PT-2026-43874 · Linux · Linux

Published 2026-05-27 · Updated 2026-05-27 · CVE-2026-46007

NVD

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

Related Identifiers

CVE-2026-46007

Affected Products

Linux

References · 5

• https://nvd.nist.gov/vuln/detail/CVE-2026-46007 · Security Note
• https://git.kernel.org/stable/c/3023c050af3600bf451153335dea5e073c9a3088 · Note
• https://git.kernel.org/stable/c/2fa2273016a0483217404cfe330967c4ac6832a9 · Note
• https://git.kernel.org/stable/c/1869da3efe703b016b23d4885f3fe6c1751959c6 · Note
• https://git.kernel.org/stable/c/270e5c576a6e30f6b337fa91d35b44c241297533 · Note