------------[ cut here ]------------
WARNING: CPU: 0 PID: 5348 at net/mac80211/mlme.c:1120 ieee80211_determine_chan_mode net/mac80211/mlme.c:1120 [inline]
WARNING: CPU: 0 PID: 5348 at net/mac80211/mlme.c:1120 ieee80211_prep_channel+0x479f/0x5ee0 net/mac80211/mlme.c:6042
Modules linked in:
CPU: 0 UID: 0 PID: 5348 Comm: kworker/0:4 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Workqueue: events cfg80211_conn_work
RIP: 0010:ieee80211_determine_chan_mode net/mac80211/mlme.c:1120 [inline]
RIP: 0010:ieee80211_prep_channel+0x479f/0x5ee0 net/mac80211/mlme.c:6042
Code: 03 42 80 3c 20 00 74 08 48 89 df e8 4b 02 1a f7 48 83 3b 00 0f 84 79 04 00 00 e8 9c 17 b5 f6 e9 7e 01 00 00 e8 92 17 b5 f6 90 <0f> 0b 90 4c 8b 74 24 70 4c 89 f7 e8 d1 00 0f f7 49 c7 c6 ea ff ff
RSP: 0018:ffffc9000d21eb40 EFLAGS: 00010293
RAX: ffffffff8b0aa39e RBX: 0000000000000000 RCX: ffff888000892440
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc9000d21ef00 R08: ffff888000892440 R09: 000000000000000e
R10: 000000000000000d R11: 0000000000000000 R12: dffffc0000000000
R13: 1ffff1100a5deceb R14: ffffc9000d21edf0 R15: ffff888052ef6758
FS:  0000000000000000(0000) GS:ffff88808d210000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055ad310e4660 CR3: 0000000051660000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 ieee80211_prep_connection+0xdd9/0x13f0 net/mac80211/mlme.c:8977
 ieee80211_mgd_auth+0xee3/0x1770 net/mac80211/mlme.c:9267
 rdev_auth net/wireless/rdev-ops.h:486 [inline]
 cfg80211_mlme_auth+0x62f/0x9c0 net/wireless/mlme.c:291
 cfg80211_conn_do_work+0x501/0xd10 net/wireless/sme.c:182
 cfg80211_conn_work+0x2c0/0x460 net/wireless/sme.c:272
 process_one_work kernel/workqueue.c:3236 [inline]
 process_scheduled_works+0xae1/0x17b0 kernel/workqueue.c:3319
 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3400
 kthread+0x70e/0x8a0 kernel/kthread.c:463
 ret_from_fork+0x3f9/0x770 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>