tree 682dd44ea1710afbb7e61a24185ffa4c9a0fb0da
parent 5b43e7a383d69381ffe53423e46dd0fafae07da3
author Russell King <rmk+kernel@arm.linux.org.uk> 1372934432 +0100
committer Russell King <rmk+kernel@arm.linux.org.uk> 1375302696 +0100

ARM: move vector stubs

Move the machine vector stubs into the page above the vector page,
which we can prevent from being visible to userspace.  Also move
the reset stub, and place the swi vector at a location that the
'ldr' can get to it.

This hides pointers into the kernel which could give valuable
information to attackers, and reduces the number of exploitable
instructions at a fixed address.

Cc: <stable@vger.kernel.org>
Acked-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>