CVEvulnerability
CVE-2026-98199
- Status
- Received
- Published
- 2026-10-06
- Last modified
- 2026-10-19
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
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.
References
- https://git.kernel.org/stable/c/06bd6794b5fd2163880ac3bfe973d4cc61f359f3 git.kernel.org
- https://git.kernel.org/stable/c/1ec644c94466834f8cb6b7ba12636fd047bdfdda git.kernel.org
- https://git.kernel.org/stable/c/272006a52cbd9c8342cead4d3eb9221ebbe8b985 git.kernel.org
- https://git.kernel.org/stable/c/66368f682a53f3a3842e20eebb571a59809c52c0 git.kernel.org
- https://git.kernel.org/stable/c/9558fc1e042ac6b12dd63c37d2c51be4ec86d402 git.kernel.org
- https://git.kernel.org/stable/c/b32607710a20ad983f9fe4a3051892584c0641a4 git.kernel.org
- https://git.kernel.org/stable/c/b49f100a15b8876deccf8c59f41af92b8e25fd74 git.kernel.org