Messages in this thread | | | Date | Tue, 30 Aug 2016 01:44:34 +0200 | From | Daniel Borkmann <> | Subject | Re: [PATCH net-next 1/6] bpf: support 8-byte metafield access |
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On 08/27/2016 04:31 AM, Alexei Starovoitov wrote: > The verifier supported only 4-byte metafields in > struct __sk_buff and struct xdp_md. The metafields in upcoming > struct bpf_perf_event are 8-byte to match register width in struct pt_regs. > Teach verifier to recognize 8-byte metafield access. > The patch doesn't affect safety of sockets and xdp programs. > They check for 4-byte only ctx access before these conditions are hit. > > Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
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