net: Drop secpath on free after gro merge.

With a followup patch, a gro merged skb can have a secpath.
So drop it before freeing or reusing the skb.

Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/net/core/dev.c b/net/core/dev.c
index 56818f7eab2b..ef3a969477bf 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -4623,6 +4623,7 @@ static gro_result_t napi_skb_finish(gro_result_t ret, struct sk_buff *skb)
         case GRO_MERGED_FREE:
                 if (NAPI_GRO_CB(skb)->free == NAPI_GRO_FREE_STOLEN_HEAD) {
                         skb_dst_drop(skb);
+                        secpath_reset(skb);
                         kmem_cache_free(skbuff_head_cache, skb);
                 } else {
                         __kfree_skb(skb);
@@ -4663,6 +4664,7 @@ static void napi_reuse_skb(struct napi_struct *napi, struct sk_buff *skb)
         skb->encapsulation = 0;
         skb_shinfo(skb)->gso_type = 0;
         skb->truesize = SKB_TRUESIZE(skb_end_offset(skb));
+        secpath_reset(skb);
 
         napi->skb = skb;
 }