| commit | ddb47d518ca10948d1f64a983cb9274720f691cd | [log] [tgz] |
|---|---|---|
| author | Jesper Dangaard Brouer <brouer@redhat.com> | Thu May 14 12:51:30 2020 +0200 |
| committer | Alexei Starovoitov <ast@kernel.org> | Thu May 14 21:21:56 2020 -0700 |
| tree | 0cf318eef490d4bc486d0eeae7604cd6a660f8ab | |
| parent | c8741e2bfe872425ea6f10bb6f7dc1d67bc60c3a [diff] |
xdp: Clear grow memory in bpf_xdp_adjust_tail() Clearing memory of tail when grow happens, because it is too easy to write a XDP_PASS program that extend the tail, which expose this memory to users that can run tcpdump. Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Toke Høiland-Jørgensen <toke@redhat.com> Link: https://lore.kernel.org/bpf/158945349039.97035.5262100484553494.stgit@firesoul