CVE-2026-72395
In the Linux kernel, the following vulnerability has been resolved: hwmon: (pmbus) Fix passing events to regulator core Sashiko reports: Commit 754bd2b4a084 ("hwmon: (pmbus/core) Protect regulator operations with mutex") introduced a worker to batch regulator events over time using atomic_or(). The delayed worker then passes the combined bitmask unmodified to regulator_notifier_call_chain(). The core regulator subsystem's regulator_handle_critical() function evaluates the event parameter using a strict switch statement. If multiple distinct faults occur before the worker runs (e.g., REGULATOR_EVENT_UNDER_VOLTAGE | REGULATOR_EVENT_OVER_CURRENT), the combined bitmask fails to match any case. This leaves the reason as NULL and completely bypasses the critical hw_protection_trigger(). Fix the problem by passing events bit by bit to the regulator event handler.
Affected versions
Linux kernel versions
6.6.143,
6.12.92,
6.18.21,
6.19.11,
7.0
and later are affected. Fixed in
6.6.145,
6.12.97,
6.18.40,
7.1.5,
7.2-rc2
and their respective stable series.
References
5 totalFrequently asked questions
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What is CVE-2026-72395?
CVE-2026-72395 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 6.6.143 onward and has been patched in 6.6.145, 6.12.97, 6.18.40 and others. CVE-2026-72395 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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Is there a patch available for CVE-2026-72395?
Yes. CVE-2026-72395 has been patched. Fixed versions include 6.6.145, 6.12.97, 6.18.40 and others. If you are running Linux kernel 6.6.143 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2026-72395 actively exploited?
No. CVE-2026-72395 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.