Riskcovery

CVE-2026-64463

usb: typec: tcpci_rt1711h: unregister TCPCI port with devres

State
Published
Severity
7.8 High
Published
Jul 25, 2026
Updated
Oct 30, 2026
Reserved
Jul 19, 2026

Read the record on cve.org

Description

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.

Scores

CVSSScoreVectorSource
3.17.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HLinux

Weaknesses

  • CWE-401 Missing Release of Memory after Effective Lifetime

Affected Products

ProductVersions
LinuxLinux
  • 302c570bf36e997d55ad0d60628a2feec76954a4 to before 388f5354158fc038214b73baad43a723385fea1eAffected
  • 302c570bf36e997d55ad0d60628a2feec76954a4 to before ce2e36e8759dfbfe546723810c306f42f484866dAffected
  • 302c570bf36e997d55ad0d60628a2feec76954a4 to before 94b1abf1af94aa5a355e9f03675e07bccfc41c4bAffected
  • 302c570bf36e997d55ad0d60628a2feec76954a4 to before e5406c8fb71cd2f89a46300a746f6e7972e621e8Affected
  • 302c570bf36e997d55ad0d60628a2feec76954a4 to before 569f18a83eed0b0be4615f0c7bed40fb5c50e2e6Affected
  • 302c570bf36e997d55ad0d60628a2feec76954a4 to before e8da46d99d3710106e7c44db14566bf9b57386b5Affected
  • 4309ab96ab744703871e35d829177dd9347bf643Affected
  • 895ec8c86e13f85b119c71d5f95491b48867955eAffected
  • 745dcedb896a740825160228f98dbb5725a49f85Affected
  • 4.19.131 to before 4.20Affected
  • 5.4.50 to before 5.5Affected
  • 5.7.7 to before 5.8Affected
LinuxLinux
  • 5.8Affected
  • before 5.8Not affected
  • 6.1.191 through 6.1.*Not affected
  • 6.6.145 through 6.6.*Not affected
  • 6.12.96 through 6.12.*Not affected
  • 6.18.39 through 6.18.*Not affected
  • 7.1.4 through 7.1.*Not affected
  • 7.2 and laterNot affected

References

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.