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CVE-2026-97488· NVD / CVE Program· CNA Linux

qnx4: handle set_blocksize failures

Noroxi assessment

Priority: Monitor (action score 0/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.17% (FIRST EPSS).
  • Fixed version: Linux Linux 3f2088a3973faf3ed9b56ea3d3f0240b9a797016, 60f7ccf669882262330171eda51a4f52fa2e69c9, aac97a4b3f47c36a47f934aa679407b718b67537.

Low priority for now. Upgrade to Linux Linux 3f2088a3973faf3ed9b56ea3d3f0240b9a797016, 60f7ccf669882262330171eda51a4f52fa2e69c9, aac97a4b3f47c36a47f934aa679407b718b67537 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

In the Linux kernel, the following vulnerability has been resolved: qnx4: handle set_blocksize failures qnx4 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.

—No exploit Fix available
Published
Sep 24, 2026
Updated
Oct 3, 2026
EPSS
0.1% · 6th percentile
CWE
—

Report tools

JSON

Action score

0

Monitor

Low priority for now.

CVSS
0 / 40 · —
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.1%

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

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  • when exploit code appears or is weaponized
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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

—

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Linux). Independent of NVD's CPE analysis and usually ahead of it.

  • Linux Linux

    • 2.6.12affected
    • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before de8bd760ca0c2a3f337bbafbeb1dcad0853787ccaffected · git
    • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before 3f2088a3973faf3ed9b56ea3d3f0240b9a797016affected · git
    • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before c9f03e750d9ddf0f42c24e3ba683f26e377ffd72affected · git
    • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before f83e416c2242fb298ad33b756c83aae75d9e359caffected · git
    • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before aac97a4b3f47c36a47f934aa679407b718b67537affected · git
    • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before 60f7ccf669882262330171eda51a4f52fa2e69c9affected · git
    • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before c7d911ea1cc9a63b07e52f5e75b263be0615b289affected · git
    • before 2.6.12not affected · semver
    • 5.10.271 and later · up to and including 5.10.*not affected · semver

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:12linuxall versions—
Debian:12linux-6.12before 6.12.111-1~deb12u16.12.111-1~deb12u1
Debian:13linuxbefore 6.12.111-16.12.111-1
Debian:14linuxbefore 7.2.6-17.2.6-1

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-74705udp: fix potential use-after-free in tunnel segmentation
    40Plan
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  • CVE-2026-74475vxlan: use neigh_ha_snapshot() in route_shortcircuit()
    40Plan
  • CVE-2026-74279crypto: cavium/cpt - fix DMA cleanup using wrong loop index
    40Plan
  • CVE-2026-72421ipv4: fib: Don't ignore error route in local/main tables.
    40Plan
  • CVE-2026-74309vdpa/octeon_ep: fix IRQ-to-ring mapping in interrupt handler
    40Plan

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
Linux Linux3f2088a3973faf3ed9b56ea3d3f0240b9a797016Vendor (CNA)
Linux Linux60f7ccf669882262330171eda51a4f52fa2e69c9Vendor (CNA)
Linux Linuxaac97a4b3f47c36a47f934aa679407b718b67537Vendor (CNA)
Linux Linuxc7d911ea1cc9a63b07e52f5e75b263be0615b289Vendor (CNA)
Linux Linuxc9f03e750d9ddf0f42c24e3ba683f26e377ffd72Vendor (CNA)
Linux Linuxde8bd760ca0c2a3f337bbafbeb1dcad0853787ccVendor (CNA)
Linux Linuxf83e416c2242fb298ad33b756c83aae75d9e359cVendor (CNA)
debian:linux6.12.111-1 · Debian:13Package registry (OSV)
debian:linux-6.126.12.111-1~deb12u1 · Debian:12Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

No CVSS vector for this record, so attack conditions can't be derived.

Weakness class (CWE)

—

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Change log

  1. Fix✗ → ✓

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References

Show all references (6 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records