Riskcovery

CVE-2026-46007

hwmon: (powerz) Avoid cacheline sharing for DMA buffer

State
Published
Severity
Not scored
Published
May 27, 2026
Updated
Jun 14, 2026
Reserved
May 13, 2026

Read the record on cve.org

Description

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

hwmon: (powerz) Avoid cacheline sharing for DMA buffer

Depending on the architecture the transfer buffer may share a cacheline with the following mutex. As the buffer may be used for DMA, that is problematic.

Use the high-level DMA helpers to make sure that cacheline sharing can not happen.

Also drop the comment, as the helpers are documentation enough.

https://sashiko.dev/#/message/20260408175814.934BFC19421%40smtp.kernel.org

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • 4381a36abdf1c5c0323c1c51f869dc000115eb20 to before 270e5c576a6e30f6b337fa91d35b44c241297533Affected
  • 4381a36abdf1c5c0323c1c51f869dc000115eb20 to before 1869da3efe703b016b23d4885f3fe6c1751959c6Affected
  • 4381a36abdf1c5c0323c1c51f869dc000115eb20 to before 2fa2273016a0483217404cfe330967c4ac6832a9Affected
  • 4381a36abdf1c5c0323c1c51f869dc000115eb20 to before 3023c050af3600bf451153335dea5e073c9a3088Affected
LinuxLinux
  • 6.7Affected
  • before 6.7Not affected
  • 6.12.88 through 6.12.*Not affected
  • 6.18.30 through 6.18.*Not affected
  • 7.0.4 through 7.0.*Not affected
  • 7.1 and laterNot affected

References

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