------------[ cut here ]------------ Have pending ack frames! WARNING: CPU: 0 PID: 2073 at net/mac80211/main.c:1527 ieee80211_free_ack_frame+0x64/0x6c net/mac80211/main.c:1527 Modules linked in: CPU: 0 PID: 2073 Comm: kworker/u4:9 Not tainted 6.8.0-rc7-syzkaller-00135-g707081b61156 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 Workqueue: netns cleanup_net pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : ieee80211_free_ack_frame+0x64/0x6c net/mac80211/main.c:1527 lr : ieee80211_free_ack_frame+0x64/0x6c net/mac80211/main.c:1527 sp : ffff80009c8d7720 x29: ffff80009c8d7720 x28: dfff800000000000 x27: 0000000000000000 x26: 1ffff0001391af10 x25: 0000000000000001 x24: ffff0000ca38a130 x23: 1ffff0001391aef1 x22: ffff80009c8d7780 x21: 1ffff0001391aef0 x20: ffff800091cc2000 x19: ffff0000d39aa000 x18: 1fffe000367fff96 x17: ffff80008ec9d000 x16: ffff80008032116c x15: 0000000000000001 x14: 1fffe000368027e8 x13: 0000000000000000 x12: 0000000000000003 x11: 0000000000000001 x10: 0000000000000003 x9 : 493f224251dc1800 x8 : 493f224251dc1800 x7 : ffff800080297c0c x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000001 x3 : 0000000000000000 x2 : 0000000000000007 x1 : ffff80008aedea60 x0 : ffff800125414000 Call trace: ieee80211_free_ack_frame+0x64/0x6c net/mac80211/main.c:1527 idr_for_each+0x19c/0x2b4 lib/idr.c:208 ieee80211_free_hw+0xc8/0x410 net/mac80211/main.c:1544 mac80211_hwsim_del_radio+0x26c/0x3e0 drivers/net/wireless/virtual/mac80211_hwsim.c:5438 hwsim_exit_net+0x51c/0x5e4 drivers/net/wireless/virtual/mac80211_hwsim.c:6312 ops_exit_list net/core/net_namespace.c:170 [inline] cleanup_net+0x564/0x8d0 net/core/net_namespace.c:618 process_one_work+0x694/0x1204 kernel/workqueue.c:2633 process_scheduled_works kernel/workqueue.c:2706 [inline] worker_thread+0x938/0xef4 kernel/workqueue.c:2787 kthread+0x288/0x310 kernel/kthread.c:388 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:860 irq event stamp: 1874194 hardirqs last enabled at (1874193): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1397 [inline] hardirqs last enabled at (1874193): [] finish_lock_switch+0xbc/0x1e4 kernel/sched/core.c:5154 hardirqs last disabled at (1874194): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:470 softirqs last enabled at (1874176): [] softirq_handle_end kernel/softirq.c:399 [inline] softirqs last enabled at (1874176): [] __do_softirq+0xac8/0xce4 kernel/softirq.c:582 softirqs last disabled at (1874153): [] ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:81 ---[ end trace 0000000000000000 ]--- hsr_slave_0: left promiscuous mode hsr_slave_1: left promiscuous mode batman_adv: batadv0: Interface deactivated: batadv_slave_0 batman_adv: batadv0: Removing interface: batadv_slave_0 batman_adv: batadv0: Interface deactivated: batadv_slave_1 batman_adv: batadv0: Removing interface: batadv_slave_1 bridge_slave_1: left allmulticast mode bridge_slave_1: left promiscuous mode bridge0: port 2(bridge_slave_1) entered disabled state bridge_slave_0: left allmulticast mode bridge_slave_0: left promiscuous mode bridge0: port 1(bridge_slave_0) entered disabled state hsr_slave_0: left promiscuous mode hsr_slave_1: left promiscuous mode batman_adv: batadv0: Interface deactivated: batadv_slave_0 batman_adv: batadv0: Removing interface: batadv_slave_0 batman_adv: batadv0: Interface deactivated: batadv_slave_1 batman_adv: batadv0: Removing interface: batadv_slave_1 bridge_slave_1: left allmulticast mode bridge_slave_1: left promiscuous mode bridge0: port 2(bridge_slave_1) entered disabled state bridge_slave_0: left allmulticast mode bridge_slave_0: left promiscuous mode bridge0: port 1(bridge_slave_0) entered disabled state veth1_macvtap: left promiscuous mode veth0_macvtap: left promiscuous mode veth1_vlan: left promiscuous mode veth0_vlan: left promiscuous mode veth1_macvtap: left promiscuous mode veth0_macvtap: left promiscuous mode veth1_vlan: left promiscuous mode veth0_vlan: left promiscuous mode team0 (unregistering): Port device team_slave_1 removed team0 (unregistering): Port device team_slave_0 removed bond0 (unregistering): (slave bond_slave_1): Releasing backup interface bond0 (unregistering): (slave bond_slave_0): Releasing backup interface bond0 (unregistering): Released all slaves team0 (unregistering): Port device team_slave_1 removed team0 (unregistering): Port device team_slave_0 removed bond0 (unregistering): (slave bond_slave_1): Releasing backup interface bond0 (unregistering): (slave bond_slave_0): Releasing backup interface bond0 (unregistering): Released all slaves