This is a note to let you know that I've just added the patch titled
wifi: mac80211: apply mcast rate only if interface is up
to the 6.9-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
wifi-mac80211-apply-mcast-rate-only-if-interface-is-.patch
and it can be found in the queue-6.9 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 774067084cc423709b0abd9942ee39283dba0d78
Author: Johannes Berg <johannes.berg@xxxxxxxxx>
Date: Wed May 15 13:34:10 2024 +0200
wifi: mac80211: apply mcast rate only if interface is up
[ Upstream commit 02c665f048a439c0d58cc45334c94634bd7c18e6 ]
If the interface isn't enabled, don't apply multicast
rate changes immediately.
Reported-by: syzbot+de87c09cc7b964ea2e23@xxxxxxxxxxxxxxxxxxxxxxxxx
Link: https://msgid.link/20240515133410.d6cffe5756cc.I47b624a317e62bdb4609ff7fa79403c0c444d32d@changeid
Signed-off-by: Johannes Berg <johannes.berg@xxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 51dc2d9dd6b84..d0feadfdb46e1 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -2954,8 +2954,9 @@ static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev,
memcpy(sdata->vif.bss_conf.mcast_rate, rate,
sizeof(int) * NUM_NL80211_BANDS);
- ieee80211_link_info_change_notify(sdata, &sdata->deflink,
- BSS_CHANGED_MCAST_RATE);
+ if (ieee80211_sdata_running(sdata))
+ ieee80211_link_info_change_notify(sdata, &sdata->deflink,
+ BSS_CHANGED_MCAST_RATE);
return 0;
}
