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-rw-r--r--net/ipv4/fib_rules.c4
-rw-r--r--net/ipv4/netfilter/nft_masq_ipv4.c1
-rw-r--r--net/ipv4/tcp_input.c4
3 files changed, 7 insertions, 2 deletions
diff --git a/net/ipv4/fib_rules.c b/net/ipv4/fib_rules.c
index f2e15738534d..8f7bd56955b0 100644
--- a/net/ipv4/fib_rules.c
+++ b/net/ipv4/fib_rules.c
@@ -62,6 +62,10 @@ int __fib_lookup(struct net *net, struct flowi4 *flp, struct fib_result *res)
else
res->tclassid = 0;
#endif
+
+ if (err == -ESRCH)
+ err = -ENETUNREACH;
+
return err;
}
EXPORT_SYMBOL_GPL(__fib_lookup);
diff --git a/net/ipv4/netfilter/nft_masq_ipv4.c b/net/ipv4/netfilter/nft_masq_ipv4.c
index c1023c445920..665de06561cd 100644
--- a/net/ipv4/netfilter/nft_masq_ipv4.c
+++ b/net/ipv4/netfilter/nft_masq_ipv4.c
@@ -24,6 +24,7 @@ static void nft_masq_ipv4_eval(const struct nft_expr *expr,
struct nf_nat_range range;
unsigned int verdict;
+ memset(&range, 0, sizeof(range));
range.flags = priv->flags;
verdict = nf_nat_masquerade_ipv4(pkt->skb, pkt->ops->hooknum,
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index d91436ba17ea..d22a31f27ab4 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -5232,7 +5232,7 @@ slow_path:
if (len < (th->doff << 2) || tcp_checksum_complete_user(sk, skb))
goto csum_error;
- if (!th->ack && !th->rst)
+ if (!th->ack && !th->rst && !th->syn)
goto discard;
/*
@@ -5651,7 +5651,7 @@ int tcp_rcv_state_process(struct sock *sk, struct sk_buff *skb,
goto discard;
}
- if (!th->ack && !th->rst)
+ if (!th->ack && !th->rst && !th->syn)
goto discard;
if (!tcp_validate_incoming(sk, skb, th, 0))