------------[ cut here ]------------
WARNING: CPU: 0 PID: 9 at net/mac80211/mlme.c:1129 ieee80211_determine_chan_mode net/mac80211/mlme.c:1129 [inline]
WARNING: CPU: 0 PID: 9 at net/mac80211/mlme.c:1129 ieee80211_prep_channel+0x49d2/0x6130 net/mac80211/mlme.c:6059
Modules linked in:
CPU: 0 UID: 0 PID: 9 Comm: kworker/0:0 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:1129 [inline]
RIP: 0010:ieee80211_prep_channel+0x49d2/0x6130 net/mac80211/mlme.c:6059
Code: 48 c1 e8 03 42 80 3c 20 00 74 08 48 89 df e8 55 93 4f f7 48 83 3b 00 0f 84 96 04 00 00 e8 76 54 e8 f6 eb 3c e8 6f 54 e8 f6 90 <0f> 0b 90 e9 26 01 00 00 e8 61 54 e8 f6 c6 05 5b 3d 8f 04 01 48 c7
RSP: 0018:ffffc900001b6b00 EFLAGS: 00010293
RAX: ffffffff8ad7bf21 RBX: 0000000000000000 RCX: ffff88801beac900
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc900001b6ee0 R08: ffff88801beac900 R09: 000000000000000e
R10: 000000000000000d R11: 0000000000000000 R12: dffffc0000000000
R13: 1ffff1100a46f501 R14: ffffc900001b6db0 R15: ffff88805237a808
FS:  0000000000000000(0000) GS:ffff88808d733000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00002000000015c0 CR3: 0000000042c11000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 ieee80211_prep_connection+0xdd9/0x13f0 net/mac80211/mlme.c:9030
 ieee80211_mgd_auth+0xee6/0x1770 net/mac80211/mlme.c:9320
 rdev_auth net/wireless/rdev-ops.h:486 [inline]
 cfg80211_mlme_auth+0x632/0x9c0 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:3263 [inline]
 process_scheduled_works+0xae1/0x17b0 kernel/workqueue.c:3346
 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3427
 kthread+0x711/0x8a0 kernel/kthread.c:463
 ret_from_fork+0x4bc/0x870 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>