hpfs: handle set_blocksize failures
Priority LOW 22Published · Updated
Key facts
- Attack vector
- —
- Privileges required
- —
- User interaction
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- Attack complexity
- —
- Impact type
- —
- Confidentiality · integrity · availability
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- Fix status
- Fixed
No CVSS vector from any source. Fix status from CNA.
Summary
In the Linux kernel, the following vulnerability has been resolved: hpfs: handle set_blocksize failures hpfs 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.
Why it matters now
EPSS 0.00173 6th percentileScored 2026-11-07
Fix Fixed Linux (Linux): 5.10.271, 5.15.222, 6.1.189 +4
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
Remediation
- Fix · CNA Linux (Linux) Fixed in 5.10.271, 5.15.222, 6.1.189, 6.6.158, 6.12.111, 6.18.53, 7.2
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
Not affected: 7 products
- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
- Red Hat OpenShift Container Platform 4
- Red Hat OpenShift Container Platform 5
Timeline
- 2026-10-02 Threatist record created from CVE-2026-97486
- 2026-10-03 Alias added: GHSA-grhw-m2j5-c3v8
- 2026-10-03 Fix available: Linux/Linux@0451927f42b0282d80d402e8e8c46ff34e9f606f, Linux/Linux@10f226687bcb07ed925a453b6f25e817165d113b, Linux/[email protected] +5 · CNA
- 2026-10-03 4 new references · CNA
- 2026-11-06 Affected versions changed · Red Hat
References
Other 7
- https://git.kernel.org/stable/c/f7b0cde62edb8ceff8bcc17ba3f1b086646fff89
- https://git.kernel.org/stable/c/b618f681acb6748faf95eee9af2aac5455a74e68
- https://git.kernel.org/stable/c/10f226687bcb07ed925a453b6f25e817165d113b
- https://git.kernel.org/stable/c/0451927f42b0282d80d402e8e8c46ff34e9f606f
- https://git.kernel.org/stable/c/fc79fcc78cb771f2a803e52149cac5ca9050fd05
- https://git.kernel.org/stable/c/f27e21cf3c0446a3536ea9b588a78a46b0a2cb66
- https://git.kernel.org/stable/c/a405996f23e04942aad064ab8d50c55827482872
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Sources
- CVE-2026-97486 · CVE Program
- CVE-2026-97486 · NVD
- FIRST EPSS
- GHSA-grhw-m2j5-c3v8 · GitHub Advisory Database · CC BY 4.0
- CVE-2026-97486 · Red Hat security data · CC BY 4.0
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