Vulnerability-Lookup

GHSA-P8FH-7HCC-PCWH

Vulnerability from github – Published: 2026-08-15 06:32 – Updated: 2026-08-15 06:32

Details

In the Linux kernel, the following vulnerability has been resolved:

mtd: virt-concat: free duplicate generated name

Every MTD registration runs mtd_virt_concat_create_join(). Once a virtual concat has already been registered, the function builds the same name again and takes the equal-name branch. That branch skips to the next item without freeing the newly allocated string.

Free the temporary name before continuing.

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-68468"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-15T06:19:57Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmtd: virt-concat: free duplicate generated name\n\nEvery MTD registration runs mtd_virt_concat_create_join().  Once a\nvirtual concat has already been registered, the function builds the same\nname again and takes the equal-name branch.  That branch skips to the\nnext item without freeing the newly allocated string.\n\nFree the temporary name before continuing.",
  "id": "GHSA-p8fh-7hcc-pcwh",
  "modified": "2026-08-15T06:32:07Z",
  "published": "2026-08-15T06:32:07Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-68468"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0e65079d28e5c461b6813ea5821be4dfff24ff63"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/caa0ecbeff4f7fbf70f22bd8ca598918bffb1b78"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-68468 (GCVE-0-2026-68468)

Vulnerability from cvelistv5 – Published: 2026-08-15 05:51 – Updated: 2026-08-17 05:06

Title

mtd: virt-concat: free duplicate generated name

Summary

In the Linux kernel, the following vulnerability has been resolved: mtd: virt-concat: free duplicate generated name Every MTD registration runs mtd_virt_concat_create_join(). Once a virtual concat has already been registered, the function builds the same name again and takes the equal-name branch. That branch skips to the next item without freeing the newly allocated string. Free the temporary name before continuing.

Severity

No CVSS data available.

Assigner

Linux mitre root

References

2 references

URL	Tags
https://git.kernel.org/stable/c/0e65079d28e5c461b…
https://git.kernel.org/stable/c/caa0ecbeff4f7fbf7…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 43db6366fc2de02050e66389f5628d3fdc9af10a , < 0e65079d28e5c461b6813ea5821be4dfff24ff63 (git) Affected: 43db6366fc2de02050e66389f5628d3fdc9af10a , < caa0ecbeff4f7fbf70f22bd8ca598918bffb1b78 (git)
Linux	Linux	Affected: 7.1 Unaffected: 0 , < 7.1 (semver) Unaffected: 7.1.5 , ≤ 7.1.* (semver) Unaffected: 7.2 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/mtd/mtd_virt_concat.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "0e65079d28e5c461b6813ea5821be4dfff24ff63",
              "status": "affected",
              "version": "43db6366fc2de02050e66389f5628d3fdc9af10a",
              "versionType": "git"
            },
            {
              "lessThan": "caa0ecbeff4f7fbf70f22bd8ca598918bffb1b78",
              "status": "affected",
              "version": "43db6366fc2de02050e66389f5628d3fdc9af10a",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/mtd/mtd_virt_concat.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "7.1"
            },
            {
              "lessThan": "7.1",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.1.*",
              "status": "unaffected",
              "version": "7.1.5",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.1.5",
                  "versionStartIncluding": "7.1",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2",
                  "versionStartIncluding": "7.1",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmtd: virt-concat: free duplicate generated name\n\nEvery MTD registration runs mtd_virt_concat_create_join().  Once a\nvirtual concat has already been registered, the function builds the same\nname again and takes the equal-name branch.  That branch skips to the\nnext item without freeing the newly allocated string.\n\nFree the temporary name before continuing."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-17T05:06:10.123Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/0e65079d28e5c461b6813ea5821be4dfff24ff63"
        },
        {
          "url": "https://git.kernel.org/stable/c/caa0ecbeff4f7fbf70f22bd8ca598918bffb1b78"
        }
      ],
      "title": "mtd: virt-concat: free duplicate generated name",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-68468",
    "datePublished": "2026-08-15T05:51:26.686Z",
    "dateReserved": "2026-07-30T09:28:09.396Z",
    "dateUpdated": "2026-08-17T05:06:10.123Z",
    "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.

Detection rules are retrieved from Rulezet.

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.

Action not permitted

GHSA-P8FH-7HCC-PCWH

CVE-2026-68468 (GCVE-0-2026-68468)

Tags

Sightings

Nomenclature