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-rw-r--r--net/ipv4/fib_frontend.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/net/ipv4/fib_frontend.c b/net/ipv4/fib_frontend.c
index 4d61ddd8a0ec..85117b45216d 100644
--- a/net/ipv4/fib_frontend.c
+++ b/net/ipv4/fib_frontend.c
@@ -436,6 +436,9 @@ int fib_validate_source(struct sk_buff *skb, __be32 src, __be32 dst,
if (net->ipv4.fib_has_custom_local_routes ||
fib4_has_custom_rules(net))
goto full_check;
+ /* Within the same container, it is regarded as a martian source,
+ * and the same host but different containers are not.
+ */
if (inet_lookup_ifaddr_rcu(net, src))
return -EINVAL;