diff mbox series

[3/5] gtp: really check namespaces before xmit

Message ID 20201202123345.565657-3-jonas@norrbonn.se
State Not Applicable
Headers show
Series [1/5] gtp: set initial MTU | expand

Commit Message

Jonas Bonn Dec. 2, 2020, 12:33 p.m. UTC 
Blindly assuming that packet transmission crosses namespaces results in
skb marks being lost in the single namespace case.

Signed-off-by: Jonas Bonn <jonas@norrbonn.se>
---
 drivers/net/gtp.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/net/gtp.c b/drivers/net/gtp.c
index 096aaf1c867e..e053f86f43f3 100644
--- a/drivers/net/gtp.c
+++ b/drivers/net/gtp.c
@@ -592,7 +592,9 @@  static netdev_tx_t gtp_dev_xmit(struct sk_buff *skb, struct net_device *dev)
 				    ip4_dst_hoplimit(&pktinfo.rt->dst),
 				    0,
 				    pktinfo.gtph_port, pktinfo.gtph_port,
-				    true, false);
+				    !net_eq(sock_net(pktinfo.pctx->sk),
+					    dev_net(dev)),
+				    false);
 		break;
 	}