| From | Jiri Slaby <> | Subject | [PATCH 3.12 064/101] netfilter: xt_bpf: add mising opaque struct sk_filter definition | Date | Wed, 3 Dec 2014 12:26:26 +0100 |
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From: Pablo Neira <pablo@netfilter.org>
3.12-stable review patch. If anyone has any objections, please let me know.
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commit e10038a8ec06ac819b7552bb67aaa6d2d6f850c1 upstream.
This structure is not exposed to userspace, so fix this by defining struct sk_filter; so we skip the casting in kernelspace. This is safe since userspace has no way to lurk with that internal pointer.
Fixes: e6f30c7 ("netfilter: x_tables: add xt_bpf match") Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> Acked-by: Willem de Bruijn <willemb@google.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Jiri Slaby <jslaby@suse.cz> --- include/uapi/linux/netfilter/xt_bpf.h | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/include/uapi/linux/netfilter/xt_bpf.h b/include/uapi/linux/netfilter/xt_bpf.h index 5dda450eb55b..2ec9fbcd06f9 100644 --- a/include/uapi/linux/netfilter/xt_bpf.h +++ b/include/uapi/linux/netfilter/xt_bpf.h @@ -6,6 +6,8 @@ #define XT_BPF_MAX_NUM_INSTR 64 +struct sk_filter; + struct xt_bpf_info { __u16 bpf_program_num_elem; struct sock_filter bpf_program[XT_BPF_MAX_NUM_INSTR]; -- 2.1.3
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