In arm_lpae_split_blk_unmap of drivers/iommu/io-pgtable-arm-common.c, there is a possible Logic error due to a logic error in the code. Thi…

In arm_lpae_split_blk_unmap of drivers/iommu/io-pgtable-arm-common.c, there is a possible Logic error due to a logic error in the code. This could lead to local escalation of privilege with User execution privileges needed. User interaction is not needed for exploitation.