{"id":"CVE-2026-100079","revision":"78d04914e1354518b7ab470967ae057d","records":[{"revision":"78d04914e1354518b7ab470967ae057d","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-100079","aliases":[],"title":"usb: typec: ucsi: unregister debugfs entries on teardown","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nusb: typec: ucsi: unregister debugfs entries on teardown\n\nucsi_register() creates per-instance debugfs entries, but\nucsi_unregister() keeps them around until ucsi_destroy().\n\nDrivers like ucsi_glink that unregister/register the same UCSI\ninstance across remoteproc restart then try to create an already\nexisting debugfs directory and log:\n\n  debugfs: 'pmic_glink.ucsi.0' already exists in 'ucsi'\n\nUnregister debugfs entries as part of ucsi_unregister(), and\nclear ucsi->debugfs after freeing it so repeated unregister\npaths remain safe.","state":0,"publishedAt":"2026-09-25T13:06:49.915+00:00","modifiedAt":"2026-10-19T08:43:11.422+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/debugfs.c\",\n                        \"drivers/usb/typec/ucsi/ucsi.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"df0383ffad64dc09954a60873c1e202b47f08d90\",\n                            \"lessThan\": \"fb7393519908befdc094be4ea913f582adbf2f7c\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"df0383ffad64dc09954a60873c1e202b47f08d90\",\n                            \"lessThan\": \"7177c215e69658adbd2f2fc5b72e14be9208d2ba\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"df0383ffad64dc09954a60873c1e202b47f08d90\",\n                            \"lessThan\": \"1f44d001620fd3caa30619a9bc73e9d15555408b\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"df0383ffad64dc09954a60873c1e202b47f08d90\",\n                            \"lessThan\": \"62efee351566321ad72a4abaf6eb7d972590585d\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"df0383ffad64dc09954a60873c1e202b47f08d90\",\n                            \"lessThan\": \"eed73a65ab609b79d53de88cccc34b36dfe753c4\",\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/debugfs.c\",\n                        \"drivers/usb/typec/ucsi/ucsi.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"6.6\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"6.6\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.157\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.110\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.52\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2.6\",\n                            \"lessThanOrEqual\": \"7.2.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.3\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[],"references":["https://git.kernel.org/stable/c/fb7393519908befdc094be4ea913f582adbf2f7c","https://git.kernel.org/stable/c/7177c215e69658adbd2f2fc5b72e14be9208d2ba","https://git.kernel.org/stable/c/1f44d001620fd3caa30619a9bc73e9d15555408b","https://git.kernel.org/stable/c/62efee351566321ad72a4abaf6eb7d972590585d","https://git.kernel.org/stable/c/eed73a65ab609b79d53de88cccc34b36dfe753c4"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-100079","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-100079","identifiers":["CVE-2026-100079"]},"retained":false,"historicalAffected":[]}],"coverage":[]}