WARNING in __cfg80211_ibss

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WARNING in __cfg80211_ibss_joined	0 (1)	2020/02/13 17:04

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2020/02/13 17:04

Kernel	Title	Rank 🛈	Repro	Cause bisect	Fix bisect	Count	Last	Reported	Patched	Status
linux-6.6	WARNING in __cfg80211_ibss_joined	-1	syz			156	8h42m	404d	0/2	upstream: reported syz repro on 2025/06/19 03:38
linux-4.14	WARNING in __cfg80211_ibss_joined	-1	C			12	1255d	2133d	0/1	upstream: reported C repro on 2020/09/24 13:20
linux-5.15	WARNING in __cfg80211_ibss_joined missing-backport origin:upstream	-1	C			256	15h14m	1237d	0/3	upstream: reported C repro on 2023/03/08 19:50
linux-6.1	WARNING in __cfg80211_ibss_joined origin:upstream missing-backport	-1	C		inconclusive	371	2h20m	1228d	0/3	upstream: reported C repro on 2023/03/18 13:26
upstream	WARNING in __cfg80211_ibss_joined (2) prio:high wireless	-1	C	error		6975	4h19m	2133d	0/29	upstream: reported C repro on 2020/09/24 09:26
linux-4.19	WARNING in __cfg80211_ibss_joined	-1	C			236	1247d	2094d	0/1	upstream: reported C repro on 2020/11/01 17:19

------------[ cut here ]------------ WARNING: CPU: 1 PID: 159 at net/wireless/ibss.c:36 __cfg80211_ibss_joined+0x509/0x5b0 net/wireless/ibss.c:36 Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 159 Comm: kworker/u4:3 Not tainted 5.6.0-rc1-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: cfg80211 cfg80211_event_work Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x197/0x210 lib/dump_stack.c:118 panic+0x2e3/0x75c kernel/panic.c:221 __warn.cold+0x2f/0x3e kernel/panic.c:582 report_bug+0x289/0x300 lib/bug.c:195 fixup_bug arch/x86/kernel/traps.c:174 [inline] fixup_bug arch/x86/kernel/traps.c:169 [inline] do_error_trap+0x11b/0x200 arch/x86/kernel/traps.c:267 do_invalid_op+0x37/0x50 arch/x86/kernel/traps.c:286 invalid_op+0x23/0x30 arch/x86/entry/entry_64.S:1027 RIP: 0010:__cfg80211_ibss_joined+0x509/0x5b0 net/wireless/ibss.c:36 Code: 0f 0b e9 f3 fd ff ff e8 95 a8 3c fa e9 dc fb ff ff e8 4b a8 3c fa e9 18 fc ff ff e8 81 a8 3c fa e9 08 ff ff ff e8 a7 03 fe f9 <0f> 0b e9 19 fc ff ff e8 9b 03 fe f9 0f 0b e8 84 a8 3c fa e9 7e fb RSP: 0018:ffffc900015e7bb0 EFLAGS: 00010293 RAX: ffff8880a93c4180 RBX: ffff88805d7e0b90 RCX: 0000000000000006 RDX: 0000000000000000 RSI: ffffffff87778a69 RDI: ffff8880a93c4a14 RBP: ffffc900015e7c60 R08: 1ffffffff16a3377 R09: fffffbfff16a3378 R10: fffffbfff16a3377 R11: ffffffff8b519bbf R12: ffff88805d7e0000 R13: 1ffff920002bcf7a R14: ffff888057b68418 R15: 0000000000000000 cfg80211_process_wdev_events+0x3fe/0x5b0 net/wireless/util.c:885 cfg80211_process_rdev_events+0x75/0x100 net/wireless/util.c:911 cfg80211_event_work+0x1e/0x30 net/wireless/core.c:320 process_one_work+0xa05/0x17a0 kernel/workqueue.c:2264 worker_thread+0x98/0xe40 kernel/workqueue.c:2410 kthread+0x361/0x430 kernel/kthread.c:255 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:352 Kernel Offset: disabled Rebooting in 86400 seconds..

Time	Kernel	Commit	Syzkaller	Config	Log	Report	Manager
2020/02/22 10:00	bpf	41f57cfde186	2ffa6679	.config	console log	report	ci-upstream-bpf-kasan-gce
2020/03/04 02:21	bpf-next	80a836c2506b	c88c7b75	.config	console log	report	ci-upstream-bpf-next-kasan-gce
2020/03/03 19:20	bpf-next	80a836c2506b	c88c7b75	.config	console log	report	ci-upstream-bpf-next-kasan-gce
2020/03/02 19:58	bpf-next	80a836c2506b	c88c7b75	.config	console log	report	ci-upstream-bpf-next-kasan-gce
2020/03/01 18:36	bpf-next	80a836c2506b	c88c7b75	.config	console log	report	ci-upstream-bpf-next-kasan-gce
2020/03/01 08:06	bpf-next	80a836c2506b	c88c7b75	.config	console log	report	ci-upstream-bpf-next-kasan-gce
2020/02/23 12:59	bpf-next	8eece07c011f	2c36e7a7	.config	console log	report	ci-upstream-bpf-next-kasan-gce
2020/02/13 08:42	bpf-next	fdfa3a6778b1	84f4fc8a	.config	console log	report	ci-upstream-bpf-next-kasan-gce