From 736ef37fd9a44f5966e25319d08ff7ea99ac79e8 Mon Sep 17 00:00:00 2001 From: Coco Li Date: Thu, 23 Dec 2021 22:24:40 +0000 Subject: udp: using datalen to cap ipv6 udp max gso segments The max number of UDP gso segments is intended to cap to UDP_MAX_SEGMENTS, this is checked in udp_send_skb(). skb->len contains network and transport header len here, we should use only data len instead. This is the ipv6 counterpart to the below referenced commit, which missed the ipv6 change Fixes: 158390e45612 ("udp: using datalen to cap max gso segments") Signed-off-by: Coco Li Reviewed-by: Willem de Bruijn Link: https://lore.kernel.org/r/20211223222441.2975883-1-lixiaoyan@google.com Signed-off-by: Jakub Kicinski --- net/ipv6/udp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'net/ipv6/udp.c') diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c index a2caca6ccf11..8cde9efd7919 100644 --- a/net/ipv6/udp.c +++ b/net/ipv6/udp.c @@ -1204,7 +1204,7 @@ static int udp_v6_send_skb(struct sk_buff *skb, struct flowi6 *fl6, kfree_skb(skb); return -EINVAL; } - if (skb->len > cork->gso_size * UDP_MAX_SEGMENTS) { + if (datalen > cork->gso_size * UDP_MAX_SEGMENTS) { kfree_skb(skb); return -EINVAL; } -- cgit v1.2.3-58-ga151