{"id":"CVE-2025-71108","revision":"0802be43c0fb443486791c302a437e83","records":[{"revision":"0802be43c0fb443486791c302a437e83","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2025-71108","aliases":[],"title":"usb: typec: ucsi: Handle incorrect num_connectors capability","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nusb: typec: ucsi: Handle incorrect num_connectors capability\n\nThe UCSI spec states that the num_connectors field is 7 bits, and the\n8th bit is reserved and should be set to zero.\nSome buggy FW has been known to set this bit, and it can lead to a\nsystem not booting.\nFlag that the FW is not behaving correctly, and auto-fix the value\nso that the system boots correctly.\n\nFound on Lenovo P1 G8 during Linux enablement program. The FW will\nbe fixed, but seemed worth addressing in case it hit platforms that\naren't officially Linux supported.","state":0,"publishedAt":"2026-01-14T15:05:56.553+00:00","modifiedAt":"2026-10-19T18:15:13.504+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/usb/typec/ucsi/ucsi.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"c1b0bc2dabfa884dea49c02adaf3cd6b52b33d2f\",\n                            \"lessThan\": \"07c8d2a109d847775b3b4e2c3294c8e1eea75432\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"c1b0bc2dabfa884dea49c02adaf3cd6b52b33d2f\",\n                            \"lessThan\": \"58941bbb0050e365a98c64f1fc4a9a0ac127dba6\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"c1b0bc2dabfa884dea49c02adaf3cd6b52b33d2f\",\n                            \"lessThan\": \"f72f97d0aee4a993a35f2496bca5efd24827235d\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"c1b0bc2dabfa884dea49c02adaf3cd6b52b33d2f\",\n                            \"lessThan\": \"914605b0de8128434eafc9582445306830748b93\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"c1b0bc2dabfa884dea49c02adaf3cd6b52b33d2f\",\n                            \"lessThan\": \"3042a57a8e8bce4a3100c3f6f03dc372aab24943\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"c1b0bc2dabfa884dea49c02adaf3cd6b52b33d2f\",\n                            \"lessThan\": \"132fe187e0d940f388f839fe2cde9b84106ad20d\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"c1b0bc2dabfa884dea49c02adaf3cd6b52b33d2f\",\n                            \"lessThan\": \"30cd2cb1abf4c4acdb1ddb468c946f68939819fb\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"affected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/usb/typec/ucsi/ucsi.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"4.13\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"4.13\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.10.248\",\n                            \"lessThanOrEqual\": \"5.10.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.15.198\",\n                            \"lessThanOrEqual\": \"5.15.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.160\",\n                            \"lessThanOrEqual\": \"6.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.120\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.64\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.3\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.19\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[],"references":["https://git.kernel.org/stable/c/07c8d2a109d847775b3b4e2c3294c8e1eea75432","https://git.kernel.org/stable/c/58941bbb0050e365a98c64f1fc4a9a0ac127dba6","https://git.kernel.org/stable/c/f72f97d0aee4a993a35f2496bca5efd24827235d","https://git.kernel.org/stable/c/914605b0de8128434eafc9582445306830748b93","https://git.kernel.org/stable/c/3042a57a8e8bce4a3100c3f6f03dc372aab24943","https://git.kernel.org/stable/c/132fe187e0d940f388f839fe2cde9b84106ad20d","https://git.kernel.org/stable/c/30cd2cb1abf4c4acdb1ddb468c946f68939819fb"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2025-71108","license":"CVE Program Terms of Use","key":"cve-program:CVE-2025-71108","identifiers":["CVE-2025-71108"]},"retained":false,"historicalAffected":[]}],"coverage":[]}