[PATCH v2 6/6] powerpc/pkeys: Deny read/write/execute by default
Florian Weimer
fweimer at redhat.com
Tue Jun 19 23:19:56 AEST 2018
On 06/19/2018 02:39 PM, Michael Ellerman wrote:
> Ram Pai <linuxram at us.ibm.com> writes:
>> Deny all permissions on all keys, with some exceptions. pkey-0 must
>> allow all permissions, or else everything comes to a screaching halt.
>> Execute-only key must allow execute permission.
>
> Another ABI change.
>
> Are we calling this a bug fix?
Yes. Note that the default is configurable on x86 (default is deny), so
it's not really an ABI change as such IMHO.
Thanks,
Florian
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