Bug 2395233 (CVE-2023-53206)

Summary: CVE-2023-53206 kernel: hwmon: (pmbus_core) Fix NULL pointer dereference
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
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OS: Linux   
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Description OSIDB Bzimport 2025-09-15 15:02:04 UTC 
In the Linux kernel, the following vulnerability has been resolved:

hwmon: (pmbus_core) Fix NULL pointer dereference

Pass i2c_client to _pmbus_is_enabled to drop the assumption
that a regulator device is passed in.

This will fix the issue of a NULL pointer dereference when called from
_pmbus_get_flags.
Comment 1 Keith Grant 2025-09-15 17:30:56 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025091510-CVE-2023-53206-33fc@gregkh/T