Re: WARNING in ieee80211_ibss_csa_beacon
flat view
From: Siddh Raman Pant <hidden>
Date: 2022-08-10 11:36:25
Also in:
linux-wireless, lkml
When we are not connected to a channel, sending channel "switch" announcement doesn't make any sense. #syz test https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
--- a/net/mac80211/ibss.c
+++ b/net/mac80211/ibss.c@@ -530,6 +530,10 @@ int ieee80211_ibss_finish_csa(struct ieee80211_sub_if_data *sdata) sdata_assert_lock(sdata); + /* When not connected/joined, sending CSA doesn't make sense. */ + if (sdata->u.ibss.state != IEEE80211_IBSS_MLME_JOINED) + return -ENOLINK; + /* update cfg80211 bss information with the new channel */ if (!is_zero_ether_addr(ifibss->bssid)) { cbss = cfg80211_get_bss(sdata->local->hw.wiphy,
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2.35.1