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

Summary

CVECVE-2026-98199
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-10-06 09:18:05 UTC
Updated2026-10-19 10:18:20 UTC
DescriptionIn 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.

Risk And Classification

EPSS: 0.002150000 probability, percentile 0.107990000 (date 2026-10-06)

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 2c6fcbb211494f1ff6ef384776944b9e04f4c14c 272006a52cbd9c8342cead4d3eb9221ebbe8b985 git Not specified
CNA Linux Linux affected 2c6fcbb211494f1ff6ef384776944b9e04f4c14c b32607710a20ad983f9fe4a3051892584c0641a4 git Not specified
CNA Linux Linux affected 2c6fcbb211494f1ff6ef384776944b9e04f4c14c 66368f682a53f3a3842e20eebb571a59809c52c0 git Not specified
CNA Linux Linux affected 2c6fcbb211494f1ff6ef384776944b9e04f4c14c 1ec644c94466834f8cb6b7ba12636fd047bdfdda git Not specified
CNA Linux Linux affected 2c6fcbb211494f1ff6ef384776944b9e04f4c14c 9558fc1e042ac6b12dd63c37d2c51be4ec86d402 git Not specified
CNA Linux Linux affected 2c6fcbb211494f1ff6ef384776944b9e04f4c14c b49f100a15b8876deccf8c59f41af92b8e25fd74 git Not specified
CNA Linux Linux affected 2c6fcbb211494f1ff6ef384776944b9e04f4c14c 06bd6794b5fd2163880ac3bfe973d4cc61f359f3 git Not specified
CNA Linux Linux affected 5.10 Not specified
CNA Linux Linux unaffected 5.10 semver Not specified
CNA Linux Linux unaffected 5.15.222 5.15.* semver Not specified
CNA Linux Linux unaffected 6.1.189 6.1.* semver Not specified
CNA Linux Linux unaffected 6.6.158 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.112 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.54 6.18.* semver Not specified
CNA Linux Linux unaffected 7.2.8 7.2.* semver Not specified
CNA Linux Linux unaffected 7.3 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/b32607710a20ad983f9fe4a3051892584c0641a4 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/06bd6794b5fd2163880ac3bfe973d4cc61f359f3 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/b49f100a15b8876deccf8c59f41af92b8e25fd74 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/9558fc1e042ac6b12dd63c37d2c51be4ec86d402 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/1ec644c94466834f8cb6b7ba12636fd047bdfdda 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/272006a52cbd9c8342cead4d3eb9221ebbe8b985 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/66368f682a53f3a3842e20eebb571a59809c52c0 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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