device bridge_slave_1 entered promiscuous mode bond0: Enslaving bond_slave_0 as an active interface with an up link bond0: Enslaving bond_slave_1 as an active interface with an up link ------------[ cut here ]------------ Have pending ack frames! WARNING: CPU: 0 PID: 3583 at net/mac80211/main.c:1265 ieee80211_free_ack_frame+0x48/0x50 net/mac80211/main.c:1265 Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 3583 Comm: kworker/u4:4 Not tainted 4.19.165-syzkaller #0 IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: netns cleanup_net Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1fc/0x2fe lib/dump_stack.c:118 panic+0x26a/0x50e kernel/panic.c:186 __warn.cold+0x20/0x61 kernel/panic.c:541 report_bug+0x262/0x2b0 lib/bug.c:186 fixup_bug arch/x86/kernel/traps.c:178 [inline] fixup_bug arch/x86/kernel/traps.c:173 [inline] do_error_trap+0x1d7/0x310 arch/x86/kernel/traps.c:296 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:1038 RIP: 0010:ieee80211_free_ack_frame+0x48/0x50 net/mac80211/main.c:1265 Code: e8 1d 29 b0 f9 48 89 ef e8 b5 6c d9 fe 31 c0 5b 5d c3 e8 0b 29 b0 f9 48 c7 c7 20 ba 66 89 c6 05 73 dd 59 03 01 e8 63 05 84 f9 <0f> 0b eb d2 0f 1f 40 00 41 57 41 56 41 55 41 54 49 bc 00 00 00 00 RSP: 0018:ffff8880a8e2fa28 EFLAGS: 00010282 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff814fdd11 RDI: ffffed10151c5f37 RBP: ffff88809b076200 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000005 R11: 0000000000000000 R12: ffff8880aa541b58 R13: dffffc0000000000 R14: ffffffff87b4a7d0 R15: 0000000000000000 idr_for_each+0x132/0x290 lib/idr.c:211 ieee80211_free_hw+0x88/0x140 net/mac80211/main.c:1280 mac80211_hwsim_del_radio drivers/net/wireless/mac80211_hwsim.c:2998 [inline] hwsim_exit_net+0xbdf/0x1580 drivers/net/wireless/mac80211_hwsim.c:3666 ops_exit_list+0xa5/0x150 net/core/net_namespace.c:153 cleanup_net+0x3b4/0x8b0 net/core/net_namespace.c:553 process_one_work+0x864/0x1570 kernel/workqueue.c:2155 worker_thread+0x64c/0x1130 kernel/workqueue.c:2298 kthread+0x33f/0x460 kernel/kthread.c:259 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415 Kernel Offset: disabled Rebooting in 86400 seconds..