------------[ cut here ]------------
WARNING: CPU: 3 PID: 75 at net/mac80211/offchannel.c:404 ieee80211_start_next_roc+0x24c/0x2c0 net/mac80211/offchannel.c:404
Modules linked in:
CPU: 3 UID: 0 PID: 75 Comm: kworker/u32:4 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_unbound cfg80211_wiphy_work
RIP: 0010:ieee80211_start_next_roc+0x24c/0x2c0 net/mac80211/offchannel.c:404
Code: 7b 48 e8 c7 14 db ff 48 83 c4 10 5b 5d e9 dc 12 e5 f6 e8 d7 12 e5 f6 48 89 df e8 ef 5e ff ff e9 40 ff ff ff e8 c5 12 e5 f6 90 <0f> 0b 90 e9 32 ff ff ff 48 c7 c7 54 44 83 90 e8 d0 9e 4d f7 e9 db
RSP: 0018:ffffc9000164fa50 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffff888051ab0e80 RCX: ffffffff8ad83626
RDX: ffff8880226c2480 RSI: ffffffff8ad8375b RDI: 0000000000000001
RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000001
R13: ffff888051ab2910 R14: ffff888051ab0e80 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8880d6cd8000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c0073a4000 CR3: 0000000032e77000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 __ieee80211_scan_completed+0x4fb/0xe40 net/mac80211/scan.c:528
 ieee80211_scan_work+0x3f1/0x2080 net/mac80211/scan.c:1184
 cfg80211_wiphy_work+0x2c7/0x580 net/wireless/core.c:435
 process_one_work+0x9cf/0x1b70 kernel/workqueue.c:3263
 process_scheduled_works kernel/workqueue.c:3346 [inline]
 worker_thread+0x6c8/0xf10 kernel/workqueue.c:3427
 kthread+0x3c5/0x780 kernel/kthread.c:463
 ret_from_fork+0x675/0x7d0 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>