------------[ cut here ]------------
WARNING: net/wireless/ibss.c:37 at __cfg80211_ibss_joined+0x4d5/0x580 net/wireless/ibss.c:37, CPU#2: kworker/u32:3/59
Modules linked in:
CPU: 2 UID: 0 PID: 59 Comm: kworker/u32:3 Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Workqueue: cfg80211 cfg80211_event_work
RIP: 0010:__cfg80211_ibss_joined+0x4d5/0x580 net/wireless/ibss.c:37
Code: ff ff e8 0e 9c ec f6 90 0f 0b 90 e9 58 fe ff ff e8 a0 79 55 f7 e9 22 fc ff ff e8 36 79 55 f7 e9 66 fc ff ff e8 ec 9b ec f6 90 <0f> 0b 90 e9 6f fc ff ff e8 de 9b ec f6 90 0f 0b e8 a6 79 55 f7 e9
RSP: 0018:ffffc900007afa60 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffff888056c4cd90 RCX: 0000000000000006
RDX: ffff888020f7a4c0 RSI: ffffffff8ad1cef4 RDI: ffffffff8bf2b600
RBP: ffffc900007afb10 R08: 0000000000000001 R09: 0000000000000001
R10: ffffffff9088edd7 R11: ffff888020f7aff0 R12: ffff888056c4c000
R13: 1ffff920000f5f50 R14: 0000000000000000 R15: ffffc900007afaa0
FS:  0000000000000000(0000) GS:ffff8880978fc000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000032df8ffc CR3: 0000000052c06000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 cfg80211_process_wdev_events+0x3dd/0x5c0 net/wireless/util.c:1143
 cfg80211_process_rdev_events+0x9f/0x130 net/wireless/util.c:1170
 cfg80211_event_work+0x37/0x70 net/wireless/core.c:334
 process_one_work+0x9ba/0x1b20 kernel/workqueue.c:3257
 process_scheduled_works kernel/workqueue.c:3340 [inline]
 worker_thread+0x6c8/0xf10 kernel/workqueue.c:3421
 kthread+0x3c5/0x780 kernel/kthread.c:463
 ret_from_fork+0x983/0xb10 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246
 </TASK>