CVE-2026-90028

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.

• https://git.kernel.org/stable/c/c9a48db776d7184981630ecc01a3ad30a8f7dc24
• https://git.kernel.org/stable/c/df7cd3908e07503fa7e9737dacf44208530e58d9

Published

Sep 16, 2026

Last Modified

Sep 16, 2026

Status

Received

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