Re: [PATCHv6 bpf-next 1/9] x86/shstk: Make return uprobe work with shadow stack

[Oleg Nesterov]

On 05/21, Jiri Olsa wrote:
>
> Currently the application with enabled shadow stack will crash
> if it sets up return uprobe. The reason is the uretprobe kernel
> code changes the user space task's stack, but does not update
> shadow stack accordingly.
>
> Adding new functions to update values on shadow stack and using
> them in uprobe code to keep shadow stack in sync with uretprobe
> changes to user stack.

I don't think my ack has any value in this area but looks good to me.

Reviewed-by: Oleg Nesterov <oleg@xxxxxxxxxx>


> Fixes: 8b1c23543436 ("x86/shstk: Add return uprobe support")

Hmm... Was this commit ever applied?

Oleg.