Hello. (apologies for late reply) I've aggregated the two previously discussed patches into one series and based on responses made some changes summed below. v2 - insert a patch refactoring validate_prctl_map - move find_vma out of the arg_lock critical section Michal Koutný (3): mm: get_cmdline use arg_lock instead of mmap_sem prctl_set_mm: Refactor checks from validate_prctl_map prctl_set_mm: downgrade mmap_sem to read lock kernel/sys.c | 55 ++++++++++++++++++++++++++++--------------------------- mm/util.c | 4 ++-- 2 files changed, 30 insertions(+), 29 deletions(-) -- 2.16.4