syzbot

------------[ cut here ]------------
Have pending ack frames!
WARNING: CPU: 1 PID: 4093 at net/mac80211/main.c:1496 ieee80211_free_ack_frame+0x4d/0x60 net/mac80211/main.c:1496
Modules linked in:
CPU: 0 PID: 4093 Comm: kworker/u4:7 Not tainted 5.19.0-syzkaller-13930-g7ebfc85e2cd7 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022
Workqueue: netns cleanup_net
RIP: 0010:ieee80211_free_ack_frame+0x4d/0x60 net/mac80211/main.c:1496
Code: 48 89 ef be 01 00 00 00 e8 50 f4 8b fe 31 c0 5b 5d c3 e8 16 58 b8 f8 48 c7 c7 80 9b 14 8b c6 05 88 08 06 05 01 e8 30 99 76 00 <0f> 0b eb cd 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 41 57 41
RSP: 0018:ffffc900002ef9d0 EFLAGS: 00010282
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: ffff88807cd26100 RSI: ffffffff81611b48 RDI: fffff5200005df2c
RBP: ffff888021b89cc0 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000080000000 R11: 0000000000000000 R12: dffffc0000000000
R13: ffffffff88c2dd70 R14: 0000000000000000 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007faba5db2000 CR3: 000000007d04d000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 idr_for_each+0x113/0x220 lib/idr.c:208
 ieee80211_free_hw+0x9b/0x2b0 net/mac80211/main.c:1512
 mac80211_hwsim_del_radio drivers/net/wireless/mac80211_hwsim.c:4233 [inline]
 hwsim_exit_net+0x55f/0xca0 drivers/net/wireless/mac80211_hwsim.c:5017
 ops_exit_list+0xb0/0x170 net/core/net_namespace.c:163
 cleanup_net+0x4ea/0xb00 net/core/net_namespace.c:595
 process_one_work+0x991/0x1610 kernel/workqueue.c:2289
 worker_thread+0x665/0x1080 kernel/workqueue.c:2436
 kthread+0x2e4/0x3a0 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>