CVE-2025-38210 (GCVE-0-2025-38210)

Vulnerability from cvelistv5 – Published: 2025-07-04 13:37 – Updated: 2026-11-05 20:52
VLAI
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.
Severity
No CVSS data available.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-05 20:51 UTC
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 6641 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 70e6f7e2b98575621019aa40ac616be58ff984e0 , < 015f04ac884a454d4d8aaa7b67758f047742b1cf (git)
Affected: 70e6f7e2b98575621019aa40ac616be58ff984e0 , < cefbafcbdef011d6ef9414902311afdfba3c33eb (git)
Affected: 70e6f7e2b98575621019aa40ac616be58ff984e0 , < fba4ceaa242d2bdf4c04b77bda41d32d02d3925d (git)
guessed Create a notification for this product.
Linux Linux Affected: 6.7
Unaffected: 0 , < 6.7 (semver)
Unaffected: 6.12.35 , ≤ 6.12.* (semver)
Unaffected: 6.15.4 , ≤ 6.15.* (semver)
Unaffected: 6.16 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Show details on NVD website
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              "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nconfigfs-tsm-report: Fix NULL dereference of tsm_ops\n\nUnlike sysfs, the lifetime of configfs objects is controlled by\nuserspace. There is no mechanism for the kernel to find and delete all\ncreated config-items. Instead, the configfs-tsm-report mechanism has an\nexpectation that tsm_unregister() can happen at any time and cause\nestablished config-item access to start failing.\n\nThat expectation is not fully satisfied. While tsm_report_read(),\ntsm_report_{is,is_bin}_visible(), and tsm_report_make_item() safely fail\nif tsm_ops have been unregistered, tsm_report_privlevel_store()\ntsm_report_provider_show() fail to check for ops registration. Add the\nmissing checks for tsm_ops having been removed.\n\nNow, in supporting the ability for tsm_unregister() to always succeed,\nit leaves the problem of what to do with lingering config-items. The\nexpectation is that the admin that arranges for the -\u003eremove() (unbind)\nof the ${tsm_arch}-guest driver is also responsible for deletion of all\nopen config-items. Until that deletion happens, -\u003eprobe() (reload /\nbind) of the ${tsm_arch}-guest driver fails.\n\nThis allows for emergency shutdown / revocation of attestation\ninterfaces, and requires coordinated restart."
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-05-11T21:23:23.157Z",
            "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "shortName": "Linux"
          },
          "references": [
            {
              "url": "https://git.kernel.org/stable/c/015f04ac884a454d4d8aaa7b67758f047742b1cf"
            },
            {
              "url": "https://git.kernel.org/stable/c/cefbafcbdef011d6ef9414902311afdfba3c33eb"
            },
            {
              "url": "https://git.kernel.org/stable/c/fba4ceaa242d2bdf4c04b77bda41d32d02d3925d"
            }
          ],
          "title": "configfs-tsm-report: Fix NULL dereference of tsm_ops",
          "x_generator": {
            "engine": "bippy-1.2.0"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "assignerShortName": "Linux",
        "cveId": "CVE-2025-38210",
        "datePublished": "2025-07-04T13:37:29.663Z",
        "dateReserved": "2025-04-16T04:51:23.994Z",
        "dateUpdated": "2026-11-05T20:52:20.855Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
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  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

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