VulnerabilityPublished 18 Oct 2026Updated 21 Oct 2026

CVE-2026-98766: Linux kernel · usb: gadget: aspeed-vhub: cancel wake work on device removal

Source GCVE Database

Authoritative record:CVE-2026-98766· High

Not known to be exploited · fixed in f343bfa3fc9f6255602d66f4a7dbe7ddef13ba41 : patch Linux kernel soon.

Data as of 26 Oct 2026, 17:16 UTC

Severity

High

Rated by Threat Radar · CVSS not yet scored by NVD

EPSS: 0.1% chance of exploitation in 30 days – higher than 5% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch: Available – fixed in f343bfa3fc9f6255602d66f4a7dbe7ddef13ba41, c81504dfd2d93e345c98e7a012c2f2e74ce5b6a1, 20388c8d1d74c203fec8194c45cd31afdfab934e +2

Exploitation evidence

Disclosed: evidence found.
CVE published 18 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: 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 26 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.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, 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-5m27-6x28-p9v6

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

Product	Affected	Fixed in
LinuxLinux	Affected ≥ 7ecca2a4080cb6b1fa174adc588fce9e9014c43c, < f343bfa3fc9f6255602d66f4a7dbe7ddef13ba41	Fixed in f343bfa3fc9f6255602d66f4a7dbe7ddef13ba41
LinuxLinux	Affected ≥ 7ecca2a4080cb6b1fa174adc588fce9e9014c43c, < c81504dfd2d93e345c98e7a012c2f2e74ce5b6a1	Fixed in c81504dfd2d93e345c98e7a012c2f2e74ce5b6a1
LinuxLinux	Affected ≥ 7ecca2a4080cb6b1fa174adc588fce9e9014c43c, < 20388c8d1d74c203fec8194c45cd31afdfab934e	Fixed in 20388c8d1d74c203fec8194c45cd31afdfab934e
LinuxLinux	Affected ≥ 7ecca2a4080cb6b1fa174adc588fce9e9014c43c, < 474e9e1852fb5ba0bfb26f123dd0cb361d0f4f4d	Fixed in 474e9e1852fb5ba0bfb26f123dd0cb361d0f4f4d
LinuxLinux	Affected ≥ 7ecca2a4080cb6b1fa174adc588fce9e9014c43c, < 0d39ac4f65f9357469518c70e42940e0d8b0e497	Fixed in 0d39ac4f65f9357469518c70e42940e0d8b0e497
LinuxLinux	Affected =4.18	Fixed in–

AI-suggested

A fix for this vulnerability has been implemented in the Linux kernel by cancelling the wake_work item atomically during device removal and refusing wakeup requests once the device is unregistered. Users should apply the official kernel update containing this patch when available. Patch status is not explicitly confirmed in the provided data; check the vendor advisory or Linux kernel mailing lists for the exact fixed versions and update guidance.

Description

A use-after-free vulnerability in the Linux kernel's usb gadget driver for aspeed-vhub was resolved. The issue occurs because a wake_work item is not properly cancelled during device removal, allowing a work item to run after the device and its ports have been freed. The fix involves cancelling the work item atomically with device unbinding and refusing wakeup requests once the device is unregistered. This vulnerability was discovered via static analysis and has no known exploits in the wild.

References

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