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NVD / CVE Program· CNA Linux

CVE-2026-90298: drm/sun4i: tcon: Drop TCON TOP device reference

—No exploit Fix available

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 1ca06d47ac40bdcb63e4e528499bf531c6c3231b, 31b54c92a49a2b40fcd59b0c8cf346b0b3fb288b, 3eeb8545d5513defe935ce46a9824512f7a2bbd9; 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 1ca06d47ac40bdcb63e4e528499bf531c6c3231b, 31b54c92a49a2b40fcd59b0c8cf346b0b3fb288b, 3eeb8545d5513defe935ce46a9824512f7a2bbd9; 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: drm/sun4i: tcon: Drop TCON TOP device reference of_find_device_by_node() takes a device reference. Drop it after mux configuration succeeds.

Published
Sep 17, 2026
Updated
Oct 19, 2026
EPSS
0.2% · 11th 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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Follow CVE-2026-90298

When you'll hear from us

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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

    • 4.20affected
    • 0305189afb323c1bad2be7fe713d556a9b708003 and later · before 31b54c92a49a2b40fcd59b0c8cf346b0b3fb288baffected · git
    • 0305189afb323c1bad2be7fe713d556a9b708003 and later · before 3eeb8545d5513defe935ce46a9824512f7a2bbd9affected · git
    • 0305189afb323c1bad2be7fe713d556a9b708003 and later · before b192f08480d63d3f5e46d35c91d4fccd4e703ca7affected · git
    • 0305189afb323c1bad2be7fe713d556a9b708003 and later · before 4fa22218c2351621d470d2d2ae4f6a2ac39ada94affected · git
    • 0305189afb323c1bad2be7fe713d556a9b708003 and later · before e6406726ee7f4deb1b9b32c1ad6a147ffd208becaffected · git
    • 0305189afb323c1bad2be7fe713d556a9b708003 and later · before 1ca06d47ac40bdcb63e4e528499bf531c6c3231baffected · git
    • 0305189afb323c1bad2be7fe713d556a9b708003 and later · before ae08a67bca7817e37c16c1ec51bce7f2ff9aaf2caffected · git
    • 0305189afb323c1bad2be7fe713d556a9b708003 and later · before 8208832a38ff3d2560eb8a77a9d7a2f17d8ebcdcaffected · git
    • before 4.20not 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-2026-90296Sep 17, 2026 · cpufreq: imx6q: fix devres accumulation across driver rebind
    0Monitor
  • ← EarlierCVE-2026-90297Sep 17, 2026 · drm/sun4i: crtc: Propagate layer initialization error
    0Monitor
  • Later →CVE-2026-90299Sep 17, 2026 · bpf: Fix sleepable check for tracing/lsm prog
    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 Linux1ca06d47ac40bdcb63e4e528499bf531c6c3231bVendor (CNA)
Linux Linux31b54c92a49a2b40fcd59b0c8cf346b0b3fb288bVendor (CNA)
Linux Linux3eeb8545d5513defe935ce46a9824512f7a2bbd9Vendor (CNA)
Linux Linux4fa22218c2351621d470d2d2ae4f6a2ac39ada94Vendor (CNA)
Linux Linux8208832a38ff3d2560eb8a77a9d7a2f17d8ebcdcVendor (CNA)
Linux Linuxae08a67bca7817e37c16c1ec51bce7f2ff9aaf2cVendor (CNA)
Linux Linuxb192f08480d63d3f5e46d35c91d4fccd4e703ca7Vendor (CNA)
Linux Linuxe6406726ee7f4deb1b9b32c1ad6a147ffd208becVendor (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).

Not on record for this CVE: patch commit or PR link · researcher credit · variant or chain candidate · public bounty program.

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.

References

Show all references (7 more)

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

All records