netdev - [PATCH v3 27/30] ipv4: frags: precedence bug in ip

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Date:   Thu, 13 Sep 2018 07:58:59 -0700
From:   Stephen Hemminger <stephen@...workplumber.org>
To:     davem@...emloft.net, gregkh@...uxfoundation.org
Cc:     netdev@...r.kernel.org, stable@...r.kernel.org,
        edumazet@...gle.com, Dan Carpenter <dan.carpenter@...cle.com>
Subject: [PATCH v3 27/30] ipv4: frags: precedence bug in ip_expire()

From: Dan Carpenter <dan.carpenter@...cle.com>

We accidentally removed the parentheses here, but they are required
because '!' has higher precedence than '&'.

Fixes: fa0f527358bd ("ip: use rb trees for IP frag queue.")
Signed-off-by: Dan Carpenter <dan.carpenter@...cle.com>
Signed-off-by: David S. Miller <davem@...emloft.net>
(cherry picked from commit 70837ffe3085c9a91488b52ca13ac84424da1042)
---
 net/ipv4/ip_fragment.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/ipv4/ip_fragment.c b/net/ipv4/ip_fragment.c
index 0e8f8de77e71..7cb7ed761d8c 100644
--- a/net/ipv4/ip_fragment.c
+++ b/net/ipv4/ip_fragment.c
@@ -154,7 +154,7 @@ static void ip_expire(struct timer_list *t)
 	__IP_INC_STATS(net, IPSTATS_MIB_REASMFAILS);
 	__IP_INC_STATS(net, IPSTATS_MIB_REASMTIMEOUT);
 
-	if (!qp->q.flags & INET_FRAG_FIRST_IN)
+	if (!(qp->q.flags & INET_FRAG_FIRST_IN))
 		goto out;
 
 	/* sk_buff::dev and sk_buff::rbnode are unionized. So we
-- 
2.18.0