Re: [PATCH bpf] selftests/bpf: test ringbuf mmap read-only and read-write restrictions
From: Song Liu <song@kernel.org>
Date: 2021-05-14 23:11:50
Also in:
bpf
On Fri, May 14, 2021 at 1:11 PM Andrii Nakryiko [off-list ref] 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 <redacted> Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: Song Liu <redacted>