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CVE-2026-72395

Last refreshed2026-10-30

Status: UPDATED  |  Advisory ID: CVE-2026-72395

Key Details

CVECVE-2026-72395
CVSS Score / Version
7.1 (High) / CVSS v3.1
Updated2026-10-30
CVSS Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
CVSS Prose
attack vector is local; attack complexity is low; privileges required is low; user interaction is none; scope is unchanged; confidentiality impact is none; integrity impact is high; availability impact is high.
Affected products
Linux Kernel

Affected Products, Subsystems & Sectors

VendorProductAffected VersionsPatch Status
LinuxLinux Kernel
SubsystemsOT Supporting Infrastructure
SectorsAll Sectors

What to Know

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. (NVD)

What to Do

Monitor Linux's web page for any future patch releases.

References

SourceReference
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2026-72395
CVEhttps://www.cve.org/CVERecord?id=CVE-2026-72395
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