CVE-2026-64463
usb: typec: tcpci_rt1711h: unregister TCPCI port with devres
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.
INFO
Published Date :
July 25, 2026, 10:17 a.m.
Last Modified :
July 25, 2026, 10:17 a.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Affected Products
The following products are affected by CVE-2026-64463
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
Solution
- Register devres action after tcpci_register_port succeeds.
- Ensure tcpci_unregister_port runs on probe failures.
- Remove the redundant remove callback.
- Update the Linux kernel to the resolved version.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-64463.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-64463 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-64463
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-64463 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-64463 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Jul. 25, 2026
Action Type Old Value New Value Added Affected [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '302c570bf36e997d55ad0d60628a2feec76954a4', 'lessThan': 'ce2e36e8759dfbfe546723810c306f42f484866d', 'versionType': 'git'}, {'status': 'affected', 'version': '302c570bf36e997d55ad0d60628a2feec76954a4', 'lessThan': '94b1abf1af94aa5a355e9f03675e07bccfc41c4b', 'versionType': 'git'}, {'status': 'affected', 'version': '302c570bf36e997d55ad0d60628a2feec76954a4', 'lessThan': 'e5406c8fb71cd2f89a46300a746f6e7972e621e8', 'versionType': 'git'}, {'status': 'affected', 'version': '302c570bf36e997d55ad0d60628a2feec76954a4', 'lessThan': '569f18a83eed0b0be4615f0c7bed40fb5c50e2e6', 'versionType': 'git'}, {'status': 'affected', 'version': '302c570bf36e997d55ad0d60628a2feec76954a4', 'lessThan': 'e8da46d99d3710106e7c44db14566bf9b57386b5', 'versionType': 'git'}, {'status': 'affected', 'version': '4309ab96ab744703871e35d829177dd9347bf643', 'versionType': 'git'}, {'status': 'affected', 'version': '895ec8c86e13f85b119c71d5f95491b48867955e', 'versionType': 'git'}, {'status': 'affected', 'version': '745dcedb896a740825160228f98dbb5725a49f85', 'versionType': 'git'}, {'status': 'affected', 'version': '4.19.131', 'lessThan': '4.20', 'versionType': 'semver'}, {'status': 'affected', 'version': '5.4.50', 'lessThan': '5.5', 'versionType': 'semver'}, {'status': 'affected', 'version': '5.7.7', 'lessThan': '5.8', 'versionType': 'semver'}], 'programFiles': ['drivers/usb/typec/tcpm/tcpci_rt1711h.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '5.8'}, {'status': 'unaffected', 'version': '0', 'lessThan': '5.8', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.6.145', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.96', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.39', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.4', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2-rc3', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/usb/typec/tcpm/tcpci_rt1711h.c'], 'defaultStatus': 'affected'}] Added 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. Added Reference https://git.kernel.org/stable/c/569f18a83eed0b0be4615f0c7bed40fb5c50e2e6 Added Reference https://git.kernel.org/stable/c/94b1abf1af94aa5a355e9f03675e07bccfc41c4b Added Reference https://git.kernel.org/stable/c/ce2e36e8759dfbfe546723810c306f42f484866d Added Reference https://git.kernel.org/stable/c/e5406c8fb71cd2f89a46300a746f6e7972e621e8 Added Reference https://git.kernel.org/stable/c/e8da46d99d3710106e7c44db14566bf9b57386b5