[PATCH] check put_user fail in do_signal when enable OABI_COMPACT

[ye janboe]

hi, Russell

Your patch looks good for real fixing this issue.


2009/10/24 Russell King - ARM Linux <linux at arm.linux.org.uk>:
> On Thu, Oct 22, 2009 at 11:35:22AM +0800, ye janboe wrote:
>> hi,
>> No one think that it is possible that put_user could fail in some
>> situation even if currently kernel subtract 12 from ARM_sp and cross
>> page bound?
>
> It is possible, and it's something we should fix.  Note there's another
> fix in this area (I've just posted) which will make your patch invalid.
> Please wait until we've sorted out this other patch.
>