ipv6: protect for_each_sk_fl_rcu in mem_check with rcu_read_lock_bh
Fixes a suspicious rcu derference warning. Cc: Florent Fourcot <florent.fourcot@enst-bretagne.fr> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -457,8 +457,10 @@ static int mem_check(struct sock *sk)
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if (room > FL_MAX_SIZE - FL_MAX_PER_SOCK)
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return 0;
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rcu_read_lock_bh();
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for_each_sk_fl_rcu(np, sfl)
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count++;
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rcu_read_unlock_bh();
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if (room <= 0 ||
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((count >= FL_MAX_PER_SOCK ||
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