usb: typec: hd3ss3220: track VBUS enable state per consumer

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Summary

CVECVE-2026-90028
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-16 11:17:15 UTC
Updated2026-09-16 11:17:15 UTC
DescriptionIn 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.

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected b3f9d6e491fda73c319547881b78cdd2a222b293 df7cd3908e07503fa7e9737dacf44208530e58d9 git Not specified
CNA Linux Linux affected b3f9d6e491fda73c319547881b78cdd2a222b293 c9a48db776d7184981630ecc01a3ad30a8f7dc24 git Not specified
CNA Linux Linux affected 7.0 Not specified
CNA Linux Linux unaffected 7.0 semver Not specified
CNA Linux Linux unaffected 7.2.5 7.2.* semver Not specified
CNA Linux Linux unaffected 7.3-rc2 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/df7cd3908e07503fa7e9737dacf44208530e58d9 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/c9a48db776d7184981630ecc01a3ad30a8f7dc24 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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