[PATCH v6 00/17] iommu/arm-smmu-v3: Quarantine device upon ATC invalidation timeout
Will Deacon
will at kernel.org
Sun Oct 4 09:50:43 PDT 2026
On Wed, 23 Sep 2026 13:11:19 -0700, Nicolin Chen wrote:
> This series addresses a critical vulnerability and stability issue where an
> unresponsive PCIe device failing to process ATC (Address Translation Cache)
> invalidation requests leads to silent data corruption and continuous SMMU
> CMDQ error spam.
>
> [ As Jason pointed out, because this series fundamentally introduces a new
> RAS feature to quarantine and recover from hardware faults and relies on
> a recently accepted SMMU driver rework, it is not treated as a standard
> bug fix. Thus, most of the patches here don't carry a "Fixes" tag. ]
>
> [...]
Applied SMMU rbtree fix to iommu (arm/smmu/updates), thanks!
[06/17] iommu/arm-smmu-v3: Don't rb_erase() a never-inserted stream node
https://git.kernel.org/iommu/c/2888520bdcbe
Cheers,
--
Will
https://fixes.arm64.dev
https://next.arm64.dev
https://will.arm64.dev
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