syzbot

------------[ cut here ]------------
!list_empty(&bss->hidden_list)
WARNING: net/wireless/scan.c:1787 at cfg80211_combine_bsses net/wireless/scan.c:1787 [inline], CPU#1: ksoftirqd/1/30
WARNING: net/wireless/scan.c:1787 at __cfg80211_bss_update+0x1a7f/0x2110 net/wireless/scan.c:2034, CPU#1: ksoftirqd/1/30
Modules linked in:
CPU: 1 UID: 0 PID: 30 Comm: ksoftirqd/1 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
RIP: 0010:cfg80211_combine_bsses net/wireless/scan.c:1787 [inline]
RIP: 0010:__cfg80211_bss_update+0x1a7f/0x2110 net/wireless/scan.c:2034
Code: f7 4d 89 37 e9 f1 fb ff ff e8 cd 37 4d f7 90 0f 0b 90 48 bd 00 00 00 00 00 fc ff df e9 d9 fb ff ff 4c 89 ac 24 90 00 00 00 90 <0f> 0b 90 48 8b 3c 24 e8 d5 33 34 fa 84 c0 0f 84 18 01 00 00 e8 98
RSP: 0018:ffffc90000a4ef50 EFLAGS: 00010287
RAX: ffff88803d9b4c10 RBX: ffff88803d9b6c00 RCX: ffff88803d9b5010
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000006
RBP: 1ffff11007b36a02 R08: 0000000000000000 R09: 0000000000000100
R10: 0000000000000000 R11: 0000000000000000 R12: ffff88803d9b5000
R13: 0000000000000000 R14: ffff88803d9b6c68 R15: ffff88803d9b6c10
FS:  0000000000000000(0000) GS:ffff8881261fb000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fb34ef2da40 CR3: 0000000042af4000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 cfg80211_inform_single_bss_data+0xbd8/0x1b80 net/wireless/scan.c:2368
 cfg80211_inform_bss_data+0x266/0x3c40 net/wireless/scan.c:3226
 cfg80211_inform_bss_frame_data+0x3c7/0x730 net/wireless/scan.c:3317
 ieee80211_bss_info_update+0x794/0xa40 net/mac80211/scan.c:230
 ieee80211_scan_rx+0x552/0xa40 net/mac80211/scan.c:364
 __ieee80211_rx_handle_packet net/mac80211/rx.c:5353 [inline]
 ieee80211_rx_list+0x2a02/0x3760 net/mac80211/rx.c:5636
 ieee80211_rx_napi+0x1b1/0x3e0 net/mac80211/rx.c:5659
 ieee80211_rx include/net/mac80211.h:5395 [inline]
 ieee80211_handle_queued_frames+0xe8/0x1e0 net/mac80211/main.c:452
 tasklet_action_common+0x2bf/0x540 kernel/softirq.c:938
 handle_softirqs+0x1de/0x6d0 kernel/softirq.c:622
 run_ksoftirqd+0x52/0x180 kernel/softirq.c:1076
 smpboot_thread_fn+0x541/0xa50 kernel/smpboot.c:160
 kthread+0x388/0x470 kernel/kthread.c:436
 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>