bpf: add bpf_clone_redirect to bpf_helper_changes_pkt_data
authorDaniel Borkmann <daniel@iogearbox.net>
Wed, 24 May 2017 23:05:07 +0000 (01:05 +0200)
committerDavid S. Miller <davem@davemloft.net>
Thu, 25 May 2017 17:44:28 +0000 (13:44 -0400)
commit41703a731066fde79c3e5ccf3391cf77a98aeda5
tree829c5ce74500c834675e614803c56e31e06802cc
parenta9789ef9afcb4fb0193f8dd94f2665ba3ad71e79
bpf: add bpf_clone_redirect to bpf_helper_changes_pkt_data

The bpf_clone_redirect() still needs to be listed in
bpf_helper_changes_pkt_data() since we call into
bpf_try_make_head_writable() from there, thus we need
to invalidate prior pkt regs as well.

Fixes: 36bbef52c7eb ("bpf: direct packet write and access for helpers for clsact progs")
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
net/core/filter.c