ghsa-q638-mxxh-qchw
Vulnerability from github
Published
2025-09-15 15:31
Modified
2025-11-03 18:31
Details

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

btrfs: abort transaction on unexpected eb generation at btrfs_copy_root()

If we find an unexpected generation for the extent buffer we are cloning at btrfs_copy_root(), we just WARN_ON() and don't error out and abort the transaction, meaning we allow to persist metadata with an unexpected generation. Instead of warning only, abort the transaction and return -EUCLEAN.

Show details on source website

To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2025-39800"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-09-15T13:15:35Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: abort transaction on unexpected eb generation at btrfs_copy_root()\n\nIf we find an unexpected generation for the extent buffer we are cloning\nat btrfs_copy_root(), we just WARN_ON() and don\u0027t error out and abort the\ntransaction, meaning we allow to persist metadata with an unexpected\ngeneration. Instead of warning only, abort the transaction and return\n-EUCLEAN.",
  "id": "GHSA-q638-mxxh-qchw",
  "modified": "2025-11-03T18:31:40Z",
  "published": "2025-09-15T15:31:21Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-39800"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/33e8f24b52d2796b8cfb28c19a1a7dd6476323a8"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4290e34fb87ae556b12c216efd0ae91583446b7a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4734255ef39b416864139dcda96a387fe5f33a6a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/da2124719f386b6e5d4d4b1a2e67c440e4d5892f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f4f5bd9251a4cbe55aaa05725c6c3c32ad1f74b3"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.