{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-100079","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-09-25T10:25:14.456Z","datePublished":"2026-09-25T13:06:49.915Z","dateUpdated":"2026-09-25T13:06:49.915Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-09-25T13:06:49.915Z"},"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->debugfs after freeing it so repeated unregister\npaths remain safe."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/usb/typec/ucsi/debugfs.c","drivers/usb/typec/ucsi/ucsi.c"],"versions":[{"version":"df0383ffad64dc09954a60873c1e202b47f08d90","lessThan":"fb7393519908befdc094be4ea913f582adbf2f7c","status":"affected","versionType":"git"},{"version":"df0383ffad64dc09954a60873c1e202b47f08d90","lessThan":"7177c215e69658adbd2f2fc5b72e14be9208d2ba","status":"affected","versionType":"git"},{"version":"df0383ffad64dc09954a60873c1e202b47f08d90","lessThan":"1f44d001620fd3caa30619a9bc73e9d15555408b","status":"affected","versionType":"git"},{"version":"df0383ffad64dc09954a60873c1e202b47f08d90","lessThan":"62efee351566321ad72a4abaf6eb7d972590585d","status":"affected","versionType":"git"},{"version":"df0383ffad64dc09954a60873c1e202b47f08d90","lessThan":"eed73a65ab609b79d53de88cccc34b36dfe753c4","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/usb/typec/ucsi/debugfs.c","drivers/usb/typec/ucsi/ucsi.c"],"versions":[{"version":"6.6","status":"affected"},{"version":"0","lessThan":"6.6","status":"unaffected","versionType":"semver"},{"version":"6.6.157","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.110","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.52","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.2.6","lessThanOrEqual":"7.2.*","status":"unaffected","versionType":"semver"},{"version":"7.3-rc1","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.6","versionEndExcluding":"6.6.157"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.6","versionEndExcluding":"6.12.110"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.6","versionEndExcluding":"6.18.52"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.6","versionEndExcluding":"7.2.6"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.6","versionEndExcluding":"7.3-rc1"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/fb7393519908befdc094be4ea913f582adbf2f7c"},{"url":"https://git.kernel.org/stable/c/7177c215e69658adbd2f2fc5b72e14be9208d2ba"},{"url":"https://git.kernel.org/stable/c/1f44d001620fd3caa30619a9bc73e9d15555408b"},{"url":"https://git.kernel.org/stable/c/62efee351566321ad72a4abaf6eb7d972590585d"},{"url":"https://git.kernel.org/stable/c/eed73a65ab609b79d53de88cccc34b36dfe753c4"}],"title":"usb: typec: ucsi: unregister debugfs entries on teardown","x_generator":{"engine":"bippy-1.2.0"}}}}