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FKIE_CVE-2026-72190

Vulnerability from fkie_nvd - Published: 2026-08-15 06:21 - Updated: 2026-08-17 06:18
Severity
Summary
In the Linux kernel, the following vulnerability has been resolved: ntfs: fix mrec_lock ABBA deadlock in rename ntfs_file_fsync(), ntfs_dir_fsync() and __ntfs_write_inode() lock an inode's mrec_lock before taking the mrec_lock of its parent directory. ntfs_rename() takes old_ni->mrec_lock and old_dir_ni->mrec_lock before taking new_ni->mrec_lock for an existing target, or new_dir_ni->mrec_lock for a cross-directory rename. This can deadlock when ntfs_file_fsync() or __ntfs_write_inode() holds the target inode, or when ntfs_dir_fsync() holds a child target directory, while rename() holds the parent directory and waits for the target. Fix this by locking the existing target inode before taking any parent directory mrec_lock. For cross-directory renames where the target parent is a descendant of the source parent, lock the target parent before the source parent so the directory order matches the child-to-parent order used by ntfs_file_fsync(), ntfs_dir_fsync(), and __ntfs_write_inode().
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b3d09502b80dfe0bab9090ca532710da389f6c7f
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/eb94f5a41a193a425e09a63cb75dffd151d8f42e
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/ntfs/namei.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "b3d09502b80dfe0bab9090ca532710da389f6c7f",
              "status": "affected",
              "version": "af0db57d4293cc9fe6ce99fb5592dc2652228c9d",
              "versionType": "git"
            },
            {
              "lessThan": "eb94f5a41a193a425e09a63cb75dffd151d8f42e",
              "status": "affected",
              "version": "af0db57d4293cc9fe6ce99fb5592dc2652228c9d",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "fs/ntfs/namei.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "7.1"
            },
            {
              "lessThan": "7.1",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.1.*",
              "status": "unaffected",
              "version": "7.1.5",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nntfs: fix mrec_lock ABBA deadlock in rename\n\nntfs_file_fsync(), ntfs_dir_fsync() and __ntfs_write_inode() lock an\ninode\u0027s mrec_lock before taking the mrec_lock of its parent directory.\n\nntfs_rename() takes old_ni-\u003emrec_lock and old_dir_ni-\u003emrec_lock\nbefore taking new_ni-\u003emrec_lock for an existing target, or\nnew_dir_ni-\u003emrec_lock for a cross-directory rename.\nThis can deadlock when ntfs_file_fsync() or __ntfs_write_inode() holds\nthe target inode, or when ntfs_dir_fsync() holds a child target\ndirectory, while rename() holds the parent directory and waits for the\ntarget.\n\nFix this by locking the existing target inode before taking any parent\ndirectory mrec_lock. For cross-directory renames where the target parent\nis a descendant of the source parent, lock the target parent before the\nsource parent so the directory order matches the child-to-parent order used\nby ntfs_file_fsync(), ntfs_dir_fsync(), and __ntfs_write_inode()."
    }
  ],
  "id": "CVE-2026-72190",
  "lastModified": "2026-08-17T06:18:19.580",
  "metrics": {},
  "published": "2026-08-15T06:21:37.430",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/b3d09502b80dfe0bab9090ca532710da389f6c7f"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/eb94f5a41a193a425e09a63cb75dffd151d8f42e"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}



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