CVE-2026-64463usb: typec: tcpci_rt1711h: unregister TCPCI port with devres
- 7.8HighCVSS base score
- 0.14%Exploitation in 30 daysEPSS · top 97% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
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.
Timeline
ID reserved
By Linux
- 6 days later
· 6 days later
Published
- 3 months later
· 3 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| LinuxCNA (assigner) | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Analyzed | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.14% · top 97% of all CVEs (12 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: total
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.
Affected products
- affected 302c570bf36e997d55ad0d60628a2feec76954a4 – < 388f5354158fc038214b73baad43a723385fea1e
- affected 302c570bf36e997d55ad0d60628a2feec76954a4 – < ce2e36e8759dfbfe546723810c306f42f484866d
- affected 302c570bf36e997d55ad0d60628a2feec76954a4 – < 94b1abf1af94aa5a355e9f03675e07bccfc41c4b
- affected 302c570bf36e997d55ad0d60628a2feec76954a4 – < e5406c8fb71cd2f89a46300a746f6e7972e621e8
- affected 302c570bf36e997d55ad0d60628a2feec76954a4 – < 569f18a83eed0b0be4615f0c7bed40fb5c50e2e6
- affected 302c570bf36e997d55ad0d60628a2feec76954a4 – < e8da46d99d3710106e7c44db14566bf9b57386b5
- affected 4309ab96ab744703871e35d829177dd9347bf643
- affected 895ec8c86e13f85b119c71d5f95491b48867955e
- affected 745dcedb896a740825160228f98dbb5725a49f85
- affected 4.19.131 – < 4.20
- affected 5.4.50 – < 5.5
- affected 5.7.7 – < 5.8
- affected 5.8
- unaffected < 5.8
- unaffected 6.1.191 – ≤ 6.1.*
- unaffected 6.6.145 – ≤ 6.6.*
- unaffected 6.12.96 – ≤ 6.12.*
- unaffected 6.18.39 – ≤ 6.18.*
- unaffected 7.1.4 – ≤ 7.1.*
- unaffected 7.2 – ≤ *
References
References6
- https://git.kernel.org/stable/c/388f5354158fc038214b73baad43a723385fea1e (opens in a new tab)
- https://git.kernel.org/stable/c/ce2e36e8759dfbfe546723810c306f42f484866d (opens in a new tab)
- https://git.kernel.org/stable/c/94b1abf1af94aa5a355e9f03675e07bccfc41c4b (opens in a new tab)
- https://git.kernel.org/stable/c/e5406c8fb71cd2f89a46300a746f6e7972e621e8 (opens in a new tab)
- https://git.kernel.org/stable/c/569f18a83eed0b0be4615f0c7bed40fb5c50e2e6 (opens in a new tab)
- https://git.kernel.org/stable/c/e8da46d99d3710106e7c44db14566bf9b57386b5 (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-48807 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-64463)Record last updated .