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NVD / CVE Program· CNA Linux

CVE-2026-89872: media: v4l2-fwnode: Fix fwnode leak in v4l2_fwnode_parse_link

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: 0.21% (FIRST EPSS).
  • Fixed version: Linux Linux 3ced388b7908270529e5aa6d221840114b6c33bc, 578c4bfa28bf21458ecdde2fd3fc429475f34c10, 881aafb139520570fd3390bf9938d7098b7fbb99; azl3 kernel 6.6.152.1-1 on Azure Linux 3.0 6.6.157.1-1.
  • Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Upgrade to Linux Linux 3ced388b7908270529e5aa6d221840114b6c33bc, 578c4bfa28bf21458ecdde2fd3fc429475f34c10, 881aafb139520570fd3390bf9938d7098b7fbb99; 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: media: v4l2-fwnode: Fix fwnode leak in v4l2_fwnode_parse_link In v4l2_fwnode_parse_link(), the remote endpoint fwnode reference is acquired using fwnode_graph_get_remote_endpoint(). This reference is properly released in the error paths, but it is leaked on the success path. Add the missing fwnode_handle_put() before returning 0 to prevent the reference leak. [Sakari Ailus: Fix subject prefix and coding style a little.]

—No exploit Fix available
Published
Sep 16, 2026
Updated
Oct 19, 2026
EPSS
0.2% · 12th 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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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

    • 4.13affected
    • ca50c197bd9610ea984cfc0dc6855f183cbb46f8 and later · before c9b5238d173ee9b94dcaa2b34244ea89c8024febaffected · git
    • ca50c197bd9610ea984cfc0dc6855f183cbb46f8 and later · before ccd8d1d80afab8b492a583ae81bfd295835bab2faffected · git
    • ca50c197bd9610ea984cfc0dc6855f183cbb46f8 and later · before d92dc4692834e04bc0ef1d0908589852050d1a66affected · git
    • ca50c197bd9610ea984cfc0dc6855f183cbb46f8 and later · before ef609b3ce456f021320fee2fb7e45094a3ccf232affected · git
    • ca50c197bd9610ea984cfc0dc6855f183cbb46f8 and later · before 578c4bfa28bf21458ecdde2fd3fc429475f34c10affected · git
    • ca50c197bd9610ea984cfc0dc6855f183cbb46f8 and later · before 3ced388b7908270529e5aa6d221840114b6c33bcaffected · git
    • ca50c197bd9610ea984cfc0dc6855f183cbb46f8 and later · before 881aafb139520570fd3390bf9938d7098b7fbb99affected · git
    • ca50c197bd9610ea984cfc0dc6855f183cbb46f8 and later · before a6e86efd7f85e519bf48417f41923f8bd51f1597affected · git
    • before 4.13not 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: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-2026-89870Sep 16, 2026 · media: zoran: Avoid freeing a registered video_device twice
    31Monitor
  • ← EarlierCVE-2026-89871Sep 16, 2026 · media: video-i2c: fix kthread error pointer left in kthread_vid_cap on failure
    0Monitor
  • Later →CVE-2026-89873Sep 16, 2026 · media: v4l2-ctrls: validate HEVC EXT SPS RPS counts
    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 Linux3ced388b7908270529e5aa6d221840114b6c33bcVendor (CNA)
Linux Linux578c4bfa28bf21458ecdde2fd3fc429475f34c10Vendor (CNA)
Linux Linux881aafb139520570fd3390bf9938d7098b7fbb99Vendor (CNA)
Linux Linuxa6e86efd7f85e519bf48417f41923f8bd51f1597Vendor (CNA)
Linux Linuxc9b5238d173ee9b94dcaa2b34244ea89c8024febVendor (CNA)
Linux Linuxccd8d1d80afab8b492a583ae81bfd295835bab2fVendor (CNA)
Linux Linuxd92dc4692834e04bc0ef1d0908589852050d1a66Vendor (CNA)
Linux Linuxef609b3ce456f021320fee2fb7e45094a3ccf232Vendor (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:linux6.1.190-1 · Debian:12Package registry (OSV)
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).

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. Fix✗ → ✓

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

References

Show all references (7 more)

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

All records