GHSA-PCHW-PCF7-8P47

Vulnerability from github – Published: 2025-12-24 12:30 – Updated: 2026-07-30 06:32
VLAI
Details

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

NFSv4/pNFS: Clear NFS_INO_LAYOUTCOMMIT in pnfs_mark_layout_stateid_invalid

Fixes a crash when layout is null during this call stack:

write_inode -> nfs4_write_inode -> pnfs_layoutcommit_inode

pnfs_set_layoutcommit relies on the lseg refcount to keep the layout around. Need to clear NFS_INO_LAYOUTCOMMIT otherwise we might attempt to reference a null layout.

Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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{
  "affected": [],
  "aliases": [
    "CVE-2025-68349"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-12-24T11:15:58Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nNFSv4/pNFS: Clear NFS_INO_LAYOUTCOMMIT in pnfs_mark_layout_stateid_invalid\n\nFixes a crash when layout is null during this call stack:\n\nwrite_inode\n    -\u003e nfs4_write_inode\n        -\u003e pnfs_layoutcommit_inode\n\npnfs_set_layoutcommit relies on the lseg refcount to keep the layout\naround. Need to clear NFS_INO_LAYOUTCOMMIT otherwise we might attempt\nto reference a null layout.",
  "id": "GHSA-pchw-pcf7-8p47",
  "modified": "2026-07-30T06:32:25Z",
  "published": "2025-12-24T12:30:29Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-68349"
    },
    {
      "type": "WEB",
      "url": "https://cert-portal.siemens.com/productcert/html/ssa-019113.html"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/084bebe82ad86f718a3af84f34761863e63164ed"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/104080582ae0aa6dce6c6d75ff89062efe84673b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/38694f9aae00459ab443a7dc8b3949a6b33b560a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/59947dff0fb7c19c09ce6dccbcd253fd542b6c25"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b6e4e3a08c03200cc4b8067ec8ab3172a989d6fc"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ca2e7fdad7c683b64821c94a58b9b68733214dad"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e0f8058f2cb56de0b7572f51cd563ca5debce746"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f718f9ea6094843b8c059b073af49ad61e9f49bb"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}



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