------------[ cut here ]------------
!list_empty(&bss->hidden_list)
WARNING: net/wireless/scan.c:1788 at cfg80211_combine_bsses net/wireless/scan.c:1788 [inline], CPU#0: syz.0.16/6424
WARNING: net/wireless/scan.c:1788 at __cfg80211_bss_update+0x1a7f/0x2110 net/wireless/scan.c:2035, CPU#0: syz.0.16/6424
Modules linked in:
CPU: 0 UID: 0 PID: 6424 Comm: syz.0.16 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
RIP: 0010:cfg80211_combine_bsses net/wireless/scan.c:1788 [inline]
RIP: 0010:__cfg80211_bss_update+0x1a7f/0x2110 net/wireless/scan.c:2035
Code: f7 4d 89 37 e9 f1 fb ff ff e8 7d e0 de f6 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 e5 19 c5 f9 84 c0 0f 84 18 01 00 00 e8 48
RSP: 0018:ffffc90000007210 EFLAGS: 00010287
RAX: ffff8880306bd010 RBX: ffff8880306be800 RCX: ffff8880306bec10
RDX: ffff88803076db80 RSI: 0000000000000000 RDI: 0000000000000006
RBP: 1ffff110060d7d82 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880306bec00
R13: 0000000000000000 R14: ffff8880306be868 R15: ffff8880306be810
FS:  00007fb41481f6c0(0000) GS:ffff8881256f5000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000002000121f CR3: 0000000076e96000 CR4: 00000000003526f0
Call Trace:
 <IRQ>
 cfg80211_inform_single_bss_data+0xbc4/0x1ab0 net/wireless/scan.c:2369
 cfg80211_inform_bss_data+0x23f/0x3c20 net/wireless/scan.c:3228
 cfg80211_inform_bss_frame_data+0x3c7/0x710 net/wireless/scan.c:3319
 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:5287 [inline]
 ieee80211_rx_list+0x2508/0x3050 net/mac80211/rx.c:5544
 ieee80211_rx_napi+0x1b1/0x3e0 net/mac80211/rx.c:5567
 ieee80211_rx include/net/mac80211.h:5216 [inline]
 ieee80211_handle_queued_frames+0xe8/0x1e0 net/mac80211/main.c:452
 tasklet_action_common+0x2da/0x4b0 kernel/softirq.c:925
 handle_softirqs+0x22a/0x7c0 kernel/softirq.c:622
 do_softirq+0x76/0xd0 kernel/softirq.c:523
 </IRQ>
 <TASK>
 __local_bh_enable_ip+0xf8/0x130 kernel/softirq.c:450
 local_bh_enable include/linux/bottom_half.h:33 [inline]
 __alloc_skb+0x1b7/0x390 net/core/skbuff.c:674
 alloc_skb include/linux/skbuff.h:1383 [inline]
 nlmsg_new include/net/netlink.h:1055 [inline]
 netlink_ack+0x146/0xa50 net/netlink/af_netlink.c:2487
 netlink_rcv_skb+0x2b6/0x4b0 net/netlink/af_netlink.c:2556
 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1219
 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline]
 netlink_unicast+0x80f/0x9b0 net/netlink/af_netlink.c:1344
 netlink_sendmsg+0x813/0xb40 net/netlink/af_netlink.c:1894
 sock_sendmsg_nosec net/socket.c:727 [inline]
 __sock_sendmsg net/socket.c:742 [inline]
 __sys_sendto+0x709/0x7a0 net/socket.c:2206
 __do_sys_sendto net/socket.c:2213 [inline]
 __se_sys_sendto net/socket.c:2209 [inline]
 __x64_sys_sendto+0xde/0x100 net/socket.c:2209
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xe2/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fb413950c8e
Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
RSP: 002b:00007fb41481dea8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 00007fb41481f6c0 RCX: 00007fb413950c8e
RDX: 0000000000000074 RSI: 00007fb41481dfe0 RDI: 0000000000000003
RBP: 0000000000000000 R08: 00007fb41481df24 R09: 000000000000000c
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003
R13: 0000000000000000 R14: 00007fb41481dfe0 R15: 0000000000000000
 </TASK>