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From: Amerigo Wang <amwang@redhat.com>
To: linux-kernel@vger.kernel.org
Cc: netdev@vger.kernel.org, Amerigo Wang <amwang@redhat.com>,
	"David S. Miller" <davem@davemloft.net>
Subject: [Patch] net: fix an array index overflow
Date: Tue, 1 Dec 2009 03:26:02 -0500	[thread overview]
Message-ID: <20091201082901.4678.16688.sendpatchset@localhost.localdomain> (raw)


Don't use the address of an out-of-boundary element.

Maybe this is not harmful at runtime, but it is still
good to improve it.

Signed-off-by: WANG Cong <amwang@redhat.com>
Cc: David S. Miller <davem@davemloft.net>

---
diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c
index 57737b8..2669361 100644
--- a/net/ipv4/af_inet.c
+++ b/net/ipv4/af_inet.c
@@ -1586,7 +1586,7 @@ static int __init inet_init(void)
 #endif
 
 	/* Register the socket-side information for inet_create. */
-	for (r = &inetsw[0]; r < &inetsw[SOCK_MAX]; ++r)
+	for (r = &inetsw[0]; r <= &inetsw[SOCK_MAX-1]; ++r)
 		INIT_LIST_HEAD(r);
 
 	for (q = inetsw_array; q < &inetsw_array[INETSW_ARRAY_LEN]; ++q)

             reply	other threads:[~2009-12-01  8:26 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-12-01  8:26 Amerigo Wang [this message]
2009-12-01  8:48 ` [Patch] net: fix an array index overflow Eric Dumazet
2009-12-01  8:56   ` Cong Wang
2009-12-02 13:24 ` Dan Carpenter
2009-12-03  8:30   ` Cong Wang

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