ipv4: fix broadcast packets reception

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[ Upstream commit ad0ea1989c ]

Currently, ingress ipv4 broadcast datagrams are dropped since,
in udp_v4_early_demux(), ip_check_mc_rcu() is invoked even on
bcast packets.

This patch addresses the issue, invoking ip_check_mc_rcu()
only for mcast packets.

Fixes: 6e54030932 ("ipv4/udp: Verify multicast group is ours in upd_v4_early_demux()")
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

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Paolo Abeni 2016-03-22 09:19:38 +01:00 • committed by Greg Kroah-Hartman

parent 8178211eb7

commit 2ddb181390

1 changed files with 8 additions and 4 deletions

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net/ipv4/udp.c

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