Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: usb: typec: ucsi: Handle incorrect num_connectors capability The UCSI spec states that the num_connectors field is 7 bits, and the 8th bit is reserved and should be set to zero. Some buggy FW has been known to set this bit, and it can lead to a system not booting. Flag that the FW is not behaving correctly, and auto-fix the value so that the system boots correctly. Found on Lenovo P1 G8 during Linux enablement program. The FW will be fixed, but seemed worth addressing in case it hit platforms that aren't officially Linux supported.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 4.13.1, < 5.10.248 |
References
- https://git.kernel.org/stable/c/07c8d2a109d847775b3b4e2c3294c8e1eea75432Patch
- https://git.kernel.org/stable/c/132fe187e0d940f388f839fe2cde9b84106ad20dPatch
- https://git.kernel.org/stable/c/3042a57a8e8bce4a3100c3f6f03dc372aab24943Patch
- https://git.kernel.org/stable/c/30cd2cb1abf4c4acdb1ddb468c946f68939819fbPatch
- https://git.kernel.org/stable/c/58941bbb0050e365a98c64f1fc4a9a0ac127dba6Patch
- https://git.kernel.org/stable/c/914605b0de8128434eafc9582445306830748b93Patch
- https://git.kernel.org/stable/c/f72f97d0aee4a993a35f2496bca5efd24827235dPatch
FAQ
What is CVE-2025-71108?
CVE-2025-71108 is a vulnerability with a CVSS score of 5.5 (MEDIUM). In the Linux kernel, the following vulnerability has been resolved: usb: typec: ucsi: Handle incorrect num_connectors capability The UCSI spec states that the num_connectors field is 7 bits, and the...
How severe is CVE-2025-71108?
CVE-2025-71108 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-71108?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.