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Date: Thu, 19 Dec 2013 11:51:46 +0000 From: Luis Henriques <luis.henriques@...onical.com> To: linux-kernel@...r.kernel.org, stable@...r.kernel.org, kernel-team@...ts.ubuntu.com Cc: Florent Fourcot <florent.fourcot@...t-bretagne.fr>, Hannes Frederic Sowa <hannes@...essinduktion.org>, "David S. Miller" <davem@...emloft.net>, Luis Henriques <luis.henriques@...onical.com> Subject: [PATCH 3.11 008/208] ipv6: protect for_each_sk_fl_rcu in mem_check with rcu_read_lock_bh 3.11.10.2 -stable review patch. If anyone has any objections, please let me know. ------------------ From: Hannes Frederic Sowa <hannes@...essinduktion.org> commit f8c31c8f80dd882f7eb49276989a4078d33d67a7 upstream. Fixes a suspicious rcu derference warning. Cc: Florent Fourcot <florent.fourcot@...t-bretagne.fr> Signed-off-by: Hannes Frederic Sowa <hannes@...essinduktion.org> Signed-off-by: David S. Miller <davem@...emloft.net> Signed-off-by: Luis Henriques <luis.henriques@...onical.com> --- net/ipv6/ip6_flowlabel.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/net/ipv6/ip6_flowlabel.c b/net/ipv6/ip6_flowlabel.c index 46e8843..f0ccdb7 100644 --- a/net/ipv6/ip6_flowlabel.c +++ b/net/ipv6/ip6_flowlabel.c @@ -453,8 +453,10 @@ 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 || -- 1.8.3.2 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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