[15/16] esp6: fix incorrect null pointer check on xo

Message ID 1492678515-14347-16-git-send-email-steffen.klassert@secunet.com
State Accepted
Delegated to: David Miller
Headers show

Commit Message

Steffen Klassert April 20, 2017, 8:55 a.m.
From: Colin Ian King <colin.king@canonical.com>

The check for xo being null is incorrect, currently it is checking
for non-null, it should be checking for null.

Detected with CoverityScan, CID#1429349 ("Dereference after null check")

Fixes: 7862b4058b9f ("esp: Add gso handlers for esp4 and esp6")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
 net/ipv6/esp6_offload.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)


diff --git a/net/ipv6/esp6_offload.c b/net/ipv6/esp6_offload.c
index 1cceeee..95f10728 100644
--- a/net/ipv6/esp6_offload.c
+++ b/net/ipv6/esp6_offload.c
@@ -120,7 +120,7 @@  static struct sk_buff *esp6_gso_segment(struct sk_buff *skb,
 	netdev_features_t esp_features = features;
 	struct xfrm_offload *xo = xfrm_offload(skb);
-	if (xo)
+	if (!xo)
 		goto out;
 	seq = xo->seq.low;