{
  "affected": [
    {
      "ecosystem_specific": {
        "urgency": "not yet assigned"
      },
      "package": {
        "ecosystem": "Debian:14",
        "name": "linux"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "7.0.13-1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "details": "In the Linux kernel, the following vulnerability has been resolved:  VFS: fix possible failure to unlock in nfsd4_create_file()  atomic_create() in fs/namei.c drops the reference to the dentry when it returns an error. This behaviour was imported into dentry_create() so that it will drop the reference if an error is returned from atomic_create(), though not if vfs_create() returns an error (in the case where -\u003eatomic_create is not supported).  The caller - nfsd4_create_file() - is made aware of this by checking path-\u003edentry, which will either be a counted reference to a dentry, or an error pointer.  However the change to use start_creating()/end_creating() (which landed shortly before the dentry_create() change landed, though was likely developed around the same time) means that nfsd4_create_file() *needs* a valid dentry so that it can unlock the parent.  The net result is that if NFSD exports a filesystem which uses -\u003eatomic_create, and if a call to -\u003eatomic_create returns an error, then nfsd4_create_file() will pass an error pointer to end_creating() and the parent will not be unlocked.  Fix this by changing dentry_create() to make sure path-\u003edentry is always a valid dentry, never an error-pointer.  The actual error is already returned a different way.  Note that if -\u003eatomic_create() returns a different dentry (which may not be possible in practice) we are guaranteed (because it is only ever provided by d_spliace_alias()) that it will have the same d_parent and so it will have the same effect when passed to end_creating().",
  "id": "DEBIAN-CVE-2026-53244",
  "modified": "2026-09-14T16:47:31.939209515Z",
  "published": "2026-06-25T09:16:42.350Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://security-tracker.debian.org/tracker/CVE-2026-53244"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "upstream": [
    "CVE-2026-53244"
  ]
}