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| author | Willem de Bruijn <willemb@google.com> | 2017-09-26 18:20:17 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-09-28 19:24:31 +0200 |
| commit | da7c9561015e93d10fe6aab73e9288e0d09d65a6 (patch) | |
| tree | f7b60e018e78a975e17e327f614e6dddb07ea306 /lib/irq_regs.c | |
| parent | packet: in packet_do_bind, test fanout with bind_lock held (diff) | |
| download | linux-da7c9561015e93d10fe6aab73e9288e0d09d65a6.tar.xz linux-da7c9561015e93d10fe6aab73e9288e0d09d65a6.zip | |
packet: only test po->has_vnet_hdr once in packet_snd
Packet socket option po->has_vnet_hdr can be updated concurrently with
other operations if no ring is attached.
Do not test the option twice in packet_snd, as the value may change in
between calls. A race on setsockopt disable may cause a packet > mtu
to be sent without having GSO options set.
Fixes: bfd5f4a3d605 ("packet: Add GSO/csum offload support.")
Signed-off-by: Willem de Bruijn <willemb@google.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'lib/irq_regs.c')
0 files changed, 0 insertions, 0 deletions