bond0: (slave wlan1): Releasing backup interface ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4655 at net/mac80211/chan.c:2017 ieee80211_link_release_channel+0x16c/0x19c net/mac80211/chan.c:2017 Modules linked in: CPU: 0 PID: 4655 Comm: kworker/u4:11 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 Workqueue: netns cleanup_net pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : ieee80211_link_release_channel+0x16c/0x19c net/mac80211/chan.c:2017 lr : ieee80211_link_release_channel+0x16c/0x19c net/mac80211/chan.c:2017 sp : ffff8000219c7540 x29: ffff8000219c7540 x28: ffff8000219c7640 x27: ffff0000f7000060 x26: ffff8000219c77c0 x25: ffff0000f7000010 x24: 1fffe0001ee00183 x23: 1fffe0001ee002b5 x22: dfff800000000000 x21: 0000000000000000 x20: ffff0000f7002258 x19: ffff0000f70015a8 x18: ffff800011abbcc0 x17: ffff8000181f9000 x16: ffff8000082d1108 x15: ffff80000d3c4524 x14: ffff800011170ce8 x13: 1ffff00002a180b1 x12: 0000000000ff0100 x11: ff00800011297000 x10: 0000000000000000 x9 : ffff800011297000 x8 : ffff0000c4edb780 x7 : ffff800011296f00 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000001 x3 : ffff8000082c98ac x2 : ffff0000c4edb780 x1 : 0000000000000000 x0 : 0000000000000000 Call trace: ieee80211_link_release_channel+0x16c/0x19c net/mac80211/chan.c:2017 ieee80211_link_stop+0x9c/0xc4 net/mac80211/link.c:72 ieee80211_teardown_sdata net/mac80211/iface.c:847 [inline] ieee80211_uninit+0x98/0xd0 net/mac80211/iface.c:852 unregister_netdevice_many+0x10a4/0x1740 net/core/dev.c:11007 ieee80211_remove_interfaces+0x38c/0x5ec net/mac80211/iface.c:2382 ieee80211_unregister_hw+0x60/0x278 net/mac80211/main.c:1483 mac80211_hwsim_del_radio+0x210/0x3a8 drivers/net/wireless/mac80211_hwsim.c:4688 hwsim_exit_net+0x49c/0x558 drivers/net/wireless/mac80211_hwsim.c:5475 ops_exit_list net/core/net_namespace.c:172 [inline] cleanup_net+0x5c4/0xa74 net/core/net_namespace.c:640 process_one_work+0x7f4/0x13a8 kernel/workqueue.c:2292 worker_thread+0x8c8/0xfbc kernel/workqueue.c:2439 kthread+0x250/0x2d8 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 10018878 hardirqs last enabled at (10018877): [] __cancel_work_timer+0x2b0/0x448 kernel/workqueue.c:3156 hardirqs last disabled at (10018878): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (10017492): [] spin_unlock_bh include/linux/spinlock.h:396 [inline] softirqs last enabled at (10017492): [] netif_addr_unlock_bh include/linux/netdevice.h:4510 [inline] softirqs last enabled at (10017492): [] dev_mc_flush+0x1b0/0x1f4 net/core/dev_addr_lists.c:1036 softirqs last disabled at (10017490): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ wlan1: Failed check-sdata-in-driver check, flags: 0x0 WARNING: CPU: 0 PID: 4655 at net/mac80211/driver-ops.c:315 drv_unassign_vif_chanctx+0x358/0x63c net/mac80211/driver-ops.c:315 Modules linked in: CPU: 0 PID: 4655 Comm: kworker/u4:11 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 Workqueue: netns cleanup_net pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : drv_unassign_vif_chanctx+0x358/0x63c net/mac80211/driver-ops.c:315 lr : drv_unassign_vif_chanctx+0x358/0x63c net/mac80211/driver-ops.c:315 sp : ffff8000219c73f0 x29: ffff8000219c73f0 x28: 0000000000000000 x27: ffff0000f7000c80 x26: ffff0000f7002698 x25: dfff800000000000 x24: ffff0000f70027e8 