1 files changed, 2 insertions, 1 deletions

diff --git a/net/core/filter.c b/net/core/filter.c
index 0ca6907d7efe..3095f1ba7015 100644
--- a/net/core/filter.c
+++ b/net/core/filter.c
@@ -2779,7 +2779,8 @@ static int bpf_skb_net_shrink(struct sk_buff *skb, u32 len_diff)
 
 static u32 __bpf_skb_max_len(const struct sk_buff *skb)
 {
-        return skb->dev->mtu + skb->dev->hard_header_len;
+        return skb->dev ? skb->dev->mtu + skb->dev->hard_header_len :
+                          SKB_MAX_ALLOC;
 }
 
 static int bpf_skb_adjust_net(struct sk_buff *skb, s32 len_diff)