CVE-2026-97430: Linux kernel · xhci: Prevent queuing new commands if xhci is inaccessible
Affects Linux kernelSource GCVE Database
Not known to be exploited.
Data as of 26 Oct 2026, 15:59 UTC
Rated by Threat Radar · CVSS not yet scored by NVD
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 6% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Exploitation evidence
Disclosed: evidence found.
CVE published 24 Sep 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 that prevents queuing new commands when the xHCI controller is inaccessible. Users should apply the updated Linux kernel versions that include this fix. No additional mitigation is required beyond applying the official patch.
Description
A vulnerability in the Linux kernel's xHCI driver was resolved by preventing new commands from being queued when the xHCI controller is marked inaccessible. The fix ensures that no new commands are added to the command ring if the hardware accessibility flag (HCD_FLAG_HW_ACCESSIBLE) is cleared during suspend or resume operations. Additionally, a warning is printed if the xHCI is suspended while commands remain pending.
References
- ubuntu.com/security/CVE-2026-97430 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-97430 (opens in a new tab)
- git.kernel.org/stable/c/82b70c799281cc24506085be978b829149ba0ca4 (opens in a new tab)
- git.kernel.org/stable/c/a05e54c1eeaba10414aa2fde94589a7c9885f2a1 (opens in a new tab)
- git.kernel.org/stable/c/a50948386256b24d73971b9a152fe1de808446ab (opens in a new tab)
- nvd.nist.gov/vuln/detail/CVE-2026-97430 (opens in a new tab)
- git.kernel.org/stable/c/0e2eaa000e4e5ad46b7cf8fcf1e4a2585ef8b5a8 (opens in a new tab)
- git.kernel.org/stable/c/a215190ef68ca3602fe00674e0efffad71beb3aa (opens in a new tab)
- git.kernel.org/stable/c/add3aeb74e2c7d82fa1035af2a027666c6906210 (opens in a new tab)
- git.kernel.org/stable/c/fec259e46d44317379834a44115fae66122dc93f (opens in a new tab)