usb: typec: ucsi: unregister debugfs entries on teardown

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-100079
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-25 14:17:15 UTC
Updated2026-09-25 14:17:15 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: usb: typec: ucsi: unregister debugfs entries on teardown ucsi_register() creates per-instance debugfs entries, but ucsi_unregister() keeps them around until ucsi_destroy(). Drivers like ucsi_glink that unregister/register the same UCSI instance across remoteproc restart then try to create an already existing debugfs directory and log: debugfs: 'pmic_glink.ucsi.0' already exists in 'ucsi' Unregister debugfs entries as part of ucsi_unregister(), and clear ucsi->debugfs after freeing it so repeated unregister paths remain safe.

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected df0383ffad64dc09954a60873c1e202b47f08d90 fb7393519908befdc094be4ea913f582adbf2f7c git Not specified
CNA Linux Linux affected df0383ffad64dc09954a60873c1e202b47f08d90 7177c215e69658adbd2f2fc5b72e14be9208d2ba git Not specified
CNA Linux Linux affected df0383ffad64dc09954a60873c1e202b47f08d90 1f44d001620fd3caa30619a9bc73e9d15555408b git Not specified
CNA Linux Linux affected df0383ffad64dc09954a60873c1e202b47f08d90 62efee351566321ad72a4abaf6eb7d972590585d git Not specified
CNA Linux Linux affected df0383ffad64dc09954a60873c1e202b47f08d90 eed73a65ab609b79d53de88cccc34b36dfe753c4 git Not specified
CNA Linux Linux affected 6.6 Not specified
CNA Linux Linux unaffected 6.6 semver Not specified
CNA Linux Linux unaffected 6.6.157 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.110 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.52 6.18.* semver Not specified
CNA Linux Linux unaffected 7.2.6 7.2.* semver Not specified
CNA Linux Linux unaffected 7.3-rc1 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/eed73a65ab609b79d53de88cccc34b36dfe753c4 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/62efee351566321ad72a4abaf6eb7d972590585d 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/7177c215e69658adbd2f2fc5b72e14be9208d2ba 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/1f44d001620fd3caa30619a9bc73e9d15555408b 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/fb7393519908befdc094be4ea913f582adbf2f7c 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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