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GHSA-FF5J-329X-2XX2

Vulnerability from github – Published: 2026-09-24 18:31 – Updated: 2026-09-24 18:31

Details

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

bfs: handle set_blocksize failures

bfs uses buffer_heads, which don't handle block size > PAGE_SIZE well. Without this, mounting will hit the

BUG_ON(offset >= folio_size(folio));

in folio_set_bh on the first __bread_gfp call.

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{
  "affected": [],
  "aliases": [
    "CVE-2026-97489"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-24T17:17:26Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nbfs: handle set_blocksize failures\n\nbfs uses buffer_heads, which don\u0027t handle block size \u003e PAGE_SIZE well.\nWithout this, mounting will hit the\n\n\tBUG_ON(offset \u003e= folio_size(folio));\n\nin folio_set_bh on the first __bread_gfp call.",
  "id": "GHSA-ff5j-329x-2xx2",
  "modified": "2026-09-24T18:31:34Z",
  "published": "2026-09-24T18:31:34Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-97489"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2430e3380936df0b648af720cae624eef035a2d1"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7cc713b29eecc0189a184e82f42d174fddaa9e1e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ab1d6160d26e6ee8939e994999be9b45e90a42ef"
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}

CVE-2026-97489 (GCVE-0-2026-97489)

Vulnerability from cvelistv5 – Published: 2026-09-24 16:04 – Updated: 2026-09-24 16:04

Title

bfs: handle set_blocksize failures

Summary

In the Linux kernel, the following vulnerability has been resolved: bfs: handle set_blocksize failures bfs uses buffer_heads, which don't handle block size > PAGE_SIZE well. Without this, mounting will hit the BUG_ON(offset >= folio_size(folio)); in folio_set_bh on the first __bread_gfp call.

Severity

No CVSS data available.

Assigner

Linux mitre root

References

3 references

URL	Tags
https://git.kernel.org/stable/c/7cc713b29eecc0189…
https://git.kernel.org/stable/c/ab1d6160d26e6ee89…
https://git.kernel.org/stable/c/2430e3380936df0b6…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 7cc713b29eecc0189a184e82f42d174fddaa9e1e (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < ab1d6160d26e6ee8939e994999be9b45e90a42ef (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 2430e3380936df0b648af720cae624eef035a2d1 (git) Affected: 0 , < 6.12.111 (semver) Affected: 0 , < 6.18.53 (semver)
Linux	Linux	Unaffected: 6.12.111 , ≤ 6.12.* (semver) Unaffected: 6.18.53 , ≤ 6.18.* (semver) Unaffected: 7.2 , ≤ * (original_commit_for_fix)

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          "programFiles": [
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbfs: handle set_blocksize failures\n\nbfs uses buffer_heads, which don\u0027t handle block size \u003e PAGE_SIZE well.\nWithout this, mounting will hit the\n\n\tBUG_ON(offset \u003e= folio_size(folio));\n\nin folio_set_bh on the first __bread_gfp call."
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    "datePublished": "2026-09-24T16:04:37.759Z",
    "dateReserved": "2026-09-24T16:01:01.150Z",
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Sightings

Author	Source	Type	Date	Other

Nomenclature

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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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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GHSA-FF5J-329X-2XX2

CVE-2026-97489 (GCVE-0-2026-97489)

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