{"id":"CVE-2026-100079","summary":"usb: typec: ucsi: unregister debugfs entries on teardown","details":"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-\u003edebugfs after freeing it so repeated unregister\npaths remain safe.","modified":"2026-09-27T03:47:23.600023298Z","published":"2026-09-25T13:06:49.915Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/100xxx/CVE-2026-100079.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/1f44d001620fd3caa30619a9bc73e9d15555408b"},{"type":"WEB","url":"https://git.kernel.org/stable/c/62efee351566321ad72a4abaf6eb7d972590585d"},{"type":"WEB","url":"https://git.kernel.org/stable/c/7177c215e69658adbd2f2fc5b72e14be9208d2ba"},{"type":"WEB","url":"https://git.kernel.org/stable/c/eed73a65ab609b79d53de88cccc34b36dfe753c4"},{"type":"WEB","url":"https://git.kernel.org/stable/c/fb7393519908befdc094be4ea913f582adbf2f7c"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/100xxx/CVE-2026-100079.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-100079"},{"type":"PACKAGE","url":"https://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":"df0383ffad64dc09954a60873c1e202b47f08d90"},{"fixed":"fb7393519908befdc094be4ea913f582adbf2f7c"},{"fixed":"7177c215e69658adbd2f2fc5b72e14be9208d2ba"},{"fixed":"1f44d001620fd3caa30619a9bc73e9d15555408b"},{"fixed":"62efee351566321ad72a4abaf6eb7d972590585d"},{"fixed":"eed73a65ab609b79d53de88cccc34b36dfe753c4"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-100079.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.6.0"},{"fixed":"6.6.157"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.12.110"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.52"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.2.6"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-100079.json"}}],"schema_version":"1.9.0"}