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| author | Jesper Dangaard Brouer <brouer@redhat.com> | 2020-05-14 12:51:30 +0200 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2020-05-14 21:21:56 -0700 |
| commit | ddb47d518ca10948d1f64a983cb9274720f691cd (patch) | |
| tree | 0cf318eef490d4bc486d0eeae7604cd6a660f8ab /init | |
| parent | c8741e2bfe872425ea6f10bb6f7dc1d67bc60c3a (diff) | |
| download | linux-ddb47d518ca10948d1f64a983cb9274720f691cd.tar.gz linux-ddb47d518ca10948d1f64a983cb9274720f691cd.tar.bz2 linux-ddb47d518ca10948d1f64a983cb9274720f691cd.zip | |
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
Diffstat (limited to 'init')
0 files changed, 0 insertions, 0 deletions