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-rw-r--r--net/ipv4/udp_diag.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/net/ipv4/udp_diag.c b/net/ipv4/udp_diag.c
index d9ad986c7b2c..5cbb9be05295 100644
--- a/net/ipv4/udp_diag.c
+++ b/net/ipv4/udp_diag.c
@@ -42,6 +42,7 @@ static int udp_dump_one(struct udp_table *tbl, struct sk_buff *in_skb,
rcu_read_lock();
if (req->sdiag_family == AF_INET)
+ /* src and dst are swapped for historical reasons */
sk = __udp4_lib_lookup(net,
req->id.idiag_src[0], req->id.idiag_sport,
req->id.idiag_dst[0], req->id.idiag_dport,