d59b539036de955b7d9"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5e006ac90a4d331db1dd712b91fec849b45ffc01"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5fc54e04dad90b15d0430118b3f288a1d64e66c9"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9d8b21820caed9128945fffcedf03e2a4c21eee2"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c3bbcb32deecc06ebb1762398399b566d5ff2fc9"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/dbf30e661ceb9a52c94c85719716391dcc29142a"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98476.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-98476"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "s390/cio: Fix NULL pointer dereference in ccw_device_get_util_str()"
}