tcp/dccp: fix inet_reuseport_add_sock()

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David Ahern reported panics in __inet_hash() caused by my recent commit.

The reason is inet_reuseport_add_sock() was still using
sk_nulls_for_each_rcu() instead of sk_for_each_rcu().
SO_REUSEPORT enabled listeners were causing an instant crash.

While chasing this bug, I found that I forgot to clear SOCK_RCU_FREE
flag, as it is inherited from the parent at clone time.

Fixes: 3b24d854cb ("tcp/dccp: do not touch listener sk_refcnt under synflood")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: David Ahern <dsa@cumulusnetworks.com>
Tested-by: David Ahern <dsa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Eric Dumazet 2016-04-06 22:07:34 -07:00 • committed by David S. Miller

parent 94ab1ea94c

commit 8501786929

2 changed files with 4 additions and 2 deletions

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3

net/ipv4/inet_connection_sock.c

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3

net/ipv4/inet_hashtables.c

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