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| author |   Sabrina Dubroca <sd@queasysnail.net> | 2016-11-15 11:16:35 +0100 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2016-11-15 22:40:07 -0500 |
| commit | b3cfaa31e3851c743d3f9d3441710f7ff6f7e868 (patch) | |
| tree | 7ca9875d19d7f4f010c020ca053252f88e8e014a /net/core/rtnetlink.c | |
| parent | rtnetlink: fix rtnl_vfinfo_size (diff) | |
| download | linux-dev-b3cfaa31e3851c743d3f9d3441710f7ff6f7e868.tar.xz linux-dev-b3cfaa31e3851c743d3f9d3441710f7ff6f7e868.zip | |
rtnetlink: fix rtnl message size computation for XDP
rtnl_xdp_size() only considers the size of the actual payload attribute,
and misses the space taken by the attribute used for nesting (IFLA_XDP).
Fixes: d1fdd9138682 ("rtnl: add option for setting link xdp prog")
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Reviewed-by: Brenden Blanco <bblanco@plumgrid.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/core/rtnetlink.c')
| -rw-r--r-- | net/core/rtnetlink.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c index 96f4bf274e30..a6529c55ffb7 100644 --- a/net/core/rtnetlink.c +++ b/net/core/rtnetlink.c @@ -901,7 +901,8 @@ static size_t rtnl_port_size(const struct net_device *dev, static size_t rtnl_xdp_size(const struct net_device *dev) { - size_t xdp_size = nla_total_size(1); /* XDP_ATTACHED */ + size_t xdp_size = nla_total_size(0) + /* nest IFLA_XDP */ + nla_total_size(1); /* XDP_ATTACHED */ if (!dev->netdev_ops->ndo_xdp) return 0; |