VulnerabilityPublished 17 Sep 2026Updated 30 Oct 2026

CVE-2026-90084: Linux kernel · octeontx2-vf: fix workqueue and netdev race in probe/remove

Source GCVE Database

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Authoritative record:CVE-2026-90084· Medium

Not known to be exploited · fixed in ef42c9e922dfa806576d9d82867da2f3cd76b3ca : update Linux kernel when convenient.

Data as of 30 Oct 2026, 19:18 UTC

Severity

Medium

Rated Medium by Threat Radar's AI analysis · CVSS not yet scored by NVD

Thin evidence

One scorer or none

Patch: Available – fixed in ef42c9e922dfa806576d9d82867da2f3cd76b3ca, bdc530baf079eee104f9ea5d83815e798ea155df, 42a139332ce81a907dac987f1494d30e0a8ab149 +3

Exploitation evidence

Disclosed: evidence found.
CVE published 17 Sep 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponized: A Metasploit exploit module or Exploit-DB entry exists (Metasploit scanner modules do not count), or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

ghsa-8f7f-fc8g-59c2

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

Product	Affected	Fixed in
LinuxLinux	Affected ≥ cbc100aa220556d056272f07dc735c9758089da9, < ef42c9e922dfa806576d9d82867da2f3cd76b3ca	Fixed in ef42c9e922dfa806576d9d82867da2f3cd76b3ca
LinuxLinux	Affected ≥ cbc100aa220556d056272f07dc735c9758089da9, < bdc530baf079eee104f9ea5d83815e798ea155df	Fixed in bdc530baf079eee104f9ea5d83815e798ea155df
LinuxLinux	Affected ≥ cbc100aa220556d056272f07dc735c9758089da9, < 42a139332ce81a907dac987f1494d30e0a8ab149	Fixed in 42a139332ce81a907dac987f1494d30e0a8ab149
LinuxLinux	Affected ≥ cbc100aa220556d056272f07dc735c9758089da9, < 4a4b53231b77986ce55b38122174222c86416de7	Fixed in 4a4b53231b77986ce55b38122174222c86416de7
LinuxLinux	Affected ≥ cbc100aa220556d056272f07dc735c9758089da9, < 3ba97ff4f873481d370bee7f7dfb87f8296af9be	Fixed in 3ba97ff4f873481d370bee7f7dfb87f8296af9be
LinuxLinux	Affected ≥ cbc100aa220556d056272f07dc735c9758089da9, < 00dda563f4963f28fab46d09b912d68268b8e7a5	Fixed in 00dda563f4963f28fab46d09b912d68268b8e7a5

AI-suggested

A fix has been implemented in the Linux kernel to address this race condition by correcting the initialization and cleanup order of the VF workqueue and netdev. Users should update to the fixed kernel version once available. No additional mitigation steps are specified.

Description

A race condition vulnerability in the Linux kernel's octeontx2-vf driver related to workqueue and network device (netdev) probe and removal operations has been fixed. The issue involved improper initialization and cleanup order of the VF workqueue and netdev, which could cause work to be queued on a NULL workqueue during network device setup or teardown.

References

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