dma-mapping: Add vmap checks to dma_map_single()
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/3840c5b7 Suggested-by:Laura Abbott <labbott@redhat.com> Signed-off-by:
Kees Cook <keescook@chromium.org> [hch: fixed the printk message] Signed-off-by:
Christoph Hellwig <hch@lst.de>
parent
a445e940
Please register or sign in to comment