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Review reviewHigh

CVE-2026-64463

Linux

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 u...

CVSS
7.8
EPSS
-
- percentile
CISA KEV
Not listed
Published
2026.07.25
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability-
Technical severityCVSS 7.8

Vulnerability overview

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 u...

Affected product and versions

Product
Linux
Affected versions
>= 302c570bf36e997d55ad0d60628a2feec76954a4 < ce2e36e8759dfbfe546723810c306f42f484866d, >= 302c570bf36e997d55ad0d60628a2feec76954a4 < 94b1abf1af94aa5a355e9f03675e07bccfc41c4b, >= 302c570bf36e997d55ad0d60628a2feec76954a4 < e5406c8fb71cd2f89a46300a746f6e7972e621e8, >= 302c570bf36e997d55ad0d60628a2feec76954a4 < 569f18a83eed0b0be4615f0c7bed40fb5c50e2e6, >= 302c570bf36e997d55ad0d60628a2feec76954a4 < e8da46d99d3710106e7c44db14566bf9b57386b5, >= 4309ab96ab744703871e35d829177dd9347bf643, >= 895ec8c86e13f85b119c71d5f95491b48867955e, >= 745dcedb896a740825160228f98dbb5725a49f85, >= 4.19.131 < 4.20, >= 5.4.50 < 5.5, >= 5.7.7 < 5.8, >= 5.8
Fixed versions
No verified fixed-version field is available yet

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that Linux and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
Not available