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From:   Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To:     linux-kernel@vger.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        stable@vger.kernel.org,
        "netdev@vger.kernel.org, stable@vger.kernel.org, edumazet@google.com,
        Dan Carpenter" <dan.carpenter@oracle.com>,
        "David S. Miller" <davem@davemloft.net>,
        Dan Carpenter <dan.carpenter@oracle.com>
Subject: [PATCH 4.14 118/126] ipv4: frags: precedence bug in ip_expire()
Date:   Tue, 18 Sep 2018 00:42:46 +0200
Message-Id: <20180917211711.719161775@linuxfoundation.org>
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References: <20180917211703.481236999@linuxfoundation.org>
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4.14-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Dan Carpenter <dan.carpenter@oracle.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@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
(cherry picked from commit 70837ffe3085c9a91488b52ca13ac84424da1042)
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/ipv4/ip_fragment.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/net/ipv4/ip_fragment.c
+++ b/net/ipv4/ip_fragment.c
@@ -154,7 +154,7 @@ static void ip_expire(struct timer_list
 	__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