Vulnerability in Linux

CVE-2026-64463

In the Linux kernel, the following vulnerability has been resolved: usb: typec: tcpci_rt1711h: unregister TCPCI port with devres rt1711h_probe() registers the TCPCI port before requesting the interrupt and enabling alert interrupts. If either of those later steps fails, the probe function returns without unregistering the TCPCI port. The explicit unregister currently only happens from the remove callback. Register a devres action immediately after tcpci_register_port() succeeds, so tcpci_unregister_port() runs on later probe failures and on driver detach. Drop the remove callback to avoid unregistering the same port twice. This issue was identified during our ongoing static-analysis research while reviewing kernel code.

EPSS: 0.001 (3.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

  • Linux — versions 5.4.50, 895ec8c86e13f85b119c71d5f95491b48867955e, 302c570bf36e997d55ad0d60628a2feec76954a4

References

Frequently asked questions

What is CVE-2026-64463?
CVE-2026-64463 is a high-severity vulnerability in Linux. CVSS score: 7.8/10. Published 2026-07-25.
How severe is CVE-2026-64463?
High severity. CVSS v3 base score is 7.8 out of 10.