diff --git a/kernel/ptrace.c b/kernel/ptrace.c
index ef9926c807..bcc8888fcb 100644
--- a/kernel/ptrace.c
+++ b/kernel/ptrace.c
@@ -350,10 +350,13 @@ ok:
 	 */
 	smp_rmb();
 	mm = task->mm;
-	if (mm &&
-	    ((get_dumpable(mm) != SUID_DUMP_USER) &&
-	     !ptrace_has_cap(mm->user_ns, mode)))
-	    return -EPERM;
+	if (mm) {
+		if ((get_dumpable(mm) != SUID_DUMP_USER) &&
+		    !ptrace_has_cap(mm->user_ns, mode))
+			return -EPERM;
+	} else if (!ptrace_has_cap(&init_user_ns, mode)) {
+		return -EPERM;
+	}
 
 	return security_ptrace_access_check(task, mode);
 }
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index c2c53c1c31..1cf7ff4257 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -1807,6 +1807,7 @@ struct sk_buff *__pskb_copy_fclone(struct sk_buff *skb, int headroom,
 			skb_frag_ref(skb, i);
 		}
 		skb_shinfo(n)->nr_frags = i;
+		skb_shinfo(n)->tx_flags |= skb_shinfo(skb)->tx_flags & SKBTX_SHARED_FRAG;
 	}
 
 	if (skb_has_frag_list(skb)) {
@@ -3696,6 +3697,8 @@ onlymerged:
 	tgt->ip_summed = CHECKSUM_PARTIAL;
 	skb->ip_summed = CHECKSUM_PARTIAL;
 
+	skb_shinfo(tgt)->tx_flags |= skb_shinfo(skb)->tx_flags & SKBTX_SHARED_FRAG;
+
 	/* Yak, is it really working this way? Some helper please? */
 	skb->len -= shiftlen;
 	skb->data_len -= shiftlen;
@@ -4119,6 +4122,8 @@ int skb_gro_receive_list(struct sk_buff *p, struct sk_buff *skb)
 	p->truesize += skb->truesize;
 	p->len += skb->len;
 
+	skb_shinfo(p)->tx_flags |= skb_shinfo(skb)->tx_flags & SKBTX_SHARED_FRAG;
+
 	NAPI_GRO_CB(skb)->same_flow = 1;
 
 	return 0;
@@ -4586,10 +4591,12 @@ done:
 	p->data_len += len;
 	p->truesize += delta_truesize;
 	p->len += len;
+	skb_shinfo(p)->tx_flags |= skbinfo->tx_flags & SKBTX_SHARED_FRAG;
 	if (lp != p) {
 		lp->data_len += len;
 		lp->truesize += delta_truesize;
 		lp->len += len;
+		skb_shinfo(lp)->tx_flags |= skbinfo->tx_flags & SKBTX_SHARED_FRAG;
 	}
 	NAPI_GRO_CB(skb)->same_flow = 1;
 	return 0;
@@ -5576,6 +5583,8 @@ bool skb_try_coalesce(struct sk_buff *to, struct sk_buff *from,
 	       from_shinfo->frags,
 	       from_shinfo->nr_frags * sizeof(skb_frag_t));
 	to_shinfo->nr_frags += from_shinfo->nr_frags;
+	if (from_shinfo->nr_frags)
+		to_shinfo->tx_flags |= from_shinfo->tx_flags & SKBTX_SHARED_FRAG;
 
 	if (!skb_cloned(from))
 		from_shinfo->nr_frags = 0;