3.16.7-ckt9 -stable review patch. If anyone has any objections, please let me know.
------------------
From: Alexander Drozdov <al.drozdov@xxxxxxxxx>
commit fba04a9e0c869498889b6445fd06cbe7da9bb834 upstream.
skb_copy_bits() returns zero on success and negative value on error,
so it is needed to invert the condition in ip_check_defrag().
Fixes: 1bf3751ec90c ("ipv4: ip_check_defrag must not modify skb before unsharing")
Signed-off-by: Alexander Drozdov <al.drozdov@xxxxxxxxx>
Acked-by: Eric Dumazet <edumazet@xxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Luis Henriques <luis.henriques@xxxxxxxxxxxxx>
---
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 ed32313e307c..022b5f49aab7 100644
--- a/net/ipv4/ip_fragment.c
+++ b/net/ipv4/ip_fragment.c
@@ -685,7 +685,7 @@ struct sk_buff *ip_check_defrag(struct sk_buff *skb, u32 user)
if (skb->protocol != htons(ETH_P_IP))
return skb;
- if (!skb_copy_bits(skb, 0, &iph, sizeof(iph)))
+ if (skb_copy_bits(skb, 0, &iph, sizeof(iph)) < 0)
return skb;
if (iph.ihl < 5 || iph.version != 4)
--
To unsubscribe from this list: send the line "unsubscribe stable" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html