------------[ cut here ]------------
WARNING: CPU: 1 PID: 28 at net/wireless/scan.c:1788 cfg80211_combine_bsses net/wireless/scan.c:1788 [inline]
WARNING: CPU: 1 PID: 28 at net/wireless/scan.c:1788 __cfg80211_bss_update+0x1cf3/0x23c0 net/wireless/scan.c:2035
Modules linked in:
CPU: 1 UID: 0 PID: 28 Comm: ksoftirqd/1 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
RIP: 0010:cfg80211_combine_bsses net/wireless/scan.c:1788 [inline]
RIP: 0010:__cfg80211_bss_update+0x1cf3/0x23c0 net/wireless/scan.c:2035
Code: 98 0b f7 48 8d 7b 98 e8 5b 5b ff ff e9 56 f2 ff ff e8 b1 98 0b f7 48 8d 7b 98 e8 48 5b ff ff e9 b4 f2 ff ff e8 9e 98 0b f7 90 <0f> 0b 90 48 8b 7c 24 40 e8 d0 13 fb f9 31 ff 89 c6 88 44 24 60 e8
RSP: 0018:ffffc90000677288 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000000002 RCX: ffffffff8ab1472e
RDX: ffff88801decc900 RSI: ffffffff8ab15032 RDI: 0000000000000005
RBP: ffff888107d08c68 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffff888026590190
R13: ffff888107d08c00 R14: ffff888107301800 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8880d6b06000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000001207 CR3: 000000003b47c000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 cfg80211_inform_single_bss_data+0x7ba/0x1df0 net/wireless/scan.c:2381
 cfg80211_inform_bss_data+0x22b/0x3be0 net/wireless/scan.c:3240
 cfg80211_inform_bss_frame_data+0x26f/0x750 net/wireless/scan.c:3331
 ieee80211_bss_info_update+0x310/0xab0 net/mac80211/scan.c:226
 ieee80211_scan_rx+0x4cf/0xb30 net/mac80211/scan.c:355
 __ieee80211_rx_handle_packet net/mac80211/rx.c:5194 [inline]
 ieee80211_rx_list+0x1b9b/0x2ab0 net/mac80211/rx.c:5447
 ieee80211_rx_napi+0xdc/0x410 net/mac80211/rx.c:5470
 ieee80211_rx include/net/mac80211.h:5214 [inline]
 ieee80211_handle_queued_frames+0xd5/0x130 net/mac80211/main.c:453
 tasklet_action_common+0x284/0x400 kernel/softirq.c:925
 handle_softirqs+0x219/0x8e0 kernel/softirq.c:622
 run_ksoftirqd kernel/softirq.c:1063 [inline]
 run_ksoftirqd+0x3a/0x60 kernel/softirq.c:1055
 smpboot_thread_fn+0x3f7/0xae0 kernel/smpboot.c:160
 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>