diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 0338820ee0ec67ce5b399b629984a0d05033e8c5..982d8d12830e411a2f262da3dffbc407ab40ff64 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -3664,6 +3664,25 @@ struct sk_buff *skb_segment(struct sk_buff *head_skb,
 	int pos;
 	int dummy;
 
+	if (list_skb && !list_skb->head_frag && skb_headlen(list_skb) &&
+	    (skb_shinfo(head_skb)->gso_type & SKB_GSO_DODGY)) {
+		/* gso_size is untrusted, and we have a frag_list with a linear
+		 * non head_frag head.
+		 *
+		 * (we assume checking the first list_skb member suffices;
+		 * i.e if either of the list_skb members have non head_frag
+		 * head, then the first one has too).
+		 *
+		 * If head_skb's headlen does not fit requested gso_size, it
+		 * means that the frag_list members do NOT terminate on exact
+		 * gso_size boundaries. Hence we cannot perform skb_frag_t page
+		 * sharing. Therefore we must fallback to copying the frag_list
+		 * skbs; we do so by disabling SG.
+		 */
+		if (mss != GSO_BY_FRAGS && mss != skb_headlen(head_skb))
+			features &= ~NETIF_F_SG;
+	}
+
 	__skb_push(head_skb, doffset);
 	proto = skb_network_protocol(head_skb, &dummy);
 	if (unlikely(!proto))