| commit | 642c1654702731ab42a3be771bebbd6ef938f0dc | [log] [tgz] |
|---|---|---|
| author | Andrii Nakryiko <andriin@fb.com> | Fri Apr 10 13:26:13 2020 -0700 |
| committer | Daniel Borkmann <daniel@iogearbox.net> | Tue Apr 14 21:28:57 2020 +0200 |
| tree | 766a7490a2cdb507523f1369f73ec902fb699e85 | |
| parent | 1f6cb19be2e231fe092f40decb71f066eba090d7 [diff] |
selftests/bpf: Validate frozen map contents stays frozen Test that frozen and mmap()'ed BPF map can't be mprotect()'ed as writable or executable memory. Also validate that "downgrading" from writable to read-only doesn't screw up internal writable count accounting for the purposes of map freezing. Signed-off-by: Andrii Nakryiko <andriin@fb.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Link: https://lore.kernel.org/bpf/20200410202613.3679837-2-andriin@fb.com