diff --git a/net/core/filter.c b/net/core/filter.c index 8102f8ddc97495aab2ad4efc2d96d173dd259b30..8c7fa0025341327d6b702ea4986c5041a971d2d0 100644 --- a/net/core/filter.c +++ b/net/core/filter.c @@ -2127,6 +2127,10 @@ static int __bpf_redirect_no_mac(struct sk_buff *skb, struct net_device *dev, if (mlen) { __skb_pull(skb, mlen); + if (unlikely(!skb->len)) { + kfree_skb(skb); + return -ERANGE; + } /* At ingress, the mac header has already been pulled once. * At egress, skb_pospull_rcsum has to be done in case that