I saw a couple places where overflows could potentially occur. I've only compile tested these changes. Thanks, drew Andrew Jones (2): ACPI/IORT: Handle potential overflow in iort_dma_setup iommu/dma: Handle potential overflow in iommu_dma_init_domain drivers/acpi/arm64/iort.c | 7 ++++++- drivers/iommu/dma-iommu.c | 15 +++++++++------ 2 files changed, 15 insertions(+), 7 deletions(-) -- 2.17.2