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CVE.org (no NVD analysis yet)· CNA Linux

CVE-2026-98909: net: cpsw_new: unregister devlink on port registration failure

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: 0.18% (FIRST EPSS).
  • Fixed version: Linux Linux 0a44945b0d3422f5d81b49c97e293f3e21a8c585, 2bcf21ede6b097ca96cb1f7679761acca6510555, 43d4af5c5331ea739a49cb1097d41e502ed91ec4; azl3 kernel 6.6.157.1-1 on Azure Linux 3.0 6.6.159.1-1.
  • Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Upgrade to Linux Linux 0a44945b0d3422f5d81b49c97e293f3e21a8c585, 2bcf21ede6b097ca96cb1f7679761acca6510555, 43d4af5c5331ea739a49cb1097d41e502ed91ec4; azl3 kernel 6.6.157.1-1 on Azure Linux 3.0 6.6.159.1-1 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: net: cpsw_new: unregister devlink on port registration failure cpsw_probe() registers devlink before registering the CPSW ports. If cpsw_register_ports() fails, the error path only unregisters the notifiers and then releases the lower level resources. It does not undo the successful cpsw_register_devlink() call, leaving the devlink instance and its parameters registered after probe has failed. Add a devlink cleanup label for the path where devlink registration has already succeeded, and use it when port registration fails.

—No exploit Fix available
Published
Oct 23, 2026
Updated
Oct 26, 2026
EPSS
0.1% · 8th 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

If any of these changes, we'll tell you in the daily email digest.

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When you'll hear from us

  • when it enters CISA KEV
  • 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

    • 5.5affected
    • ed3525eda4c4983fb8509e488de0a351788041ba and later · before b020390b4ef39adc40c800301042baf812280da1affected · git
    • ed3525eda4c4983fb8509e488de0a351788041ba and later · before 5a5ac0defdd42e566f1c871272370b6a3a8eef5caffected · git
    • ed3525eda4c4983fb8509e488de0a351788041ba and later · before 43d4af5c5331ea739a49cb1097d41e502ed91ec4affected · git
    • ed3525eda4c4983fb8509e488de0a351788041ba and later · before 8af61d5bd87fd1a3bdc81fe948e7acdc8aa5bcf0affected · git
    • ed3525eda4c4983fb8509e488de0a351788041ba and later · before 2bcf21ede6b097ca96cb1f7679761acca6510555affected · git
    • ed3525eda4c4983fb8509e488de0a351788041ba and later · before 0a44945b0d3422f5d81b49c97e293f3e21a8c585affected · git
    • ed3525eda4c4983fb8509e488de0a351788041ba and later · before b64f763b607426ac97e44b114f0b8844ac3b86ddaffected · git
    • before 5.5not 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:12linuxbefore 6.1.190-16.1.190-1
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-2026-98907Oct 23, 2026 · btrfs: protect sb_write_pointer() with invalidate lock
    0Monitor
  • ← EarlierCVE-2026-98908Oct 23, 2026 · net: microchip: sparx5: clean up PSFP resources on flower setup failure
    0Monitor
  • Later →CVE-2026-98910Oct 23, 2026 · drm/amdkfd: Unwind debug trap enable on copy_to_user failure
    0Monitor

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 Linux0a44945b0d3422f5d81b49c97e293f3e21a8c585Vendor (CNA)
Linux Linux2bcf21ede6b097ca96cb1f7679761acca6510555Vendor (CNA)
Linux Linux43d4af5c5331ea739a49cb1097d41e502ed91ec4Vendor (CNA)
Linux Linux5a5ac0defdd42e566f1c871272370b6a3a8eef5cVendor (CNA)
Linux Linux8af61d5bd87fd1a3bdc81fe948e7acdc8aa5bcf0Vendor (CNA)
Linux Linuxb020390b4ef39adc40c800301042baf812280da1Vendor (CNA)
Linux Linuxb64f763b607426ac97e44b114f0b8844ac3b86ddVendor (CNA)
azl3 kernel 6.6.157.1-1 on Azure Linux 3.06.6.159.1-1 · Release NotesMicrosoft (MSRC)
debian:linux6.1.190-1 · 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.

  1. Published
  2. Fix recordedsame day
  3. TodayOct 29, 2026+6 d
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).

National notice (Türkiye Cybersecurity Directorate / USOM)

Official security notices citing this record; remediation advice is on the agency's page.

All national notices →

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. Exploit maturity— → none
  2. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (6 more)

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

All records