Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: usb: typec: hd3ss3220: track VBUS enable state per consumer regulator_is_enabled() reports the aggregate regulator state, not whether this consumer holds an enable reference. If another consumer enables VBUS first, the driver can skip its own regulator_enable() call and later attempt to drop a reference it never acquired, triggering an unbalanced regulator disable warning. Track successful enable and disable calls locally. Keep the state unchanged when an operation fails so a later role or ID notification retries the operation while this consumer keeps balanced references.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected b3f9d6e491fda73c319547881b78cdd2a222b293 before df7cd3908e07503fa7e9737dacf44208530e58d9; affected b3f9d6e491fda73c319547881b78cdd2a222b293 before c9a48db776d7184981630ecc01a3ad30a8f7dc24 |
| Linux / Linux | affected 7.0; unaffected 0 before 7.0; unaffected 7.2.5 through 7.2.*; unaffected 7.3 through * |
CWE
No CWE identifiers supplied.