Vulnerability-Lookup

GHSA-X738-FP96-2H57

Vulnerability from github – Published: 2025-07-04 15:31 – Updated: 2025-11-18 18:32

Details

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

5.5 (Medium)


                  
                    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2025-38210"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-07-04T14:15:29Z",
    "severity": "MODERATE"
  },
  "details": "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.",
  "id": "GHSA-x738-fp96-2h57",
  "modified": "2025-11-18T18:32:47Z",
  "published": "2025-07-04T15:31:09Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-38210"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/015f04ac884a454d4d8aaa7b67758f047742b1cf"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/cefbafcbdef011d6ef9414902311afdfba3c33eb"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/fba4ceaa242d2bdf4c04b77bda41d32d02d3925d"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

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

Vulnerability from cvelistv5 – Published: 2025-07-04 13:37 – Updated: 2026-11-05 20:52

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

3 references

URL	Tags
https://git.kernel.org/stable/c/015f04ac884a454d4…
https://git.kernel.org/stable/c/cefbafcbdef011d6e…
https://git.kernel.org/stable/c/fba4ceaa242d2bdf4…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 70e6f7e2b98575621019aa40ac616be58ff984e0 , < 015f04ac884a454d4d8aaa7b67758f047742b1cf (git) Affected: 70e6f7e2b98575621019aa40ac616be58ff984e0 , < cefbafcbdef011d6ef9414902311afdfba3c33eb (git) Affected: 70e6f7e2b98575621019aa40ac616be58ff984e0 , < fba4ceaa242d2bdf4c04b77bda41d32d02d3925d (git)
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)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2025-38210",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-11-05T20:51:31.334550Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-11-05T20:52:20.855Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/virt/coco/tsm.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "015f04ac884a454d4d8aaa7b67758f047742b1cf",
              "status": "affected",
              "version": "70e6f7e2b98575621019aa40ac616be58ff984e0",
              "versionType": "git"
            },
            {
              "lessThan": "cefbafcbdef011d6ef9414902311afdfba3c33eb",
              "status": "affected",
              "version": "70e6f7e2b98575621019aa40ac616be58ff984e0",
              "versionType": "git"
            },
            {
              "lessThan": "fba4ceaa242d2bdf4c04b77bda41d32d02d3925d",
              "status": "affected",
              "version": "70e6f7e2b98575621019aa40ac616be58ff984e0",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/virt/coco/tsm.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.7"
            },
            {
              "lessThan": "6.7",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.35",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.15.*",
              "status": "unaffected",
              "version": "6.15.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.16",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.35",
                  "versionStartIncluding": "6.7",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.15.4",
                  "versionStartIncluding": "6.7",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.16",
                  "versionStartIncluding": "6.7",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "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"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

Order JSON

How durations are calculated

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.

Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.

Publication & reservation Sightings KEV catalogs Other timestamps

Loading timeline…

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted