afs: Fix missing NULL pointer check in afs_break_some_callbacks()

{
  "id": "58caecafb46c71e4a117483e941f098aed37cdbb273b35ca13093c17e9613265",
  "url": "https://osv.dev/vulnerability/CVE-2026-72373",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "afs: Fix missing NULL pointer check in afs_break_some_callbacks()",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: afs: Fix missing NULL pointer check in afs_break_some_callbacks() Fix afs_break_some_callbacks() to check to see if afs_lookup_volume_rcu() returned NULL (e.g. the specified volume is unknown).",
    "evidence": "osv:CVE-2026-72373",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.12.97",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.18.40",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "7.1.5",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "CVE-2026-72373",
      "aliases": [
        "CVE-2026-72373"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "8230fd8217b7ea76f838ae88e4a5a8e54f37099f"
                },
                {
                  "fixed": "a99a617701186dc68c7b330d35fc2253f48e2ab2"
                },
                {
                  "fixed": "5492799ec5d27be3bd454dcaf046bc7054f637ae"
                },
                {
                  "fixed": "e3e59ff22a0de01ed0cf3a3e25558811abc3b70a"
                },
                {
                  "fixed": "794a01110390c1b76f59ece773fb0fbfd89c6f5c"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-72373.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.8.0"
                },
                {
                  "fixed": "6.12.97"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.13.0"
                },
                {
                  "fixed": "6.18.40"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.19.0"
                },
                {
                  "fixed": "7.1.5"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-72373.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:51.290422837Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/5492799ec5d27be3bd454dcaf046bc7054f637ae",
        "https://git.kernel.org/stable/c/794a01110390c1b76f59ece773fb0fbfd89c6f5c",
        "https://git.kernel.org/stable/c/a99a617701186dc68c7b330d35fc2253f48e2ab2",
        "https://git.kernel.org/stable/c/e3e59ff22a0de01ed0cf3a3e25558811abc3b70a",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72373.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-72373",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
      ],
      "provider_metadata": {
        "cna_assigner": "Linux",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72373.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-72373",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 520005,
  "published_at": "2026-08-15T05:56:08.564+00:00"
}