Vulnerability-Lookup

FKIE_CVE-2026-74730

Vulnerability from fkie_nvd - Published: 2026-08-22 16:16 - Updated: 2026-08-22 16:16

Severity

Summary

In the Linux kernel, the following vulnerability has been resolved: NFS: Pin the 'struct nfs_server' during a FREE_STATEID call Dan Aloni reports that he was able to hit a use-after-free bug if a FREE_STATEID operation gets delayed for whatever reason. Fix this by bumping the refcount of the 'struct nfs_server' object for the duration of the FREE_STATEID so it doesn't get cleaned up from underneath us while operations are still in flight.

References

	URL	Tags
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/80ed3d762628b36c9e4b22fac7c65b72ef3b13dd
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/af62f1af182d33a0de38308c012841885d8ab92e
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/caee6a68ffaa5016dfc01cd0b3dc1896a32e3abd
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/cf616096a0f3a2b60f7d68b6b39674a6867ded9c
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/d71dfffa512e71b166a889484e4c3b148a9a3af2
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/d858ab09e787106432d4d9830bad9dfedf02f890
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/ed1161ab6239761958b38d5667225634fc2be894
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/ed2f92ce2fc48463c41e0e540b9a3454889e8af8

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/nfs/nfs4proc.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "ed2f92ce2fc48463c41e0e540b9a3454889e8af8",
              "status": "affected",
              "version": "7c1d5fae4a87d3cf3e9ffd68bcdbaf6529013009",
              "versionType": "git"
            },
            {
              "lessThan": "d858ab09e787106432d4d9830bad9dfedf02f890",
              "status": "affected",
              "version": "7c1d5fae4a87d3cf3e9ffd68bcdbaf6529013009",
              "versionType": "git"
            },
            {
              "lessThan": "af62f1af182d33a0de38308c012841885d8ab92e",
              "status": "affected",
              "version": "7c1d5fae4a87d3cf3e9ffd68bcdbaf6529013009",
              "versionType": "git"
            },
            {
              "lessThan": "caee6a68ffaa5016dfc01cd0b3dc1896a32e3abd",
              "status": "affected",
              "version": "7c1d5fae4a87d3cf3e9ffd68bcdbaf6529013009",
              "versionType": "git"
            },
            {
              "lessThan": "ed1161ab6239761958b38d5667225634fc2be894",
              "status": "affected",
              "version": "7c1d5fae4a87d3cf3e9ffd68bcdbaf6529013009",
              "versionType": "git"
            },
            {
              "lessThan": "d71dfffa512e71b166a889484e4c3b148a9a3af2",
              "status": "affected",
              "version": "7c1d5fae4a87d3cf3e9ffd68bcdbaf6529013009",
              "versionType": "git"
            },
            {
              "lessThan": "80ed3d762628b36c9e4b22fac7c65b72ef3b13dd",
              "status": "affected",
              "version": "7c1d5fae4a87d3cf3e9ffd68bcdbaf6529013009",
              "versionType": "git"
            },
            {
              "lessThan": "cf616096a0f3a2b60f7d68b6b39674a6867ded9c",
              "status": "affected",
              "version": "7c1d5fae4a87d3cf3e9ffd68bcdbaf6529013009",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "fs/nfs/nfs4proc.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "3.10"
            },
            {
              "lessThan": "3.10",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.265",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.216",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.183",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.152",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.104",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.45",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.1.*",
              "status": "unaffected",
              "version": "7.1.9",
              "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\nNFS: Pin the \u0027struct nfs_server\u0027 during a FREE_STATEID call\n\nDan Aloni reports that he was able to hit a use-after-free bug if a\nFREE_STATEID operation gets delayed for whatever reason. Fix this by\nbumping the refcount of the \u0027struct nfs_server\u0027 object for the duration\nof the FREE_STATEID so it doesn\u0027t get cleaned up from underneath us\nwhile operations are still in flight."
    }
  ],
  "id": "CVE-2026-74730",
  "lastModified": "2026-08-22T16:16:48.137",
  "metrics": {},
  "published": "2026-08-22T16:16:48.137",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/80ed3d762628b36c9e4b22fac7c65b72ef3b13dd"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/af62f1af182d33a0de38308c012841885d8ab92e"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/caee6a68ffaa5016dfc01cd0b3dc1896a32e3abd"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/cf616096a0f3a2b60f7d68b6b39674a6867ded9c"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/d71dfffa512e71b166a889484e4c3b148a9a3af2"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/d858ab09e787106432d4d9830bad9dfedf02f890"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/ed1161ab6239761958b38d5667225634fc2be894"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/ed2f92ce2fc48463c41e0e540b9a3454889e8af8"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}

