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authorJulian Anastasov <ja@ssi.bg>2017-02-26 15:50:52 +0200
committerDavid S. Miller <davem@davemloft.net>2017-02-26 11:03:38 -0500
commit8bcfd0925ef15f072ba1e7bee2c25e9e1b5fd6ca (patch)
treef3390a0540238f4d5168ae4883deb73026182848 /net/ipv4/route.c
parent8118b7b76c8c087055054884a39db6a7d138e1c5 (diff)
downloadlinux-8bcfd0925ef15f072ba1e7bee2c25e9e1b5fd6ca.tar.bz2
ipv4: add missing initialization for flowi4_uid
Avoid matching of random stack value for uid when rules are looked up on input route or when RP filter is used. Problem should affect only setups that use ip rules with uid range. Fixes: 622ec2c9d524 ("net: core: add UID to flows, rules, and routes") Signed-off-by: Julian Anastasov <ja@ssi.bg> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/route.c')
-rw-r--r--net/ipv4/route.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index cb494a5050f7..584ed667bfa4 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -1876,6 +1876,7 @@ static int ip_route_input_slow(struct sk_buff *skb, __be32 daddr, __be32 saddr,
fl4.flowi4_flags = 0;
fl4.daddr = daddr;
fl4.saddr = saddr;
+ fl4.flowi4_uid = sock_net_uid(net, NULL);
err = fib_lookup(net, &fl4, &res, 0);
if (err != 0) {
if (!IN_DEV_FORWARD(in_dev))