CVE-2025-71108

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Source
https://cve.org/CVERecord?id=CVE-2025-71108
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-71108.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2025-71108
Downstream
Related
Published
2026-01-14T15:05:56.553Z
Modified
2026-03-12T02:19:06.906167Z
Summary
usb: typec: ucsi: Handle incorrect num_connectors capability
Details

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.

Database specific 
{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/71xxx/CVE-2025-71108.json"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
c1b0bc2dabfa884dea49c02adaf3cd6b52b33d2f
Fixed
07c8d2a109d847775b3b4e2c3294c8e1eea75432
Fixed
58941bbb0050e365a98c64f1fc4a9a0ac127dba6
Fixed
f72f97d0aee4a993a35f2496bca5efd24827235d
Fixed
914605b0de8128434eafc9582445306830748b93
Fixed
3042a57a8e8bce4a3100c3f6f03dc372aab24943
Fixed
132fe187e0d940f388f839fe2cde9b84106ad20d
Fixed
30cd2cb1abf4c4acdb1ddb468c946f68939819fb

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-71108.json"

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
4.13.0
Fixed
5.10.248
Type
ECOSYSTEM
Events
Introduced
5.11.0
Fixed
5.15.198
Type
ECOSYSTEM
Events
Introduced
5.16.0
Fixed
6.1.160
Type
ECOSYSTEM
Events
Introduced
6.2.0
Fixed
6.6.120
Type
ECOSYSTEM
Events
Introduced
6.7.0
Fixed
6.12.64
Type
ECOSYSTEM
Events
Introduced
6.13.0
Fixed
6.18.3

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-71108.json"