[PATCH] riscv: evaluate put_user() argument before enabling user access
Ben Dooks
ben.dooks at codethink.co.uk
Mon Mar 22 16:53:52 GMT 2021
On 22/03/2021 13:12, Andreas Schwab wrote:
> On Mär 22 2021, Ben Dooks wrote:
>
>> + * to the result of dereferencing @ptr. The @x is copied inside the macro
> The value of @x
>
>> + * to avoid code re-ordering where @x gets evaulated within the block that
>> + * enables user-space access (thus possibly bypassing some of the protection
>> + * this feautre provides).
> feature
Thanks, will fix this for the next version.
Do people think we should get this included into stable?
--
Ben Dooks http://www.codethink.co.uk/
Senior Engineer Codethink - Providing Genius
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