CVEvulnerability
CVE-2026-46007
5.5 MEDIUM
Official page ↗
- Status
- Analyzed
- Published
- 2026-05-27
- Last modified
- 2026-06-17
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- CVSS 3.1 ([email protected])
- 5.5 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
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
Affected configurations
• linux linux kernel (>= 6.7 < 6.12.88)
• linux linux kernel (>= 6.13 < 6.18.30)
• linux linux kernel (>= 6.19 < 7.0.4)
References
- https://git.kernel.org/stable/c/1869da3efe703b016b23d4885f3fe6c1751959c6 Patch
- https://git.kernel.org/stable/c/270e5c576a6e30f6b337fa91d35b44c241297533 Patch
- https://git.kernel.org/stable/c/2fa2273016a0483217404cfe330967c4ac6832a9 Patch
- https://git.kernel.org/stable/c/3023c050af3600bf451153335dea5e073c9a3088 Patch