From: Girish Moodalbail Date: Wed, 9 Aug 2017 00:26:24 +0000 (-0700) Subject: geneve: maximum value of VNI cannot be used X-Git-Tag: v5.15~10693^2~4 X-Git-Url: https://git.proxmox.com/?a=commitdiff_plain;h=04db70d9fe7019d96118158fbaaccb4959ba2bd4;p=mirror_ubuntu-kernels.git geneve: maximum value of VNI cannot be used Geneve's Virtual Network Identifier (VNI) is 24 bit long, so the range of values for it would be from 0 to 16777215 (2^24 -1). However, one cannot create a geneve device with VNI set to 16777215. This patch fixes this issue. Signed-off-by: Girish Moodalbail Signed-off-by: David S. Miller --- diff --git a/drivers/net/geneve.c b/drivers/net/geneve.c index de8156c6b292..2bbda71818ad 100644 --- a/drivers/net/geneve.c +++ b/drivers/net/geneve.c @@ -1091,7 +1091,7 @@ static int geneve_validate(struct nlattr *tb[], struct nlattr *data[], if (data[IFLA_GENEVE_ID]) { __u32 vni = nla_get_u32(data[IFLA_GENEVE_ID]); - if (vni >= GENEVE_VID_MASK) + if (vni >= GENEVE_N_VID) return -ERANGE; }