diff --git a/net/core/timestamping.c b/net/core/timestamping.c
index 0ae6c22..c19bb4e 100644
--- a/net/core/timestamping.c
+++ b/net/core/timestamping.c
@@ -96,11 +96,13 @@
 	struct phy_device *phydev;
 	unsigned int type;
 
-	skb_push(skb, ETH_HLEN);
+	if (skb_headroom(skb) < ETH_HLEN)
+		return false;
+	__skb_push(skb, ETH_HLEN);
 
 	type = classify(skb);
 
-	skb_pull(skb, ETH_HLEN);
+	__skb_pull(skb, ETH_HLEN);
 
 	switch (type) {
 	case PTP_CLASS_V1_IPV4: