WARNING: CPU: NUM PID: NUM at net/wireless/ibss.c:LINE __cfg80211_ibss

WARNING: CPU: NUM PID: NUM at net/wireless/ibss.c:LINE __cfg80211_ibss_join

Status: upstream: reported C repro on 2022/08/09 05:40
Subsystems: wireless
[Documentation on labels]
Reported-by: syzbot+af9c72450de65fd26129@syzkaller.appspotmail.com
First crash: 482d, last: 31d

Cause bisection: the issue happens on the oldest tested release (bisect log)
Crash: WARNING in __cfg80211_ibss_joined (log)
Repro: C syz .config

▶ ▼ Discussions (1)

Title	Replies (including bot)	Last reply
[syzbot] WARNING: CPU: NUM PID: NUM at net/wireless/ibss.c:LINE __cfg80211_ibss_join	0 (1)	2022/08/09 05:40

▶ ▼ Last patch testing requests (1)


Created	Duration	User	Patch	Repo	Result
2023/09/25 13:15	15m	retest repro		upstream	report log

▶ ▼ Fix bisection attempts (9)


Created	Duration	User	Repo	Result
2023/10/29 20:33	1h43m	bisect fix	upstream	job log (0) log
2023/09/28 08:38	2h33m	bisect fix	upstream	job log (0) log
2023/07/17 10:31	2h13m	bisect fix	upstream	job log (0) log
2023/06/02 20:43	21m	bisect fix	upstream	job log (0) log
2023/05/03 14:39	20m	bisect fix	upstream	job log (0) log
2023/04/02 13:02	25m	bisect fix	upstream	job log (0) log
2023/03/03 06:48	36m	bisect fix	upstream	job log (0) log
2023/01/31 13:23	22m	bisect fix	upstream	job log (0) log
2022/10/12 17:45	21m (2)	bisect fix	upstream	job log (0) log

Sample crash report:

wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50
------------[ cut here ]------------
WARNING: CPU: 0 PID: 46 at net/wireless/ibss.c:37 __cfg80211_ibss_join

Crashes (1):
Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	C repro	VM info	Assets (help?)	Manager	Title
2022/08/05 05:31	upstream	200e340f2196	1c9013ac	.config	console log	report	syz	C			ci-upstream-kasan-gce-root	WARNING: CPU: NUM PID: NUM at net/wireless/ibss.c:LINE __cfg80211_ibss_join

* ~~Struck through~~ repros no longer work on HEAD.