diff --git a/net/core/filter.c b/net/core/filter.c index 4bcf939342411424a0e320beef6cea218f67dca1..012a5070a9e578b1f39153fc941f2692ba339c01 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