macvlan: fix a race on port dismantle and possible skb leaks

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commit fe0ca7328d upstream.

We need to cancel the work queue after rcu grace period,
otherwise it can be rescheduled by incoming packets.

We need to purge queue if some skbs are still in it.

We can use __skb_queue_head_init() variant in
macvlan_process_broadcast()

Signed-off-by: Eric Dumazet <edumazet@google.com>
Fixes: 412ca1550c ("macvlan: Move broadcasts into a work queue")
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Luis Henriques <luis.henriques@canonical.com>

...

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Eric Dumazet 2014-10-22 19:43:46 -07:00 • committed by Luis Henriques

parent 788199b54e

commit ee6b6062ce

1 changed files with 8 additions and 2 deletions

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drivers/net/macvlan.c

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