CVE-2023-53206

hwmon: (pmbus_core) Fix NULL pointer dereference

MEDIUM
5.5
CVSS Score
Published: September 15, 2025 at 02:21 PM UTC
Updated: June 17, 2026 at 06:44 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.1%

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

6.4 ≤ v < 6.4.86.4 ≤ v < 6.56.46.5 rc16.5 rc26.5 rc3df5f6b6af01ca326dd4babb287c9580fed0ad3d6
Vendor states this is fixed in 0bd66784274a287beada2933c2c0fa3a0ddae0d7 (fixed)
Vendor states this is fixed in 7444253cacd92412bc8d33d1c9b5401f52cdf0e2 (fixed)
Vendor states this is fixed in 6.4 (unaffected)
Vendor states this is fixed in 6.4.8 (unaffected)
Vendor states this is fixed in 6.5 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (2)

Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/0bd66784274a287beada2933c2c0fa3a0ddae0d7
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/7444253cacd92412bc8d33d1c9b5401f52cdf0e2

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-476

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