Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

[platform/kernel/linux-starfive.git] / net / xfrm / xfrm_device.c

diff --git a/net/xfrm/xfrm_device.c b/net/xfrm/xfrm_device.c
index 5f5aafd..21269e8 100644 (file)
--- a/net/xfrm/xfrm_device.c
+++ b/net/xfrm/xfrm_device.c
@@ -97,6 +97,18 @@ static void xfrm_outer_mode_prep(struct xfrm_state *x, struct sk_buff *skb)
        }
 }
 
+static inline bool xmit_xfrm_check_overflow(struct sk_buff *skb)
+{
+       struct xfrm_offload *xo = xfrm_offload(skb);
+       __u32 seq = xo->seq.low;
+
+       seq += skb_shinfo(skb)->gso_segs;
+       if (unlikely(seq < xo->seq.low))
+               return true;
+
+       return false;
+}
+
 struct sk_buff *validate_xmit_xfrm(struct sk_buff *skb, netdev_features_t features, bool *again)
 {
        int err;
@@ -134,7 +146,8 @@ struct sk_buff *validate_xmit_xfrm(struct sk_buff *skb, netdev_features_t featur
                return skb;
        }
 
-       if (skb_is_gso(skb) && unlikely(x->xso.dev != dev)) {
+       if (skb_is_gso(skb) && (unlikely(x->xso.dev != dev) ||
+                               unlikely(xmit_xfrm_check_overflow(skb)))) {
                struct sk_buff *segs;
 
                /* Packet got rerouted, fixup features and segment it. */