CVE-2026-98199

hwmon: (pmbus/core) increase number of phases and add new mask

State: Published
Severity: Not scored
Published: Oct 6, 2026
Updated: Oct 19, 2026
Reserved: Sep 25, 2026

Read the record on cve.org

Description

In the Linux kernel, the following vulnerability has been resolved:

hwmon: (pmbus/core) increase number of phases and add new mask

Increase the number of phases to 16 as a new upcoming device supports such a number.

While at it, add a new mask for controlling the source of the output voltage.

Note (groeck):

This patch was meant to prepare for support of MAX20826 and compatible devices, which support more than 10 phases per page. However, Sashiko reports that the mp2975 driver already supports up to 14 phases, and the mp2856 driver supports up to 12 phases. This already has the potential for out-of-bounds writes when probing the affected chips, making this patch a bug fix.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	2c6fcbb211494f1ff6ef384776944b9e04f4c14c to before 272006a52cbd9c8342cead4d3eb9221ebbe8b985Affected 2c6fcbb211494f1ff6ef384776944b9e04f4c14c to before b32607710a20ad983f9fe4a3051892584c0641a4Affected 2c6fcbb211494f1ff6ef384776944b9e04f4c14c to before 66368f682a53f3a3842e20eebb571a59809c52c0Affected 2c6fcbb211494f1ff6ef384776944b9e04f4c14c to before 1ec644c94466834f8cb6b7ba12636fd047bdfddaAffected 2c6fcbb211494f1ff6ef384776944b9e04f4c14c to before 9558fc1e042ac6b12dd63c37d2c51be4ec86d402Affected 2c6fcbb211494f1ff6ef384776944b9e04f4c14c to before b49f100a15b8876deccf8c59f41af92b8e25fd74Affected 2c6fcbb211494f1ff6ef384776944b9e04f4c14c to before 06bd6794b5fd2163880ac3bfe973d4cc61f359f3Affected
LinuxLinux	5.10Affected before 5.10Not affected 5.15.222 through 5.15.Not affected 6.1.189 through 6.1.Not affected 6.6.158 through 6.6.Not affected 6.12.112 through 6.12.Not affected 6.18.54 through 6.18.Not affected 7.2.8 through 7.2.Not affected 7.3 and laterNot affected

Product

Versions

LinuxLinux

2c6fcbb211494f1ff6ef384776944b9e04f4c14c to before 272006a52cbd9c8342cead4d3eb9221ebbe8b985Affected
2c6fcbb211494f1ff6ef384776944b9e04f4c14c to before b32607710a20ad983f9fe4a3051892584c0641a4Affected
2c6fcbb211494f1ff6ef384776944b9e04f4c14c to before 66368f682a53f3a3842e20eebb571a59809c52c0Affected
2c6fcbb211494f1ff6ef384776944b9e04f4c14c to before 1ec644c94466834f8cb6b7ba12636fd047bdfddaAffected
2c6fcbb211494f1ff6ef384776944b9e04f4c14c to before 9558fc1e042ac6b12dd63c37d2c51be4ec86d402Affected
2c6fcbb211494f1ff6ef384776944b9e04f4c14c to before b49f100a15b8876deccf8c59f41af92b8e25fd74Affected
2c6fcbb211494f1ff6ef384776944b9e04f4c14c to before 06bd6794b5fd2163880ac3bfe973d4cc61f359f3Affected

LinuxLinux

5.10Affected
before 5.10Not affected
5.15.222 through 5.15.*Not affected
6.1.189 through 6.1.*Not affected
6.6.158 through 6.6.*Not affected
6.12.112 through 6.12.*Not affected
6.18.54 through 6.18.*Not affected
7.2.8 through 7.2.*Not affected
7.3 and laterNot affected

References

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