Merge tag 'for-5.11/dm-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git...

[linux-2.6-microblaze.git] / net / sched / act_mpls.c

diff --git a/net/sched/act_mpls.c b/net/sched/act_mpls.c
index 5c7456e..d1486ea 100644 (file)
--- a/net/sched/act_mpls.c
+++ b/net/sched/act_mpls.c
@@ -105,6 +105,9 @@ static int tcf_mpls_act(struct sk_buff *skb, const struct tc_action *a,
                        goto drop;
                break;
        case TCA_MPLS_ACT_MODIFY:
+               if (!pskb_may_pull(skb,
+                                  skb_network_offset(skb) + MPLS_HLEN))
+                       goto drop;
                new_lse = tcf_mpls_get_lse(mpls_hdr(skb), p, false);
                if (skb_mpls_update_lse(skb, new_lse))
                        goto drop;