Bug 2546453 (CVE-2026-98199) - CVE-2026-98199 kernel: hwmon: (pmbus/core) increase number of phases and add new mask
Summary: CVE-2026-98199 kernel: hwmon: (pmbus/core) increase number of phases and add ...
Keywords:
Status: NEW
Alias: CVE-2026-98199
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-10-06 09:22 UTC by OSIDB Bzimport
Modified: 2026-10-08 18:40 UTC (History)
17 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:


Attachments (Terms of Use)

Description OSIDB Bzimport 2026-10-06 09:22:55 UTC
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.


Note You need to log in before you can comment on or make changes to this bug.