usb: typec: hd3ss3220: track VBUS enable state per consumer
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 7.2.5
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
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.
Timeline
- CVE published
- Record last updated
Affected versions
- Linux Linux
From b3f9d6e491fda73c319547881b78cdd2a222b293 · fixed in df7cd3908e07503fa7e9737dacf44208530e58d9; From b3f9d6e491fda73c319547881b78cdd2a222b293 · fixed in c9a48db776d7184981630ecc01a3ad30a8f7dc24
- Linux Linux
7.0
- KernelLinux
From 7.0.0 · fixed in 7.2.5