CVE-2026-74730 (GCVE-0-2026-74730)

Vulnerability from cvelistv5 – Published: 2026-08-22 15:33 – Updated: 2026-08-22 15:33

Title

NFS: Pin the 'struct nfs_server' during a FREE_STATEID call

Summary

Severity

No CVSS data available.

Assigner

Linux mitre root

References

8 references

URL	Tags
https://git.kernel.org/stable/c/ed2f92ce2fc48463c…
https://git.kernel.org/stable/c/d858ab09e78710643…
https://git.kernel.org/stable/c/af62f1af182d33a0d…
https://git.kernel.org/stable/c/caee6a68ffaa5016d…
https://git.kernel.org/stable/c/ed1161ab623976195…
https://git.kernel.org/stable/c/d71dfffa512e71b16…
https://git.kernel.org/stable/c/80ed3d762628b36c9…
https://git.kernel.org/stable/c/cf616096a0f3a2b60…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 7c1d5fae4a87d3cf3e9ffd68bcdbaf6529013009 , < ed2f92ce2fc48463c41e0e540b9a3454889e8af8 (git) Affected: 7c1d5fae4a87d3cf3e9ffd68bcdbaf6529013009 , < d858ab09e787106432d4d9830bad9dfedf02f890 (git) Affected: 7c1d5fae4a87d3cf3e9ffd68bcdbaf6529013009 , < af62f1af182d33a0de38308c012841885d8ab92e (git) Affected: 7c1d5fae4a87d3cf3e9ffd68bcdbaf6529013009 , < caee6a68ffaa5016dfc01cd0b3dc1896a32e3abd (git) Affected: 7c1d5fae4a87d3cf3e9ffd68bcdbaf6529013009 , < ed1161ab6239761958b38d5667225634fc2be894 (git) Affected: 7c1d5fae4a87d3cf3e9ffd68bcdbaf6529013009 , < d71dfffa512e71b166a889484e4c3b148a9a3af2 (git) Affected: 7c1d5fae4a87d3cf3e9ffd68bcdbaf6529013009 , < 80ed3d762628b36c9e4b22fac7c65b72ef3b13dd (git) Affected: 7c1d5fae4a87d3cf3e9ffd68bcdbaf6529013009 , < cf616096a0f3a2b60f7d68b6b39674a6867ded9c (git)
Linux	Linux	Affected: 3.10 Unaffected: 0 , < 3.10 (semver) Unaffected: 5.10.265 , ≤ 5.10.* (semver) Unaffected: 5.15.216 , ≤ 5.15.* (semver) Unaffected: 6.1.183 , ≤ 6.1.* (semver) Unaffected: 6.6.152 , ≤ 6.6.* (semver) Unaffected: 6.12.104 , ≤ 6.12.* (semver) Unaffected: 6.18.45 , ≤ 6.18.* (semver) Unaffected: 7.1.9 , ≤ 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/nfs/nfs4proc.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "ed2f92ce2fc48463c41e0e540b9a3454889e8af8",
              "status": "affected",
              "version": "7c1d5fae4a87d3cf3e9ffd68bcdbaf6529013009",
              "versionType": "git"
            },
            {
              "lessThan": "d858ab09e787106432d4d9830bad9dfedf02f890",
              "status": "affected",
              "version": "7c1d5fae4a87d3cf3e9ffd68bcdbaf6529013009",
              "versionType": "git"
            },
            {
              "lessThan": "af62f1af182d33a0de38308c012841885d8ab92e",
              "status": "affected",
              "version": "7c1d5fae4a87d3cf3e9ffd68bcdbaf6529013009",
              "versionType": "git"
            },
            {
              "lessThan": "caee6a68ffaa5016dfc01cd0b3dc1896a32e3abd",
              "status": "affected",
              "version": "7c1d5fae4a87d3cf3e9ffd68bcdbaf6529013009",
              "versionType": "git"
            },
            {
              "lessThan": "ed1161ab6239761958b38d5667225634fc2be894",
              "status": "affected",
              "version": "7c1d5fae4a87d3cf3e9ffd68bcdbaf6529013009",
              "versionType": "git"
            },
            {
              "lessThan": "d71dfffa512e71b166a889484e4c3b148a9a3af2",
              "status": "affected",
              "version": "7c1d5fae4a87d3cf3e9ffd68bcdbaf6529013009",
              "versionType": "git"
            },
            {
              "lessThan": "80ed3d762628b36c9e4b22fac7c65b72ef3b13dd",
              "status": "affected",
              "version": "7c1d5fae4a87d3cf3e9ffd68bcdbaf6529013009",
              "versionType": "git"
