{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2026-89683",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2026-89683"
  ],
  "published": "2026-09-11T19:47:07Z",
  "summary": "nfsd: fix dentry ref leak on V4ROOT export filehandle lookup",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnfsd: fix dentry ref leak on V4ROOT export filehandle lookup\n\nnfsd_set_fh_dentry() leaks the dentry reference from\nexportfs_decode_fh_raw() when the NFS3_FHSIZE or NFS_FHSIZE\nswitch cases detect NFSEXP_V4ROOT and goto out. The out: label\ncalls exp_put() but never dput(dentry), and fhp->fh_dentry was\nnever assigned so fh_put() cannot compensate.\n\nA crafted NFSv3 filehandle targeting a V4ROOT export's fsid\ntriggers the leak on every request.",
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