Vulnerability-Lookup

FKIE_CVE-2026-80535

Vulnerability from fkie_nvd - Published: 2026-08-26 15:17 - Updated: 2026-08-26 15:17

Severity

Summary

In the Linux kernel, the following vulnerability has been resolved: xfs: don't double-lock when deleting a self-referential directory LOLLM notices that the dirtree scrubber can detect a directory that refers to itself. In this case, it's not correct for the directory tree repair code to try to iolock/ilock both sc->ip and dp, because they're the same inode. Fix this by detecting that corner case and handling it appropriately.

References

	URL	Tags
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/17bc347cbdfb125eddac0a815b1f6c1f6eb56676
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/5fc643fb86599e29b38e7b2c2680b4b15bf8f772
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/c575904471570e69bce40fa638365c6c0403e2ff
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/ce2a7006ec5ed88db1b1669124ec85bc1714ccaa

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/xfs/scrub/dirtree_repair.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "17bc347cbdfb125eddac0a815b1f6c1f6eb56676",
              "status": "affected",
              "version": "3f31406aef493b3f19020909d29974e28253f91c",
              "versionType": "git"
            },
            {
              "lessThan": "ce2a7006ec5ed88db1b1669124ec85bc1714ccaa",
              "status": "affected",
              "version": "3f31406aef493b3f19020909d29974e28253f91c",
              "versionType": "git"
            },
            {
              "lessThan": "c575904471570e69bce40fa638365c6c0403e2ff",
              "status": "affected",
              "version": "3f31406aef493b3f19020909d29974e28253f91c",
              "versionType": "git"
            },
            {
              "lessThan": "5fc643fb86599e29b38e7b2c2680b4b15bf8f772",
              "status": "affected",
              "version": "3f31406aef493b3f19020909d29974e28253f91c",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "fs/xfs/scrub/dirtree_repair.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.10"
            },
            {
              "lessThan": "6.10",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.105",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.46",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.1.*",
              "status": "unaffected",
              "version": "7.1.10",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nxfs: don\u0027t double-lock when deleting a self-referential directory\n\nLOLLM notices that the dirtree scrubber can detect a directory that\nrefers to itself.  In this case, it\u0027s not correct for the directory tree\nrepair code to try to iolock/ilock both sc-\u003eip and dp, because they\u0027re\nthe same inode.  Fix this by detecting that corner case and handling it\nappropriately."
    }
  ],
  "id": "CVE-2026-80535",
  "lastModified": "2026-08-26T15:17:07.663",
  "metrics": {},
  "published": "2026-08-26T15:17:07.663",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/17bc347cbdfb125eddac0a815b1f6c1f6eb56676"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/5fc643fb86599e29b38e7b2c2680b4b15bf8f772"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/c575904471570e69bce40fa638365c6c0403e2ff"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/ce2a7006ec5ed88db1b1669124ec85bc1714ccaa"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}

CVE-2026-80535 (GCVE-0-2026-80535)

Vulnerability from cvelistv5 – Published: 2026-08-26 14:37 – Updated: 2026-08-26 14:37

Title

xfs: don't double-lock when deleting a self-referential directory

Summary

Severity

No CVSS data available.

Assigner

Linux mitre root

References

4 references

URL	Tags
https://git.kernel.org/stable/c/17bc347cbdfb125ed…
https://git.kernel.org/stable/c/ce2a7006ec5ed88db…
https://git.kernel.org/stable/c/c575904471570e69b…
https://git.kernel.org/stable/c/5fc643fb86599e29b…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 3f31406aef493b3f19020909d29974e28253f91c , < 17bc347cbdfb125eddac0a815b1f6c1f6eb56676 (git) Affected: 3f31406aef493b3f19020909d29974e28253f91c , < ce2a7006ec5ed88db1b1669124ec85bc1714ccaa (git) Affected: 3f31406aef493b3f19020909d29974e28253f91c , < c575904471570e69bce40fa638365c6c0403e2ff (git) Affected: 3f31406aef493b3f19020909d29974e28253f91c , < 5fc643fb86599e29b38e7b2c2680b4b15bf8f772 (git)
Linux	Linux	Affected: 6.10 Unaffected: 0 , < 6.10 (semver) Unaffected: 6.12.105 , ≤ 6.12.* (semver) Unaffected: 6.18.46 , ≤ 6.18.* (semver) Unaffected: 7.1.10 , ≤ 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": [
            "fs/xfs/scrub/dirtree_repair.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "17bc347cbdfb125eddac0a815b1f6c1f6eb56676",
              "status": "affected",
              "version": "3f31406aef493b3f19020909d29974e28253f91c",
              "versionType": "git"
            },
            {
              "lessThan": "ce2a7006ec5ed88db1b1669124ec85bc1714ccaa",
              "status": "affected",
              "version": "3f31406aef493b3f19020909d29974e28253f91c",
              "versionType": "git"
            },
            {
              "lessThan": "c575904471570e69bce40fa638365c6c0403e2ff",
              "status": "affected",
              "version": "3f31406aef493b3f19020909d29974e28253f91c",
              "versionType": "git"
            },
            {
              "lessThan": "5fc643fb86599e29b38e7b2c2680b4b15bf8f772",
              "status": "affected",
              "version": "3f31406aef493b3f19020909d29974e28253f91c",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "fs/xfs/scrub/dirtree_repair.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.10"
            },
            {
              "lessThan": "6.10",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.105",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.46",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.1.*",
              "status": "unaffected",
              "version": "7.1.10",
              "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": "6.12.105",
                  "versionStartIncluding": "6.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.46",
                  "versionStartIncluding": "6.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.1.10",
                  "versionStartIncluding": "6.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2",
                  "versionStartIncluding": "6.10",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nxfs: don\u0027t double-lock when deleting a self-referential directory\n\nLOLLM notices that the dirtree scrubber can detect a directory that\nrefers to itself.  In this case, it\u0027s not correct for the directory tree\nrepair code to try to iolock/ilock both sc-\u003eip and dp, because they\u0027re\nthe same inode.  Fix this by detecting that corner case and handling it\nappropriately."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-26T14:37:10.985Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/17bc347cbdfb125eddac0a815b1f6c1f6eb56676"
        },
        {
          "url": "https://git.kernel.org/stable/c/ce2a7006ec5ed88db1b1669124ec85bc1714ccaa"
        },
        {
          "url": "https://git.kernel.org/stable/c/c575904471570e69bce40fa638365c6c0403e2ff"
        },
        {
          "url": "https://git.kernel.org/stable/c/5fc643fb86599e29b38e7b2c2680b4b15bf8f772"
        }
      ],
      "title": "xfs: don\u0027t double-lock when deleting a self-referential directory",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-80535",
    "datePublished": "2026-08-26T14:37:10.985Z",
    "dateReserved": "2026-08-26T14:34:25.764Z",
    "dateUpdated": "2026-08-26T14:37:10.985Z",
    "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.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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