On 31/07/20 22:18, Sean Christopherson wrote:
> On Tue, Jul 14, 2020 at 05:23:51PM +0300, Dan Carpenter wrote:
>> The sev_pin_memory() function was modified to return error pointers
>> instead of NULL but there are two problems. The first problem is that
>> if "npages" is zero then it still returns NULL. Secondly, several of
>> the callers were not updated to check for error pointers instead of
>> NULL.
>>
>> Either one of these issues will lead to an Oops.
>>
>> Fixes: a8d908b5873c ("KVM: x86: report sev_pin_memory errors with PTR_ERR")
>
> Explicit Cc: to stable needed for KVM patches.
>
>> Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
>
> Reviewed-by: Sean Christopherson <sean.j.christopherson@xxxxxxxxx>
>
Fortunately it's only broken in 5.9. Queued, thanks.
Paolo
