PT-2026-64684 · Linux · Linux

CVE-2026-64463 · Published 2026-07-25 · Updated 2026-07-25

Mitre

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.

Related Identifiers

CVE-2026-64463

Affected Products

Linux

References · 6

• https://nvd.nist.gov/vuln/detail/CVE-2026-64463 · Security Note
• https://git.kernel.org/stable/c/e8da46d99d3710106e7c44db14566bf9b57386b5 · Note
• https://git.kernel.org/stable/c/569f18a83eed0b0be4615f0c7bed40fb5c50e2e6 · Note
• https://git.kernel.org/stable/c/94b1abf1af94aa5a355e9f03675e07bccfc41c4b · Note
• https://git.kernel.org/stable/c/ce2e36e8759dfbfe546723810c306f42f484866d · Note
• https://git.kernel.org/stable/c/e5406c8fb71cd2f89a46300a746f6e7972e621e8 · Note