Vulnerability-Lookup

GHSA-M2JH-WWH7-6PVF

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:

lockd: Plug nlm_file leak when nlm_do_fopen() fails

A client can repeatedly drive nlm_do_fopen() failures by presenting file handles that the underlying export rejects. After kzalloc_obj() succeeds in nlm_lookup_file(), the freshly allocated nlm_file is not yet inserted into nlm_files[]. The nlm_do_fopen() failure path jumps to out_unlock, which releases nlm_file_mutex and returns without freeing the allocation, so each failure leaks one nlm_file.

Route the failure through out_free so kfree() runs before the function returns.

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{
  "affected": [],
  "aliases": [
    "CVE-2026-72219"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-15T06:21:40Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nlockd: Plug nlm_file leak when nlm_do_fopen() fails\n\nA client can repeatedly drive nlm_do_fopen() failures by presenting\nfile handles that the underlying export rejects. After kzalloc_obj()\nsucceeds in nlm_lookup_file(), the freshly allocated nlm_file is not\nyet inserted into nlm_files[]. The nlm_do_fopen() failure path jumps\nto out_unlock, which releases nlm_file_mutex and returns without\nfreeing the allocation, so each failure leaks one nlm_file.\n\nRoute the failure through out_free so kfree() runs before the\nfunction returns.",
  "id": "GHSA-m2jh-wwh7-6pvf",
  "modified": "2026-08-15T06:32:16Z",
  "published": "2026-08-15T06:32:16Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-72219"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1161c4b5bd0048c8148e919f818a33cff3623ef0"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1403f1221a35a6caf959bb7bf005741f17263c66"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/39f59bf67231ed2eb0cdf6337194360e964b609a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3f2dc01b9cb516d4727a3b9263ee58c71ca00ba9"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/bca74fff138429f3d5802865f38fc883d53a4f1a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d7c677feb3aa1f42b1026d75a8ea61338b51e4fb"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ddfbd816273b4e9c9b836f5b8773664c6f40f807"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f16a1513452edb532fec81e591c64c320866719c"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-72219 (GCVE-0-2026-72219)

Vulnerability from cvelistv5 – Published: 2026-08-15 05:54 – Updated: 2026-08-17 05:10

Title

lockd: Plug nlm_file leak when nlm_do_fopen() fails

Summary

In the Linux kernel, the following vulnerability has been resolved: lockd: Plug nlm_file leak when nlm_do_fopen() fails A client can repeatedly drive nlm_do_fopen() failures by presenting file handles that the underlying export rejects. After kzalloc_obj() succeeds in nlm_lookup_file(), the freshly allocated nlm_file is not yet inserted into nlm_files[]. The nlm_do_fopen() failure path jumps to out_unlock, which releases nlm_file_mutex and returns without freeing the allocation, so each failure leaks one nlm_file. Route the failure through out_free so kfree() runs before the function returns.

Severity

No CVSS data available.

Assigner

Linux mitre root

References

8 references

URL	Tags
https://git.kernel.org/stable/c/bca74fff138429f3d…
https://git.kernel.org/stable/c/d7c677feb3aa1f42b…
https://git.kernel.org/stable/c/39f59bf67231ed2eb…
https://git.kernel.org/stable/c/ddfbd816273b4e9c9…
https://git.kernel.org/stable/c/1403f1221a35a6caf…
https://git.kernel.org/stable/c/1161c4b5bd0048c81…
https://git.kernel.org/stable/c/3f2dc01b9cb516d47…
https://git.kernel.org/stable/c/f16a1513452edb532…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: e580323ac0b51ad10ec2e181d1f777479b7983e7 , < bca74fff138429f3d5802865f38fc883d53a4f1a (git) Affected: 7f024fcd5c97dc70bb9121c80407cf3cf9be7159 , < d7c677feb3aa1f42b1026d75a8ea61338b51e4fb (git) Affected: 7f024fcd5c97dc70bb9121c80407cf3cf9be7159 , < 39f59bf67231ed2eb0cdf6337194360e964b609a (git) Affected: 7f024fcd5c97dc70bb9121c80407cf3cf9be7159 , < ddfbd816273b4e9c9b836f5b8773664c6f40f807 (git) Affected: 7f024fcd5c97dc70bb9121c80407cf3cf9be7159 , < 1403f1221a35a6caf959bb7bf005741f17263c66 (git) Affected: 7f024fcd5c97dc70bb9121c80407cf3cf9be7159 , < 1161c4b5bd0048c8148e919f818a33cff3623ef0 (git) Affected: 7f024fcd5c97dc70bb9121c80407cf3cf9be7159 , < 3f2dc01b9cb516d4727a3b9263ee58c71ca00ba9 (git) Affected: 7f024fcd5c97dc70bb9121c80407cf3cf9be7159 , < f16a1513452edb532fec81e591c64c320866719c (git) Affected: 5.10.220 , < 5.10.261 (semver)
Linux	Linux	Affected: 5.15 Unaffected: 0 , < 5.15 (semver) Unaffected: 5.10.261 , ≤ 5.10.* (semver) Unaffected: 5.15.212 , ≤ 5.15.* (semver) Unaffected: 6.1.178 , ≤ 6.1.* (semver) Unaffected: 6.6.145 , ≤ 6.6.* (semver) Unaffected: 6.12.97 , ≤ 6.12.* (semver) Unaffected: 6.18.40 , ≤ 6.18.* (semver) Unaffected: 7.1.5 , ≤ 7.1.* (semver) Unaffected: 7.2 , ≤ * (original_commit_for_fix)

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{
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            },
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            },
            {
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              "status": "unaffected",
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              "status": "unaffected",
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              "versionType": "semver"
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              "status": "unaffected",
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              "status": "unaffected",
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              "status": "unaffected",
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        },
        {
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}

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-M2JH-WWH7-6PVF

CVE-2026-72219 (GCVE-0-2026-72219)

Tags

Sightings

Nomenclature