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Commit 3a3ba4b7 authored by Xin Long's avatar Xin Long Committed by Greg Kroah-Hartman
Browse files

UPSTREAM: 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: default avatarXin Long <lucien.xin@gmail.com>
Acked-by: default avatarSteffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>

Bug: 167707933
Change-Id: Icd2977dfb7506ce0f83d88f52184aa282bc2cac3
(cherry picked from commit bde1b56f898ca8112912d7b36e55e1543b3be0cf)
Signed-off-by: default avatarHyunsoon Kim <h10.kim@samsung.com>
parent 88ca8b3f

net/ipv4/udp_offload.c

+1 −0
Original line number Diff line number Diff line
@@ -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;