Re: [PATCH bpf] selftests/bpf: test ringbuf mmap read-only and read-write restrictions

[Alexei Starovoitov <alexei.starovoitov@xxxxxxxxx>]

On Fri, May 14, 2021 at 1:11 PM Andrii Nakryiko <andrii@xxxxxxxxxx> wrote:
>
> Extend ringbuf selftest to validate read/write and read-only restrictions on
> memory mapping consumer/producer/data pages. Ensure no "escalations" from
> PROT_READ to PROT_WRITE/PROT_EXEC is allowed. And test that mremap() fails to
> expand mmap()'ed area.
>
> Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@xxxxxxxxxxxxx>
> Signed-off-by: Andrii Nakryiko <andrii@xxxxxxxxxx>

Applied.