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wifi: nl80211: check link is beaconing for color change

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When trying to do a color change, validate that the link is
beaconing first, to avoid calling the driver with an invalid
link.

Reviewed-by: Miriam Rachel Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20260415145348.beb59ea5fbf7.I128a956a3e610bb6a5c9cad941d7d5b59b735a5e@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Johannes Berg
2026-04-15 14:53:48 +02:00
parent 16a346ce2e
commit 55308cee9c
1 changed files with 4 additions and 1 deletions
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5
net/wireless/nl80211.c
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@@ -18388,6 +18388,10 @@ static int nl80211_color_change(struct sk_buff *skb, struct genl_info *info)
params.count = nla_get_u8(info->attrs[NL80211_ATTR_COLOR_CHANGE_COUNT]);
params.color = nla_get_u8(info->attrs[NL80211_ATTR_COLOR_CHANGE_COLOR]);
params.link_id = nl80211_link_id(info->attrs);
if (!wdev->links[params.link_id].ap.beacon_interval)
return -EINVAL;
err = nl80211_parse_beacon(rdev, info->attrs, &params.beacon_next,
wdev->links[params.link_id].ap.chandef.chan,
info->extack);
@@ -18463,7 +18467,6 @@ static int nl80211_color_change(struct sk_buff *skb, struct genl_info *info)
goto out;
}
params.link_id = nl80211_link_id(info->attrs);
err = rdev_color_change(rdev, dev, &params);
out: