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a070830096
comedi_fops.c utilizes memdup_user() to copy a userspace array. The new function memdup_array_user() provides a standardized way to copy userspace-arrays. It makes it easier to see that an array is being copied and, additionally, performs a generic overflow-check which might help make the code more robust in case of changes in the future. Replace memdup_user() with memdup_array_user(). Suggested-by: Dave Airlie <airlied@redhat.com> Signed-off-by: Philipp Stanner <pstanner@redhat.com> Reviewed-by: Ian Abbott <abbotti@mev.co.uk> Link: https://lore.kernel.org/r/20231103112932.75795-2-pstanner@redhat.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>