Re: [PATCH bpf v2 2/2] selftests/bpf: add verifier test for PTR_TO_MEM spill

[KP Singh]

On Wed, Jan 13, 2021 at 5:05 PM Yonghong Song <yhs@xxxxxx> wrote:
>
>
>
> On 1/12/21 9:38 PM, Gilad Reti wrote:
> > Add a test to check that the verifier is able to recognize spilling of
> > PTR_TO_MEM registers, by reserving a ringbuf buffer, forcing the spill
> > of a pointer holding the buffer address to the stack, filling it back
> > in from the stack and writing to the memory area pointed by it.
> >
> > The patch was partially contributed by CyberArk Software, Inc.
> >
> > Signed-off-by: Gilad Reti <gilad.reti@xxxxxxxxx>
>
> I didn't verify result_unpriv = ACCEPT part. I think it is correct
> by checking code.
>
> Acked-by: Yonghong Song <yhs@xxxxxx>

Thanks for the description!

Acked-by: KP Singh <kpsingh@xxxxxxxxxx>