tree 2e3a2b1cd980f978375eda1c76b1d86e17db38bf
parent 62194bdab89b30f451d210247d09e1c146e6d0ad
author Will Deacon <will.deacon@arm.com> 1347038504 +0100
committer Russell King <rmk+kernel@arm.linux.org.uk> 1347046844 +0100

ARM: 7526/1: traps: send SIGILL if get_user fails on undef handling path

get_user may fail to load from the provided __user address due to an
unhandled fault generated by the access.

In the case of the undefined instruction trap, this results in failure
to load the faulting instruction, in which case we should send SIGILL to
the task rather than continue with potentially uninitialised data.

Signed-off-by: Will Deacon <will.deacon@arm.com>
Cc: stable@vger.kernel.org
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>