{"attribution":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","cve":{"id":"CVE-2026-100079","sourceIdentifier":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","published":"2026-09-25T14:17:15.000","lastModified":"2026-10-19T09:17:06.757","vulnStatus":"Analyzed","cveTags":[],"descriptions":[{"lang":"en","value":"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."}],"affected":[{"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","affectedData":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","programFiles":["drivers/usb/typec/ucsi/debugfs.c","drivers/usb/typec/ucsi/ucsi.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"df0383ffad64dc09954a60873c1e202b47f08d90","lessThan":"fb7393519908befdc094be4ea913f582adbf2f7c","versionType":"git","status":"affected"},{"version":"df0383ffad64dc09954a60873c1e202b47f08d90","lessThan":"7177c215e69658adbd2f2fc5b72e14be9208d2ba","versionType":"git","status":"affected"},{"version":"df0383ffad64dc09954a60873c1e202b47f08d90","lessThan":"1f44d001620fd3caa30619a9bc73e9d15555408b","versionType":"git","status":"affected"},{"version":"df0383ffad64dc09954a60873c1e202b47f08d90","lessThan":"62efee351566321ad72a4abaf6eb7d972590585d","versionType":"git","status":"affected"},{"version":"df0383ffad64dc09954a60873c1e202b47f08d90","lessThan":"eed73a65ab609b79d53de88cccc34b36dfe753c4","versionType":"git","status":"affected"}]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","programFiles":["drivers/usb/typec/ucsi/debugfs.c","drivers/usb/typec/ucsi/ucsi.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"6.6","status":"affected"},{"version":"0","lessThan":"6.6","versionType":"semver","status":"unaffected"},{"version":"6.6.157","lessThanOrEqual":"6.6.*","versionType":"semver","status":"unaffected"},{"version":"6.12.110","lessThanOrEqual":"6.12.*","versionType":"semver","status":"unaffected"},{"version":"6.18.52","lessThanOrEqual":"6.18.*","versionType":"semver","status":"unaffected"},{"version":"7.2.6","lessThanOrEqual":"7.2.*","versionType":"semver","status":"unaffected"},{"version":"7.3","lessThanOrEqual":"*","versionType":"original_commit_for_fix","status":"unaffected"}]}]}],"metrics":{"cvssMetricV31":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","baseScore":5.5,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":1.8,"impactScore":3.6}]},"weaknesses":[{"source":"nvd@nist.gov","type":"Primary","description":[{"lang":"en","value":"CWE-772"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.6","versionEndExcluding":"6.6.157","matchCriteriaId":"E7B3238E-F896-4651-B55B-440AFF545ADF"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.7","versionEndExcluding":"6.12.110","matchCriteriaId":"A19EC695-B7E1-41E5-B0EA-E331EFDA98A9"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.13","versionEndExcluding":"6.18.52","matchCriteriaId":"0457F732-0EA6-47D3-A69C-17A43B435D23"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.19","versionEndExcluding":"7.2.6","matchCriteriaId":"BAFE7055-A65A-44F4-BD4B-BF067EAE17F3"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/1f44d001620fd3caa30619a9bc73e9d15555408b","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/62efee351566321ad72a4abaf6eb7d972590585d","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/7177c215e69658adbd2f2fc5b72e14be9208d2ba","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/eed73a65ab609b79d53de88cccc34b36dfe753c4","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/fb7393519908befdc094be4ea913f582adbf2f7c","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]}]}}