WARNING: CPU: 1 PID: 2881 at net/mac80211/main.c:1684 ieee80211_free_ack_frame+0x4a/0x50 net/mac80211/main.c:1684
Modules linked in:
CPU: 1 PID: 2881 Comm: kworker/u8:11 Not tainted 6.9.0-rc7-syzkaller-00132-g1164057b3c00 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
Workqueue: netns cleanup_net
RIP: 0010:ieee80211_free_ack_frame+0x4a/0x50 net/mac80211/main.c:1684
Code: 00 00 00 e8 68 88 61 fe 31 c0 5b c3 cc cc cc cc e8 8b 69 ac f6 c6 05 41 ff a9 04 01 90 48 c7 c7 c0 1c dd 8c e8 97 db 6e f6 90 <0f> 0b 90 90 eb cb 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90
RSP: 0018:ffffc9000b2b77d0 EFLAGS: 00010246
RAX: f918029f1d54db00 RBX: ffff888076fc7000 RCX: ffff88802bafda00
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc9000b2b78d8 R08: ffffffff81587d32 R09: 1ffff92001656e98
R10: dffffc0000000000 R11: fffff52001656e99 R12: ffffc9000b2b7840
R13: dffffc0000000000 R14: ffff88802f38150c R15: ffff88805dbee970
FS:  0000000000000000(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f21a4ed66e4 CR3: 0000000061906000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 idr_for_each+0x1e2/0x2d0 lib/idr.c:208
 ieee80211_free_hw+0xd0/0x480 net/mac80211/main.c:1701
 mac80211_hwsim_del_radio+0x329/0x4c0 drivers/net/wireless/virtual/mac80211_hwsim.c:5563
 hwsim_exit_net+0x5c1/0x670 drivers/net/wireless/virtual/mac80211_hwsim.c:6437
 ops_exit_list net/core/net_namespace.c:173 [inline]
 cleanup_net+0x802/0xcc0 net/core/net_namespace.c:640
 process_one_work kernel/workqueue.c:3267 [inline]
 process_scheduled_works+0xa10/0x17c0 kernel/workqueue.c:3348
 worker_thread+0x86d/0xd70 kernel/workqueue.c:3429
 kthread+0x2f0/0x390 kernel/kthread.c:388
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>