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| author | Daniel Borkmann <daniel@iogearbox.net> | 2018-10-24 22:05:47 +0200 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2018-10-25 17:02:06 -0700 |
| commit | 80b0d86a176cab6201719b8dfd806902b0c6e046 (patch) | |
| tree | 83740a6f5a2d27764c8cd5833546cd3e9cdaf8c8 /kernel/bpf/queue_stack_maps.c | |
| parent | d5563d367c2ce48ea3d675c77f7109f37311943d (diff) | |
| download | linux-80b0d86a176cab6201719b8dfd806902b0c6e046.tar.bz2 | |
bpf: fix direct packet write into pop/peek helpers
Commit f1a2e44a3aec ("bpf: add queue and stack maps") probably just
copy-pasted .pkt_access for bpf_map_{pop,peek}_elem() helpers, but
this is buggy in this context since it would allow writes into cloned
skbs which is invalid. Therefore, disable .pkt_access for the two.
Fixes: f1a2e44a3aec ("bpf: add queue and stack maps")
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Cc: Mauricio Vasquez B <mauricio.vasquez@polito.it>
Acked-by: Mauricio Vasquez B<mauricio.vasquez@polito.it>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'kernel/bpf/queue_stack_maps.c')
0 files changed, 0 insertions, 0 deletions