configfs-tsm-report: Fix NULL dereference of tsm_ops

{
  "id": "e9c125c35db08041a6ae7b7cd3a4fd09b967a9e7c084934ed0dc1995c986bb44",
  "url": "https://osv.dev/vulnerability/CVE-2025-38210",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "configfs-tsm-report: Fix NULL dereference of tsm_ops",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: configfs-tsm-report: Fix NULL dereference of tsm_ops Unlike sysfs, the lifetime of configfs objects is controlled by userspace. There is no mechanism for the kernel to find and delete all created config-items. Instead, the configfs-tsm-report mechanism has an expectation that tsm_unregister() can happen at any time and cause established config-item access to start failing. That expectation is not fully satisfied. While tsm_report_read(), tsm_report_{is,is_bin}_visible(), and tsm_report_make_item() safely fail if tsm_ops have been unregistered, tsm_report_privlevel_store() tsm_report_provider_show() fail to check for ops registration. Add the missing checks for tsm_ops having been removed. Now, in supporting the ability for tsm_unregister() to always succeed, it leaves the problem of what to do with lingering config-items. The expectation is that the admin that arranges for the ->remove() (unbind) of the ${tsm_arch}-guest driver is also responsible for deletion of all open config-items. Until that deletion happens, ->probe() (reload / bind) of the ${tsm_arch}-guest driver fails. This allows for emergency shutdown / revocation of attestation interfaces, and requires coordinated restart.",
    "evidence": "osv:CVE-2025-38210",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.12.35",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.15.4",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2025-38210",
      "aliases": [
        "CVE-2025-38210"
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "70e6f7e2b98575621019aa40ac616be58ff984e0"
                },
                {
                  "fixed": "015f04ac884a454d4d8aaa7b67758f047742b1cf"
                },
                {
                  "fixed": "cefbafcbdef011d6ef9414902311afdfba3c33eb"
                },
                {
                  "fixed": "fba4ceaa242d2bdf4c04b77bda41d32d02d3925d"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-38210.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.7.0"
                },
                {
                  "fixed": "6.12.35"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.13.0"
                },
                {
                  "fixed": "6.15.4"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-38210.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:40.028572702Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/015f04ac884a454d4d8aaa7b67758f047742b1cf",
        "https://git.kernel.org/stable/c/cefbafcbdef011d6ef9414902311afdfba3c33eb",
        "https://git.kernel.org/stable/c/fba4ceaa242d2bdf4c04b77bda41d32d02d3925d",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/38xxx/CVE-2025-38210.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2025-38210",
        "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/2025/38xxx/CVE-2025-38210.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2025-38210",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 507387,
  "published_at": "2025-07-04T13:37:29.663+00:00"
}