------------[ cut here ]------------ Have pending ack frames! WARNING: CPU: 0 PID: 302 at net/mac80211/main.c:1427 ieee80211_free_ack_frame+0x64/0x6c net/mac80211/main.c:1427 Modules linked in: CPU: 0 PID: 302 Comm: kworker/u4:3 Not tainted 5.15.178-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 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:1427 lr : ieee80211_free_ack_frame+0x64/0x6c net/mac80211/main.c:1427 sp : ffff80001fd576e0 x29: ffff80001fd576e0 x28: dfff800000000000 x27: 0000000000000000 x26: 1ffff00003faaf08 x25: 0000000000000001 x24: ffff0000c04623f0 x23: 1ffff00003faaee9 x22: ffff80001fd57740 x21: 1ffff00003faaee8 x20: ffff800016fd0000 x19: ffff0000ce75ddc0 x18: 0000000000000001 x17: 0000000000000000 x16: ffff800011b4e3fc x15: 00000000ffffffff x14: ffff0000c7aa51c0 x13: 0000000000000001 x12: 0000000000000001 x11: 0000000000000000 x10: 0000000000000000 x9 : 35862d749f84ba00 x8 : 35862d749f84ba00 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff80001fd56e58 x4 : ffff800014c50660 x3 : ffff8000085568c0 x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000018 Call trace: ieee80211_free_ack_frame+0x64/0x6c net/mac80211/main.c:1427 idr_for_each+0x19c/0x2b4 lib/idr.c:208 ieee80211_free_hw+0xd4/0x3a8 net/mac80211/main.c:1445 mac80211_hwsim_del_radio+0x26c/0x3d8 drivers/net/wireless/mac80211_hwsim.c:3476 hwsim_exit_net+0x518/0x5e0 drivers/net/wireless/mac80211_hwsim.c:4243 ops_exit_list net/core/net_namespace.c:172 [inline] cleanup_net+0x644/0xa9c net/core/net_namespace.c:618 process_one_work+0x790/0x11b8 kernel/workqueue.c:2310 worker_thread+0x910/0x1034 kernel/workqueue.c:2457 kthread+0x37c/0x45c kernel/kthread.c:334 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:870 irq event stamp: 1204646 hardirqs last enabled at (1204645): [] __up_console_sem+0xb4/0x100 kernel/printk/printk.c:257 hardirqs last disabled at (1204646): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:396 softirqs last enabled at (1202294): [] spin_unlock_bh include/linux/spinlock.h:408 [inline] softirqs last enabled at (1202294): [] netif_addr_unlock_bh include/linux/netdevice.h:4617 [inline] softirqs last enabled at (1202294): [] dev_mc_flush+0x1b4/0x1f8 net/core/dev_addr_lists.c:1001 softirqs last disabled at (1202292): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:18 ---[ end trace ae1c305ed6526f44 ]--- device hsr_slave_0 left promiscuous mode device 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 device bridge_slave_1 left promiscuous mode bridge0: port 2(bridge_slave_1) entered disabled state device bridge_slave_0 left promiscuous mode bridge0: port 1(bridge_slave_0) entered disabled state device veth1_macvtap left promiscuous mode device veth0_macvtap left promiscuous mode device veth1_vlan left promiscuous mode device 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 netdevsim netdevsim5 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 netdevsim netdevsim5 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 netdevsim netdevsim5 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 netdevsim netdevsim5 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 device hsr_slave_0 left promiscuous mode device 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 device bridge_slave_1 left promiscuous mode bridge0: port 2(bridge_slave_1) entered disabled state device bridge_slave_0 left promiscuous mode bridge0: port 1(bridge_slave_0) entered disabled state device veth1_macvtap left promiscuous mode device veth0_macvtap left promiscuous mode device veth1_vlan left promiscuous mode device 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