            },
            {
              "lessThan": "cf616096a0f3a2b60f7d68b6b39674a6867ded9c",
              "status": "affected",
              "version": "7c1d5fae4a87d3cf3e9ffd68bcdbaf6529013009",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "fs/nfs/nfs4proc.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "3.10"
            },
            {
              "lessThan": "3.10",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.265",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.216",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.183",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.152",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.104",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.45",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.1.*",
              "status": "unaffected",
              "version": "7.1.9",
              "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": "5.10.265",
                  "versionStartIncluding": "3.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.216",
                  "versionStartIncluding": "3.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.183",
                  "versionStartIncluding": "3.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.152",
                  "versionStartIncluding": "3.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.104",
                  "versionStartIncluding": "3.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.45",
                  "versionStartIncluding": "3.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.1.9",
                  "versionStartIncluding": "3.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2",
                  "versionStartIncluding": "3.10",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nNFS: Pin the \u0027struct nfs_server\u0027 during a FREE_STATEID call\n\nDan Aloni reports that he was able to hit a use-after-free bug if a\nFREE_STATEID operation gets delayed for whatever reason. Fix this by\nbumping the refcount of the \u0027struct nfs_server\u0027 object for the duration\nof the FREE_STATEID so it doesn\u0027t get cleaned up from underneath us\nwhile operations are still in flight."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-22T15:33:19.659Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/ed2f92ce2fc48463c41e0e540b9a3454889e8af8"
        },
        {
          "url": "https://git.kernel.org/stable/c/d858ab09e787106432d4d9830bad9dfedf02f890"
        },
        {
          "url": "https://git.kernel.org/stable/c/af62f1af182d33a0de38308c012841885d8ab92e"
        },
        {
          "url": "https://git.kernel.org/stable/c/caee6a68ffaa5016dfc01cd0b3dc1896a32e3abd"
        },
        {
          "url": "https://git.kernel.org/stable/c/ed1161ab6239761958b38d5667225634fc2be894"
        },
        {
          "url": "https://git.kernel.org/stable/c/d71dfffa512e71b166a889484e4c3b148a9a3af2"
        },
        {
          "url": "https://git.kernel.org/stable/c/80ed3d762628b36c9e4b22fac7c65b72ef3b13dd"
        },
        {
          "url": "https://git.kernel.org/stable/c/cf616096a0f3a2b60f7d68b6b39674a6867ded9c"
        }
      ],
      "title": "NFS: Pin the \u0027struct nfs_server\u0027 during a FREE_STATEID call",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-74730",
    "datePublished": "2026-08-22T15:33:19.659Z",
    "dateReserved": "2026-08-15T05:44:03.930Z",
    "dateUpdated": "2026-08-22T15:33:19.659Z",
    "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

FKIE_CVE-2026-74730

CVE-2026-74730 (GCVE-0-2026-74730)

Tags

Sightings

Nomenclature