RE: [PATCH v7 3/5] iommu/arm-smmu-v3: Fix a UAF in the probe_device error path

[Tian, Kevin]

> From: Pranjal Shrivastava <praan@xxxxxxxxxx>
> Sent: Monday, June 1, 2026 10:37 PM
> 
> Clear the iommu->priv to NULL while returning an error from probe_device.
> 
> Fixes: a2be6218e649 ("iommu/arm-smmu-v3: Improve add_device() error
> handling")
> Signed-off-by: Pranjal Shrivastava <praan@xxxxxxxxxx>

probably add a note that UAF is theoretical at this point.

iommu_init_device() calls dev_iommu_free() right after @probe_device()
fails...

Reviewed-by: Kevin Tian <kevin.tian@xxxxxxxxx>