CVE-2026-100079
Description
In 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.
How to fix
- linux linux_kernel6.6.157, 6.12.110, 6.18.52, 7.2.6 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 6.6 ≤ v < 6.6.157, 6.7 ≤ v < 6.12.110, 6.13 ≤ v < 6.18.52, 6.19 ≤ v < 7.2.6 | 6.6.157, 6.12.110, 6.18.52, 7.2.6 |
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