Commits
Jan Beulich committed 7a3d9b0f3ab
x86: Unify copy_to_user() and add size checking to it Similarly to copy_from_user(), where the range check is to protect against kernel memory corruption, copy_to_user() can benefit from such checking too: Here it protects against kernel information leaks. Signed-off-by: Jan Beulich <jbeulich@suse.com> Cc: <arjan@linux.intel.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/5265059502000078000FC4F6@nat28.tlf.novell.com Signed-off-by: Ingo Molnar <mingo@kernel.org> Cc: Arjan van de Ven <arjan@linux.intel.com>