GHSA-J4HM-6C8X-4HFR

Vulnerability from github – Published: 2026-09-17 18:31 – Updated: 2026-09-17 18:31
VLAI
Details

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

hugetlbfs: release subpool on fill_super failure

hugetlbfs_fill_super() allocates a hugepage subpool when size or min_size mount options are specified. hugepage_new_subpool() may also reserve huge pages for min_size.

If root dentry creation fails after the subpool is created, the failure path frees the subpool with kfree(). This bypasses hugepage_put_subpool() and can leave min_size reservations charged.

Use hugepage_put_subpool() on the failure path, matching the normal put_super path.

Show details on source website
To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2026-90283"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-17T17:17:25Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nhugetlbfs: release subpool on fill_super failure\n\nhugetlbfs_fill_super() allocates a hugepage subpool when size or min_size\nmount options are specified.  hugepage_new_subpool() may also reserve huge\npages for min_size.\n\nIf root dentry creation fails after the subpool is created, the failure\npath frees the subpool with kfree().  This bypasses hugepage_put_subpool()\nand can leave min_size reservations charged.\n\nUse hugepage_put_subpool() on the failure path, matching the normal\nput_super path.",
  "id": "GHSA-j4hm-6c8x-4hfr",
  "modified": "2026-09-17T18:31:59Z",
  "published": "2026-09-17T18:31:59Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-90283"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/04f0354a4abf6793aa5b3f32e2b019ab206f344d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1d8be4ee81e73fcc52e58f47842d9a2277cfeaaa"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/308ab73e97c87bd0e142b11758faab7f88d82854"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5b7fc7a1ce2a5f2cd8ed80a883157c7108074e0b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/91c4f3a87862fd86594d5945512decbfa0b1d13d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/dc2bd517ac0bce4ec7498644bd16b6db502df8e2"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/dfe848cadfde4179a0691da34f4bed36ff7185b5"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f2d6cea221d777fab3ba18f805ba4c17c90e0b8b"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.