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authorJakub Kicinski <kuba@kernel.org>2020-12-04 02:42:13 +0300
committerJakub Kicinski <kuba@kernel.org>2020-12-04 02:44:09 +0300
commit55fd59b003f6e8fd88cf16590e79823d7ccf3026 (patch)
treef23b2225f1a00b80632d612428708d5a57ad330b /drivers/net/geneve.c
parenta4390e966f952510808b10ce7ae2a7dd2a08c0e5 (diff)
parentbbe2ba04c5a92a49db8a42c850a5a2f6481e47eb (diff)
downloadlinux-55fd59b003f6e8fd88cf16590e79823d7ccf3026.tar.xz
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Conflicts: drivers/net/ethernet/ibm/ibmvnic.c Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers/net/geneve.c')
-rw-r--r--drivers/net/geneve.c20
1 files changed, 16 insertions, 4 deletions
diff --git a/drivers/net/geneve.c b/drivers/net/geneve.c
index 5523f069b9a5..627c33333866 100644
--- a/drivers/net/geneve.c
+++ b/drivers/net/geneve.c
@@ -258,11 +258,21 @@ static void geneve_rx(struct geneve_dev *geneve, struct geneve_sock *gs,
skb_dst_set(skb, &tun_dst->dst);
/* Ignore packet loops (and multicast echo) */
- if (ether_addr_equal(eth_hdr(skb)->h_source, geneve->dev->dev_addr)) {
- geneve->dev->stats.rx_errors++;
- goto drop;
- }
+ if (ether_addr_equal(eth_hdr(skb)->h_source, geneve->dev->dev_addr))
+ goto rx_error;
+ switch (skb_protocol(skb, true)) {
+ case htons(ETH_P_IP):
+ if (pskb_may_pull(skb, sizeof(struct iphdr)))
+ goto rx_error;
+ break;
+ case htons(ETH_P_IPV6):
+ if (pskb_may_pull(skb, sizeof(struct ipv6hdr)))
+ goto rx_error;
+ break;
+ default:
+ goto rx_error;
+ }
oiph = skb_network_header(skb);
skb_reset_network_header(skb);
@@ -299,6 +309,8 @@ static void geneve_rx(struct geneve_dev *geneve, struct geneve_sock *gs,
dev_sw_netstats_rx_add(geneve->dev, len);
return;
+rx_error:
+ geneve->dev->stats.rx_errors++;
drop:
/* Consume bad packet */
kfree_skb(skb);