v4: use dev_WARN_ONCE() and improve report string (gregkh, robin) v3: https://lore.kernel.org/lkml/[email protected] v2: https://lore.kernel.org/lkml/201910041420.F6E55D29A@keescook v1: https://lore.kernel.org/lkml/201910021341.7819A660@keescook
Duplicating patch 1 commit log: As we've seen from USB and other areas[1], we need to always do runtime checks for DMA operating on memory regions that might be remapped. This adds vmap checks (similar to those already in USB but missing in other places) into dma_map_single() so all callers benefit from the checking. [1] https://git.kernel.org/linus/3840c5b78803b2b6cc1ff820100a74a092c40cbb -Kees Kees Cook (2): dma-mapping: Add vmap checks to dma_map_single() usb: core: Remove redundant vmap checks drivers/usb/core/hcd.c | 8 +------- include/linux/dma-mapping.h | 6 ++++++ 2 files changed, 7 insertions(+), 7 deletions(-) -- 2.17.1 _______________________________________________ iommu mailing list [email protected] https://lists.linuxfoundation.org/mailman/listinfo/iommu
