On Tue, 7 Dec 2021 19:33:15 +0800, yf.wang@xxxxxxxxxxxx wrote:
> From: Yunfei Wang <yf.wang@xxxxxxxxxxxx>
>
> In __arm_v7s_alloc_table function:
> iommu call kmem_cache_alloc to allocate page table, this function
> allocate memory may fail, when kmem_cache_alloc fails to allocate
> table, call virt_to_phys will be abnomal and return unexpected phys
> and goto out_free, then call kmem_cache_free to release table will
> trigger KE, __get_free_pages and free_pages have similar problem,
> so add error handle for page table allocation failure.
>
> [...]
Applied to will (for-joerg/arm-smmu/updates), thanks!
[1/1] iommu/io-pgtable-arm-v7s: Add error handle for page table allocation failure
https://git.kernel.org/will/c/a556cfe4cabc
Cheers,
--
Will
https://fixes.arm64.dev
https://next.arm64.dev
https://will.arm64.dev
