CVE-2026-98670: Linux kernel · iio: adc: xilinx-xadc: free IRQ before cancelling the unmask worker on unbind
Affects Linux kernelSource GCVE Database
Not known to be exploited.
Data as of 28 Oct 2026, 05:00 UTC
Rated by Threat Radar · CVSS not yet scored by NVD
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.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Ubuntu 26.04 LTSlinuxpkg:deb/ubuntu/linux?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSlinux-awspkg:deb/ubuntu/linux-aws?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSlinux-azurepkg:deb/ubuntu/linux-azure?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSlinux-azure-fdepkg:deb/ubuntu/linux-azure-fde?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSlinux-gcppkg:deb/ubuntu/linux-gcp?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSlinux-gkepkg:deb/ubuntu/linux-gke?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
A fix is available as the vulnerability has been resolved in the affected Linux kernel versions. Users should update to the patched kernel releases listed as affectedVersions to mitigate this issue.
Description
A vulnerability in the Linux kernel's xilinx-xadc driver involves freeing an IRQ before cancelling a delayed workqueue on device unbind. This can lead to a race condition where the IRQ handler queues work after the associated data structure has been freed. The issue was identified through static analysis and affects specific Linux kernel versions.
References
- ubuntu.com/security/CVE-2026-98670 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-98670 (opens in a new tab)
- git.kernel.org/stable/c/a29d385ad7b340c952a3935af2b33488db1eb3a6 (opens in a new tab)
- git.kernel.org/stable/c/a5fe2d1b55faba6d00fd87ad491b6cb603046304 (opens in a new tab)
- git.kernel.org/stable/c/0f3f427076240e75ff265e61645627a71ca4918c (opens in a new tab)
- git.kernel.org/stable/c/49ea8a359e362bfbb32a647c8eb7962fbb37234e (opens in a new tab)