ghsa-945m-m359-mmj7
Vulnerability from github
Published
2025-09-23 06:30
Modified
2025-09-23 06:30
Details

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

netfilter: nft_set_pipapo: fix null deref for empty set

Blamed commit broke the check for a null scratch map: - if (unlikely(!m || !*raw_cpu_ptr(m->scratch))) + if (unlikely(!raw_cpu_ptr(m->scratch)))

This should have been "if (!*raw_ ...)". Use the pattern of the avx2 version which is more readable.

This can only be reproduced if avx2 support isn't available.

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{
  "affected": [],
  "aliases": [
    "CVE-2025-39867"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-09-23T06:15:45Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nft_set_pipapo: fix null deref for empty set\n\nBlamed commit broke the check for a null scratch map:\n  -  if (unlikely(!m || !*raw_cpu_ptr(m-\u003escratch)))\n  +  if (unlikely(!raw_cpu_ptr(m-\u003escratch)))\n\nThis should have been \"if (!*raw_ ...)\".\nUse the pattern of the avx2 version which is more readable.\n\nThis can only be reproduced if avx2 support isn\u0027t available.",
  "id": "GHSA-945m-m359-mmj7",
  "modified": "2025-09-23T06:30:27Z",
  "published": "2025-09-23T06:30:27Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-39867"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/30c1d25b9870d551be42535067d5481668b5e6f3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/44b2be6d5994ddf07ecc86c01d3279bfa13e9ef6"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/51a321b480d1e753667f6aea497312461563f9fe"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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