CONFIG_HAVE_ARCH_HARDENED_USERCOPY (not configurable)
configname: CONFIG_HAVE_ARCH_HARDENED_USERCOPY
Linux Kernel Configuration
└─>Security options
└─>HAVE_ARCH_HARDENED_USERCOPY
In linux kernel since version 4.1 (release Date: 2015-06-21)
The architecture supports CONFIG_HARDENED_USERCOPY by
calling check_object_size() just before performing the
userspace copies in the low level implementation of
copy_to_user() and copy_from_user().
calling check_object_size() just before performing the
userspace copies in the low level implementation of
copy_to_user() and copy_from_user().