jfs: handle set_blocksize failures
Priority LOW 22Published · Updated
Key facts
- Attack vector
- —
- Privileges required
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- User interaction
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- Attack complexity
- —
- Impact type
- —
- Confidentiality · integrity · availability
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- Fix status
- Partial Red Hat: 1 without a fix
No CVSS vector from any source. Fix status from CNA and Red Hat.
Summary
In the Linux kernel, the following vulnerability has been resolved: jfs: handle set_blocksize failures jfs uses buffer_heads, which don't handle block size > PAGE_SIZE well. Without this, mounting we 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 Partial Linux (Linux): 5.10.271, 5.15.222, 6.1.189 +4Red Hat: 1 without a fix
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: Low. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Out of support scope |
Not affected: 6 products
- Red Hat Enterprise Linux 10
- 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-2026-97487
- 2026-10-03 Alias added: GHSA-w9g3-rpmc-68j2
- 2026-10-03 Fix available: Linux/[email protected], Linux/[email protected], Linux/[email protected] +5 · CNA
- 2026-10-03 4 new references · CNA
- 2026-11-07 Affected versions changed · Red Hat
References
Other 7
- https://git.kernel.org/stable/c/e2712fa5c02cd1b3e40d45bc8ce581f3c67bf4b4
- https://git.kernel.org/stable/c/deb9400a38849e03210c9169b777e89e74debe96
- https://git.kernel.org/stable/c/a0eaa3f4b6dcc829228752f6255f0e45cc94b273
- https://git.kernel.org/stable/c/87d6852f06c5a29f757f7b7ad1423e4cbd0f2cad
- https://git.kernel.org/stable/c/a0ac22af8acca6ea6c57aff72662086cb3243b1c
- https://git.kernel.org/stable/c/153374ee67a458c77b5755d3cc57fbdc639d327e
- https://git.kernel.org/stable/c/05107f5602751fcfd3d108c1f579eb45aabead52
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Sources
- CVE-2026-97487 · CVE Program
- CVE-2026-97487 · NVD
- FIRST EPSS
- GHSA-w9g3-rpmc-68j2 · GitHub Advisory Database · CC BY 4.0
- CVE-2026-97487 · Red Hat security data · CC BY 4.0
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