24 Jan, 2014

1 commit

• 3e2a4c183   test: check copy_to/from_user boundary validation ... Browse Code »

  To help avoid an architecture failing to correctly check kernel/user
  boundaries when handling copy_to_user, copy_from_user, put_user, or
  get_user, perform some simple tests and fail to load if any of them
  behave unexpectedly.

  Specifically, this is to make sure there is a way to notice if things
  like what was fixed in commit 8404663f81d2 ("ARM: 7527/1: uaccess:
  explicitly check __user pointer when !CPU_USE_DOMAINS") ever regresses
  again, for any architecture.

  Additionally, adds new "user" selftest target, which loads this module.

  Signed-off-by: Kees Cook
  Cc: Rusty Russell
  Cc: Joe Perches
  Signed-off-by: Andrew Morton
  Signed-off-by: Linus Torvalds

  Kees Cook

  2014-01-24 08:36:57 +0800