diff options
| author | Tobias Waldekranz <tobias@waldekranz.com> | 2022-03-22 14:30:01 +0100 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2022-03-23 10:32:44 -0700 |
| commit | a911ad18a56aeecf87a098ad1cdc4de91d7f60de (patch) | |
| tree | 62e869b5ff3256e93d77a60aab2fc28c38158bec /net/bridge | |
| parent | 4a6806cfcbca2cd7bae94b2d4244dab3aaa1b333 (diff) | |
net: bridge: mst: Restrict info size queries to bridge ports
Ensure that no bridge masters are ever considered for MST info
dumping. MST states are only supported on bridge ports, not bridge
masters - which br_mst_info_size relies on.
Fixes: 122c29486e1f ("net: bridge: mst: Support setting and reporting MST port states")
Signed-off-by: Tobias Waldekranz <tobias@waldekranz.com>
Link: https://lore.kernel.org/r/20220322133001.16181-1-tobias@waldekranz.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net/bridge')
| -rw-r--r-- | net/bridge/br_netlink.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/bridge/br_netlink.c b/net/bridge/br_netlink.c index 204472449ec9..200ad05b296f 100644 --- a/net/bridge/br_netlink.c +++ b/net/bridge/br_netlink.c @@ -119,7 +119,7 @@ static size_t br_get_link_af_size_filtered(const struct net_device *dev, /* Each VLAN is returned in bridge_vlan_info along with flags */ vinfo_sz += num_vlan_infos * nla_total_size(sizeof(struct bridge_vlan_info)); - if (vg && (filter_mask & RTEXT_FILTER_MST)) + if (p && vg && (filter_mask & RTEXT_FILTER_MST)) vinfo_sz += br_mst_info_size(vg); if (!(filter_mask & RTEXT_FILTER_CFM_STATUS)) |