GHSA-6C86-HP8G-CHH5

Vulnerability from github – Published: 2026-05-05 18:33 – Updated: 2026-05-08 15:31
VLAI?
Details

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

netfilter: nft_ct: drop pending enqueued packets on removal

Packets sitting in nfqueue might hold a reference to:

  • templates that specify the conntrack zone, because a percpu area is used and module removal is possible.
  • conntrack timeout policies and helper, where object removal leave a stale reference.

Since these objects can just go away, drop enqueued packets to avoid stale reference to them.

If there is a need for finer grain removal, this logic can be revisited to make selective packet drop upon dependencies.

Severity ?
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Show details on source website
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{
  "affected": [],
  "aliases": [
    "CVE-2026-43060"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-05T16:16:15Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nft_ct: drop pending enqueued packets on removal\n\nPackets sitting in nfqueue might hold a reference to:\n\n- templates that specify the conntrack zone, because a percpu area is\n  used and module removal is possible.\n- conntrack timeout policies and helper, where object removal leave\n  a stale reference.\n\nSince these objects can just go away, drop enqueued packets to avoid\nstale reference to them.\n\nIf there is a need for finer grain removal, this logic can be revisited\nto make selective packet drop upon dependencies.",
  "id": "GHSA-6c86-hp8g-chh5",
  "modified": "2026-05-08T15:31:15Z",
  "published": "2026-05-05T18:33:24Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-43060"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/36eae0956f659e48d5366d9b083d9417f3263ddc"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3da0b946835f33bf36b459ead764c61a761e689b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6802ff8beceb9c4254318e81c1395720438f2cc2"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/77da55dee67720e2b8d2db49a53334e6c017ee7b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8a64e76933672b08bd85b63086f33432070fd729"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ab50302190b303f847c4eba0e31a01a56dec596e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e68a8db3a0546482b34e9ca5ca886bcf73eb37bb"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f29a055e4f593e577805b41228b142b58f48df1b"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}


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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
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