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-rw-r--r--net/ipv4/raw.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/net/ipv4/raw.c b/net/ipv4/raw.c
index 4032b818f3e4..659ddfb10947 100644
--- a/net/ipv4/raw.c
+++ b/net/ipv4/raw.c
@@ -216,6 +216,9 @@ static void raw_err(struct sock *sk, struct sk_buff *skb, u32 info)
int err = 0;
int harderr = 0;
+ if (type == ICMP_DEST_UNREACH && code == ICMP_FRAG_NEEDED)
+ ipv4_sk_update_pmtu(skb, sk, info);
+
/* Report error on raw socket, if:
1. User requested ip_recverr.
2. Socket is connected (otherwise the error indication