CVE-2026-64471
In the Linux kernel, the following vulnerability has been resolved:
Bluetooth: btusb: fix use-after-free on registration failure
Make sure to release the sibling interfaces in case controller
registration fails to avoid use-after-free and double-free when they are
eventually disconnected.
This issue was reported by Sashiko while reviewing a fix for a wakeup
source leak in the btusb probe errors paths.
CSIRTS triage
- What
- This vulnerability involves a use-after-free condition on registration failure.
- Who is affected
- Deployments using the Bluetooth subsystem.
- Urgency
- Remediation is necessary to prevent potential crashes or undefined behavior, though exploitation is not currently reported.
- Action
- Apply the patch for CVE-2026-64471.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Low exploitation risk0.18% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 8% of all EPSS-scored CVEs.
Advisory coverage (2)
External references
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[](https://www.csirts.com/cve/CVE-2026-64471)