CVE-2026-46007
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
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| debian | bookworm | fixed | 0 |
| debian | bullseye | fixed | 0 |
| debian | forky | fixed | 7.0.4-1 |
| debian | sid | fixed | 7.0.4-1 |
| debian | trixie | fixed | 6.12.88-1 |
References
- https://git.kernel.org/stable/c/270e5c576a6e30f6b337fa91d35b44c241297533
- https://git.kernel.org/stable/c/1869da3efe703b016b23d4885f3fe6c1751959c6
- https://git.kernel.org/stable/c/2fa2273016a0483217404cfe330967c4ac6832a9
- https://git.kernel.org/stable/c/3023c050af3600bf451153335dea5e073c9a3088
- https://security-tracker.debian.org/tracker/CVE-2026-46007
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.