korg/linux
0
0
Fork 0
mirror of https://mirrors.bfsu.edu.cn/git/linux.git synced 2024-11-25 13:14:07 +08:00
Code Issues Packages Projects Releases Wiki Activity

wifi: mac80211: accept STA changes without link changes

Browse Source 
If there's no link ID, then check that there are no changes to
the link, and if so accept them, unless a new link is created.
While at it, reject creating a new link without an address.

This fixes authorizing an MLD (peer) that has no link 0.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Johannes Berg 2022-07-23 22:08:49 +02:00
parent 7dad3e39fd
commit b303835dab
1 changed files with 14 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
net/mac80211/cfg.c
View File

@ -1610,6 +1610,18 @@ static int sta_link_apply_parameters(struct ieee80211_local *local,
rcu_dereference_protected(sta->link[link_id],
lockdep_is_held(&local->sta_mtx));
/*
* If there are no changes, then accept a link that doesn't exist,
* unless it's a new link.
*/
if (params->link_id < 0 && !new_link &&
!params->link_mac && !params->txpwr_set &&
!params->supported_rates_len &&
!params->ht_capa && !params->vht_capa &&
!params->he_capa && !params->eht_capa &&
!params->opmode_notif_used)
return 0;
if (!link || !link_sta)
return -EINVAL;
@ -1625,6 +1637,8 @@ static int sta_link_apply_parameters(struct ieee80211_local *local,
params->link_mac)) {
return -EINVAL;
}
} else if (new_link) {
return -EINVAL;
}
if (params->txpwr_set) {