Commit f8c31c8f authored Nov 08, 2013 by Hannes Frederic Sowa Committed by David S. Miller Nov 11, 2013

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>

parent e267cb96

net/ipv6/ip6_flowlabel.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -457,8 +457,10 @@ static int mem_check(struct sock *sk)
		if (room > FL_MAX_SIZE - FL_MAX_PER_SOCK)
		return 0;

		rcu_read_lock_bh();
		for_each_sk_fl_rcu(np, sfl)
		count++;
		rcu_read_unlock_bh();

		if (room <= 0 \|\|
		((count >= FL_MAX_PER_SOCK \|\|