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NVD / CVE Program· CNA Linux

CVE-2026-92484: cxl/region: Fix use-after-free in find_pos_and_ways() error path

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: 0.20% (FIRST EPSS).
  • Fixed version: Linux Linux 15da704b732332cc1e8f121f624e5e6c05124c5d, 6.12.110, 6.16; azl3 kernel 6.6.152.1-1 on Azure Linux 3.0 6.6.157.1-1.

Low priority for now. Upgrade to Linux Linux 15da704b732332cc1e8f121f624e5e6c05124c5d, 6.12.110, 6.16; azl3 kernel 6.6.152.1-1 on Azure Linux 3.0 6.6.157.1-1 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: cxl/region: Fix use-after-free in find_pos_and_ways() error path The error path releases its reference to a switch decoder before logging an error that includes the decoder name. If the released reference is the last one, the decoder can be freed before the error message accesses its name. Drop the reference after the error is reported.

—No exploit Fix available
Published
Sep 17, 2026
Updated
Oct 19, 2026
EPSS
0.2% · 9th 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 · 0.2%

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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  • when EPSS rises 20 points in a week

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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

    • 8ad454d3050a40fd616d481e48d1aebb27d9951e, 6.16affected
    • 9d90ab45d3d393532b7fa62d6a6b7ebbde9cf5fc and later · before 68edf359b0b45cad2654510c1ca257079b241aa5affected · git
    • b3dc5c735a754142831f705068fcfa77551724ff and later · before b38ca9ce8c7d9b8151bb9e4770404c5e39600a48affected · git
    • d90acdf49e18029cfe4194475c45ef143657737a and later · before f54b96e8aadbfc7f2a1b26df349ef9b062c47d2eaffected · git
    • d90acdf49e18029cfe4194475c45ef143657737a and later · before 8f7683ce37a53eeabd721941517341d2eef2cf3caffected · git
    • d90acdf49e18029cfe4194475c45ef143657737a and later · before 15da704b732332cc1e8f121f624e5e6c05124c5daffected · git
    • 6.6.96 and later · before 6.6.157affected · semver
    • 6.12.36 and later · before 6.12.110affected · semver
    • 6.15.5 and later · before 6.16affected · semver
    • before 6.16not affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
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
  • CVE-2026-74612veth: fix skb length accounting after XDP frag adjustment
    40Plan
  • CVE-2026-74475vxlan: use neigh_ha_snapshot() in route_shortcircuit()
    40Plan

Published before and after this one in the same product

  • ← EarlierCVE-2026-92482Sep 17, 2026 · pinctrl: mediatek: use devm_gpiochip_add_data() for GPIO chip
    0Monitor
  • ← EarlierCVE-2026-92483Sep 17, 2026 · liveupdate: Remember FLB retrieve() status
    0Monitor
  • Later →CVE-2026-92485Sep 17, 2026 · bpf: Fix WARNING in bpf_tracing_link_release
    31Monitor

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 Linux15da704b732332cc1e8f121f624e5e6c05124c5dVendor (CNA)
Linux Linux6.12.110Vendor (CNA)
Linux Linux6.16Vendor (CNA)
Linux Linux6.6.157Vendor (CNA)
Linux Linux68edf359b0b45cad2654510c1ca257079b241aa5Vendor (CNA)
Linux Linux8f7683ce37a53eeabd721941517341d2eef2cf3cVendor (CNA)
Linux Linuxb38ca9ce8c7d9b8151bb9e4770404c5e39600a48Vendor (CNA)
Linux Linuxf54b96e8aadbfc7f2a1b26df349ef9b062c47d2eVendor (CNA)
azl3 kernel 6.6.150.1-1 on Azure Linux 3.0—Microsoft (MSRC)
azl3 kernel 6.6.152.1-1 on Azure Linux 3.06.6.157.1-1 · Release NotesMicrosoft (MSRC)
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 (4 more)

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

All records