compat: use scoped user access in get_compat_sigevent()

get_compat_sigevent() does one access_ok() on the user structure and
then reads four fields with __get_user().  Each of those reads enables
and disables user access on its own, so the single range check no longer
buys anything.

Read the fields inside a scoped_user_read_access() instead.

This is part of getting rid of __get_user() and __put_user() entirely.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

0 files changed, 0 insertions, 0 deletions