diff --git a/net/core/skbuff.c b/net/core/skbuff.c index cd4b3a610961..732ea19927a4 100644 --- a/net/core/skbuff.c +++ b/net/core/skbuff.c @@ -4032,6 +4032,11 @@ struct sk_buff *skb_segment_list(struct sk_buff *skb, skb_push(skb, -skb_network_offset(skb) + offset); + /* Ensure the head is writeable before touching the shared info */ + err = skb_unclone(skb, GFP_ATOMIC); + if (err) + goto err_linearize; + skb_shinfo(skb)->frag_list = NULL; while (list_skb) {