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* [patch] ipv6: pointer math error in ip6_tnl_parse_tlv_enc_lim()
@ 2017-02-01  8:46 ` Dan Carpenter
  0 siblings, 0 replies; 6+ messages in thread
From: Dan Carpenter @ 2017-02-01  8:46 UTC (permalink / raw)
  To: David S. Miller, Eric Dumazet
  Cc: Alexey Kuznetsov, James Morris, Hideaki YOSHIFUJI,
	Patrick McHardy, netdev, kernel-janitors

Casting is a high precedence operation but "off" and "i" are in terms of
bytes so we need to have some parenthesis here.

Fixes: fbfa743a9d2a ("ipv6: fix ip6_tnl_parse_tlv_enc_lim()")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>

diff --git a/net/ipv6/ip6_tunnel.c b/net/ipv6/ip6_tunnel.c
index ff8ee06491c3..75fac933c209 100644
--- a/net/ipv6/ip6_tunnel.c
+++ b/net/ipv6/ip6_tunnel.c
@@ -441,7 +441,7 @@ __u16 ip6_tnl_parse_tlv_enc_lim(struct sk_buff *skb, __u8 *raw)
 				if (i + sizeof(*tel) > optlen)
 					break;
 
-				tel = (struct ipv6_tlv_tnl_enc_lim *) skb->data + off + i;
+				tel = (struct ipv6_tlv_tnl_enc_lim *)(skb->data + off + i);
 				/* return index of option if found and valid */
 				if (tel->type == IPV6_TLV_TNL_ENCAP_LIMIT &&
 				    tel->length == 1)

^ permalink raw reply related	[flat|nested] 6+ messages in thread

* [patch] ipv6: pointer math error in ip6_tnl_parse_tlv_enc_lim()
@ 2017-02-01  8:46 ` Dan Carpenter
  0 siblings, 0 replies; 6+ messages in thread
From: Dan Carpenter @ 2017-02-01  8:46 UTC (permalink / raw)
  To: David S. Miller, Eric Dumazet
  Cc: Alexey Kuznetsov, James Morris, Hideaki YOSHIFUJI,
	Patrick McHardy, netdev, kernel-janitors

Casting is a high precedence operation but "off" and "i" are in terms of
bytes so we need to have some parenthesis here.

Fixes: fbfa743a9d2a ("ipv6: fix ip6_tnl_parse_tlv_enc_lim()")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>

diff --git a/net/ipv6/ip6_tunnel.c b/net/ipv6/ip6_tunnel.c
index ff8ee06491c3..75fac933c209 100644
--- a/net/ipv6/ip6_tunnel.c
+++ b/net/ipv6/ip6_tunnel.c
@@ -441,7 +441,7 @@ __u16 ip6_tnl_parse_tlv_enc_lim(struct sk_buff *skb, __u8 *raw)
 				if (i + sizeof(*tel) > optlen)
 					break;
 
-				tel = (struct ipv6_tlv_tnl_enc_lim *) skb->data + off + i;
+				tel = (struct ipv6_tlv_tnl_enc_lim *)(skb->data + off + i);
 				/* return index of option if found and valid */
 				if (tel->type = IPV6_TLV_TNL_ENCAP_LIMIT &&
 				    tel->length = 1)

^ permalink raw reply related	[flat|nested] 6+ messages in thread

* Re: [patch] ipv6: pointer math error in ip6_tnl_parse_tlv_enc_lim()
  2017-02-01  8:46 ` Dan Carpenter
@ 2017-02-01 15:26   ` Eric Dumazet
  -1 siblings, 0 replies; 6+ messages in thread
From: Eric Dumazet @ 2017-02-01 15:26 UTC (permalink / raw)
  To: Dan Carpenter
  Cc: David S. Miller, Eric Dumazet, Alexey Kuznetsov, James Morris,
	Hideaki YOSHIFUJI, Patrick McHardy, netdev, kernel-janitors

On Wed, 2017-02-01 at 11:46 +0300, Dan Carpenter wrote:
> Casting is a high precedence operation but "off" and "i" are in terms of
> bytes so we need to have some parenthesis here.
> 
> Fixes: fbfa743a9d2a ("ipv6: fix ip6_tnl_parse_tlv_enc_lim()")
> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>

Silly me. Thanks Dan !

Acked-by: Eric Dumazet <edumazet@google.com>

^ permalink raw reply	[flat|nested] 6+ messages in thread

* Re: [patch] ipv6: pointer math error in ip6_tnl_parse_tlv_enc_lim()
@ 2017-02-01 15:26   ` Eric Dumazet
  0 siblings, 0 replies; 6+ messages in thread
From: Eric Dumazet @ 2017-02-01 15:26 UTC (permalink / raw)
  To: Dan Carpenter
  Cc: David S. Miller, Eric Dumazet, Alexey Kuznetsov, James Morris,
	Hideaki YOSHIFUJI, Patrick McHardy, netdev, kernel-janitors

On Wed, 2017-02-01 at 11:46 +0300, Dan Carpenter wrote:
> Casting is a high precedence operation but "off" and "i" are in terms of
> bytes so we need to have some parenthesis here.
> 
> Fixes: fbfa743a9d2a ("ipv6: fix ip6_tnl_parse_tlv_enc_lim()")
> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>

Silly me. Thanks Dan !

Acked-by: Eric Dumazet <edumazet@google.com>



^ permalink raw reply	[flat|nested] 6+ messages in thread

* Re: [patch] ipv6: pointer math error in ip6_tnl_parse_tlv_enc_lim()
  2017-02-01  8:46 ` Dan Carpenter
@ 2017-02-01 17:31   ` David Miller
  -1 siblings, 0 replies; 6+ messages in thread
From: David Miller @ 2017-02-01 17:31 UTC (permalink / raw)
  To: dan.carpenter
  Cc: edumazet, kuznet, jmorris, yoshfuji, kaber, netdev, kernel-janitors

From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Wed, 1 Feb 2017 11:46:32 +0300

> Casting is a high precedence operation but "off" and "i" are in terms of
> bytes so we need to have some parenthesis here.
> 
> Fixes: fbfa743a9d2a ("ipv6: fix ip6_tnl_parse_tlv_enc_lim()")
> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>

Applied, thanks Dan.

^ permalink raw reply	[flat|nested] 6+ messages in thread

* Re: [patch] ipv6: pointer math error in ip6_tnl_parse_tlv_enc_lim()
@ 2017-02-01 17:31   ` David Miller
  0 siblings, 0 replies; 6+ messages in thread
From: David Miller @ 2017-02-01 17:31 UTC (permalink / raw)
  To: dan.carpenter
  Cc: edumazet, kuznet, jmorris, yoshfuji, kaber, netdev, kernel-janitors

From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Wed, 1 Feb 2017 11:46:32 +0300

> Casting is a high precedence operation but "off" and "i" are in terms of
> bytes so we need to have some parenthesis here.
> 
> Fixes: fbfa743a9d2a ("ipv6: fix ip6_tnl_parse_tlv_enc_lim()")
> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>

Applied, thanks Dan.

^ permalink raw reply	[flat|nested] 6+ messages in thread

end of thread, other threads:[~2017-02-01 17:31 UTC | newest]

Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2017-02-01  8:46 [patch] ipv6: pointer math error in ip6_tnl_parse_tlv_enc_lim() Dan Carpenter
2017-02-01  8:46 ` Dan Carpenter
2017-02-01 15:26 ` Eric Dumazet
2017-02-01 15:26   ` Eric Dumazet
2017-02-01 17:31 ` David Miller
2017-02-01 17:31   ` David Miller

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