Vulnerability-Lookup

GHSA-JHVQ-4R2H-7C2Q

Vulnerability from github – Published: 2026-05-27 15:33 – Updated: 2026-08-03 12:32

Details

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

netfilter: nf_tables: revert commit_mutex usage in reset path

It causes circular lock dependency between commit_mutex, nfnl_subsys_ipset and nlk_cb_mutex when nft reset, ipset list, and iptables-nft with '-m set' rule run at the same time.

Previous patches made it safe to run individual reset handlers concurrently so commit_mutex is no longer required to prevent this.

Severity

5.5 (Medium)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2026-45901"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-27T14:17:04Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nf_tables: revert commit_mutex usage in reset path\n\nIt causes circular lock dependency between commit_mutex, nfnl_subsys_ipset\nand nlk_cb_mutex when nft reset, ipset list, and iptables-nft with \u0027-m set\u0027\nrule run at the same time.\n\nPrevious patches made it safe to run individual reset handlers concurrently\nso commit_mutex is no longer required to prevent this.",
  "id": "GHSA-jhvq-4r2h-7c2q",
  "modified": "2026-08-03T12:32:35Z",
  "published": "2026-05-27T15:33:15Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-45901"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7f261bb906bf527c4a6e2a646e2d5f3679f2a8bc"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d66bedfe97a2bc321fa8118e669aae988038f729"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ee3978b6a0dcd4215cb7cedcba705a12174786a7"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f6410d18c1e2da325df02be989d5bca5ed38b086"
    }
  ],
  "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-2026-45901 (GCVE-0-2026-45901)

Vulnerability from cvelistv5 – Published: 2026-05-27 12:17 – Updated: 2026-08-03 09:32

Title

netfilter: nf_tables: revert commit_mutex usage in reset path

Summary

In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: revert commit_mutex usage in reset path It causes circular lock dependency between commit_mutex, nfnl_subsys_ipset and nlk_cb_mutex when nft reset, ipset list, and iptables-nft with '-m set' rule run at the same time. Previous patches made it safe to run individual reset handlers concurrently so commit_mutex is no longer required to prevent this.

Severity

No CVSS data available.

Assigner

Linux mitre root

References

4 references

URL	Tags
https://git.kernel.org/stable/c/d66bedfe97a2bc321…
https://git.kernel.org/stable/c/f6410d18c1e2da325…
https://git.kernel.org/stable/c/ee3978b6a0dcd4215…
https://git.kernel.org/stable/c/7f261bb906bf527c4…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 3cb03edb4de33fd04c4ea55f47397b96a8657c53 , < d66bedfe97a2bc321fa8118e669aae988038f729 (git) Affected: 3cb03edb4de33fd04c4ea55f47397b96a8657c53 , < f6410d18c1e2da325df02be989d5bca5ed38b086 (git) Affected: 3cb03edb4de33fd04c4ea55f47397b96a8657c53 , < ee3978b6a0dcd4215cb7cedcba705a12174786a7 (git) Affected: 3cb03edb4de33fd04c4ea55f47397b96a8657c53 , < 7f261bb906bf527c4a6e2a646e2d5f3679f2a8bc (git) Affected: fb1adb05ea87b6149e65a31e511756c4f470d0cd (git) Affected: f123293db16dcd0cd81b246ae60e6362f0025d0a (git) Affected: 6.1.107 , < 6.2 (semver) Affected: 6.6.48 , < 6.7 (semver)
Linux	Linux	Affected: 6.7 Unaffected: 0 , < 6.7 (semver) Unaffected: 6.12.101 , ≤ 6.12.* (semver) Unaffected: 6.18.42 , ≤ 6.18.* (semver) Unaffected: 6.19.4 , ≤ 6.19.* (semver) Unaffected: 7.0 , ≤ * (original_commit_for_fix)

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{
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        {
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              "status": "unaffected",
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              "status": "unaffected",
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    "datePublished": "2026-05-27T12:17:09.861Z",
    "dateReserved": "2026-05-13T15:03:33.084Z",
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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.
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