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H A D | neighbour.c | a4731138 Thu May 27 18:09:39 CDT 2010 Eric Dumazet <eric.dumazet@gmail.com> net: fix __neigh_event_send()
commit 7fee226ad23 (net: add a noref bit on skb dst) missed one spot where an skb is enqueued, with a possibly not refcounted dst entry.
__neigh_event_send() inserts skb into arp_queue, so we must make sure dst entry is refcounted, or dst entry can be freed by garbage collector after caller exits from rcu protected section.
Reported-by: Ingo Molnar <mingo@elte.hu> Tested-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net> a4731138 Thu May 27 18:09:39 CDT 2010 Eric Dumazet <eric.dumazet@gmail.com> net: fix __neigh_event_send() commit 7fee226ad23 (net: add a noref bit on skb dst) missed one spot where an skb is enqueued, with a possibly not refcounted dst entry. __neigh_event_send() inserts skb into arp_queue, so we must make sure dst entry is refcounted, or dst entry can be freed by garbage collector after caller exits from rcu protected section. Reported-by: Ingo Molnar <mingo@elte.hu> Tested-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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