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authorXin Long <lucien.xin@gmail.com>2020-03-30 23:31:45 +0800
committerDavid S. Miller <davem@davemloft.net>2020-03-30 10:35:03 -0700
commitbde1b56f898ca8112912d7b36e55e1543b3be0cf (patch)
tree59ef2dbecd151c6d2dce99f79834de1315868ad6 /net
parent25629fdaff2ff509dd0b3f5ff93d70a75e79e0a1 (diff)
downloadlinux-bde1b56f898ca8112912d7b36e55e1543b3be0cf.tar.gz
udp: initialize is_flist with 0 in udp_gro_receive
Without NAPI_GRO_CB(skb)->is_flist initialized, when the dev doesn't
support NETIF_F_GRO_FRAGLIST, is_flist can still be set and fraglist
will be used in udp_gro_receive().

So fix it by initializing is_flist with 0 in udp_gro_receive.

Fixes: 9fd1ff5d2ac7 ("udp: Support UDP fraglist GRO/GSO.")
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
-rw-r--r--net/ipv4/udp_offload.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/net/ipv4/udp_offload.c b/net/ipv4/udp_offload.c
index 1a98583a79f4..e67a66fbf27b 100644
--- a/net/ipv4/udp_offload.c
+++ b/net/ipv4/udp_offload.c
@@ -453,6 +453,7 @@ struct sk_buff *udp_gro_receive(struct list_head *head, struct sk_buff *skb,
 	unsigned int off = skb_gro_offset(skb);
 	int flush = 1;
 
+	NAPI_GRO_CB(skb)->is_flist = 0;
 	if (skb->dev->features & NETIF_F_GRO_FRAGLIST)
 		NAPI_GRO_CB(skb)->is_flist = sk ? !udp_sk(sk)->gro_enabled: 1;