On 17 January 2018 at 12:01, Ard Biesheuvel wrote:
> On 17 January 2018 at 10:19, Will Deacon wrote:
>> On Tue, Jan 16, 2018 at 02:08:32PM +, Mark Rutland wrote:
>>> Currently the arm/arm64 runtime code registers the runtime servies
>>> pagetables with ptdump regardless of whether runtime ser
On 17 January 2018 at 10:19, Will Deacon wrote:
> On Tue, Jan 16, 2018 at 02:08:32PM +, Mark Rutland wrote:
>> Currently the arm/arm64 runtime code registers the runtime servies
>> pagetables with ptdump regardless of whether runtime services page
>> tables have been created.
>>
>> As efi_mm.p
On Tue, Jan 16, 2018 at 02:08:32PM +, Mark Rutland wrote:
> Currently the arm/arm64 runtime code registers the runtime servies
> pagetables with ptdump regardless of whether runtime services page
> tables have been created.
>
> As efi_mm.pgd is NULL in these cases, attempting to dump the efi p
Currently the arm/arm64 runtime code registers the runtime servies
pagetables with ptdump regardless of whether runtime services page
tables have been created.
As efi_mm.pgd is NULL in these cases, attempting to dump the efi page
tables results in a NULL pointer dereference in the ptdump code:
/s