Willem de Bruijn 57031eb794 packet: round up linear to header len ...

Link layer protocols may unconditionally pull headers, as Ethernet
does in eth_type_trans. Ensure that the entire link layer header
always lies in the skb linear segment. tpacket_snd has such a check.
Extend this to packet_snd.

Variable length link layer headers complicate the computation
somewhat. Here skb->len may be smaller than dev->hard_header_len.

Round up the linear length to be at least as long as the smallest of
the two.

Reported-by: Dmitry Vyukov <[email protected]>
Signed-off-by: Willem de Bruijn <[email protected]>
Acked-by: Eric Dumazet <[email protected]>
Signed-off-by: David S. Miller <[email protected]>

2017-02-08 13:56:37 -05:00

..

af_packet.c

packet: round up linear to header len

2017-02-08 13:56:37 -05:00

diag.c

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internal.h

packet: add classic BPF fanout mode

2015-08-17 14:22:47 -07:00

Kconfig

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Makefile

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