Peter Zijlstra ad8c619750 x86/uaccess, sched/preempt: Verify access_ok() context
commit 7c4788950ba5922fde976d80b72baf46f14dee8d upstream.

I recently encountered wreckage because access_ok() was used where it
should not be, add an explicit WARN when access_ok() is used wrongly.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
[add include/preempt.h to fix build error - gregkh]
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-11-15 17:13:11 +01:00
..
2016-09-30 10:18:37 +02:00
2016-09-24 10:07:43 +02:00
2016-12-15 08:49:23 -08:00
2016-09-07 08:32:38 +02:00
2015-11-11 09:16:10 -08:00