x23: 0000000000000000 x22: ffff0000d2ceb800 x21: ffff0000f70027e8 x20: ffff800017a8b000 x19: ffff0000f7000c80 x18: ffff800011abbcc0 x17: 1fffe00033ed797e x16: ffff8000082d25b8 x15: 0000000040000000 x14: 0000000000000002 x13: 1ffff00002a180b1 x12: 0000000000ff0100 x11: ff0080000a893e94 x10: 0000000000000003 x9 : e4987d0a8c4a4700 x8 : e4987d0a8c4a4700 x7 : ffff800008251e80 x6 : 0000000000000000 x5 : 0000000000000080 x4 : 0000000000000001 x3 : 0000000000000000 x2 : 0000000000000006 x1 : ffff800011abd7c0 x0 : ffff80018a6a7000 Call trace: drv_unassign_vif_chanctx+0x358/0x63c net/mac80211/driver-ops.c:315 ieee80211_assign_link_chanctx+0x140/0x82c net/mac80211/chan.c:868 __ieee80211_link_release_channel+0x29c/0x55c net/mac80211/chan.c:1799 ieee80211_link_release_channel+0x130/0x19c net/mac80211/chan.c:2018 ieee80211_link_stop+0x9c/0xc4 net/mac80211/link.c:72 ieee80211_teardown_sdata net/mac80211/iface.c:847 [inline] ieee80211_uninit+0x98/0xd0 net/mac80211/iface.c:852 unregister_netdevice_many+0x10a4/0x1740 net/core/dev.c:11007 ieee80211_remove_interfaces+0x38c/0x5ec net/mac80211/iface.c:2382 ieee80211_unregister_hw+0x60/0x278 net/mac80211/main.c:1483 mac80211_hwsim_del_radio+0x210/0x3a8 drivers/net/wireless/mac80211_hwsim.c:4688 hwsim_exit_net+0x49c/0x558 drivers/net/wireless/mac80211_hwsim.c:5475 ops_exit_list net/core/net_namespace.c:172 [inline] cleanup_net+0x5c4/0xa74 net/core/net_namespace.c:640 process_one_work+0x7f4/0x13a8 kernel/workqueue.c:2292 worker_thread+0x8c8/0xfbc kernel/workqueue.c:2439 kthread+0x250/0x2d8 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 10019018 hardirqs last enabled at (10019017): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1367 [inline] hardirqs last enabled at (10019017): [] finish_lock_switch+0xb0/0x1c4 kernel/sched/core.c:5003 hardirqs last disabled at (10019018): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (10018988): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (10018988): [] handle_softirqs+0xaf8/0xc6c kernel/softirq.c:624 softirqs last disabled at (10018881): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ wlan1: Failed check-sdata-in-driver check, flags: 0x0 WARNING: CPU: 0 PID: 4655 at net/mac80211/driver-ops.h:156 drv_vif_cfg_changed net/mac80211/driver-ops.h:156 [inline] WARNING: CPU: 0 PID: 4655 at net/mac80211/driver-ops.h:156 ieee80211_vif_cfg_change_notify+0x21c/0x25c net/mac80211/main.c:275 Modules linked in: CPU: 0 PID: 4655 Comm: kworker/u4:11 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 Workqueue: netns cleanup_net pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : drv_vif_cfg_changed net/mac80211/driver-ops.h:156 [inline] pc : ieee80211_vif_cfg_change_notify+0x21c/0x25c net/mac80211/main.c:275 lr : drv_vif_cfg_changed net/mac80211/driver-ops.h:156 [inline] lr : ieee80211_vif_cfg_change_notify+0x21c/0x25c net/mac80211/main.c:275 sp : ffff8000219c73f0 x29: ffff8000219c73f0 x28: ffff8000150c0000 x27: ffff8000150c0584 x26: ffff0000d2ceb820 x25: 0000000000000000 x24: dfff800000000000 x23: 0000000000000000 x22: ffff0000f7002790 x21: ffff0000f7050ea0 x20: ffff800017a8b000 x19: ffff0000f7000c80 x18: ffff800011abbcc0 x17: 1fffe00033ed797e x16: ffff8000082d25b8 x15: 0000000040000000 x14: 0000000000000002 x13: 1ffff00002a180b1 x12: 0000000000ff0100 x11: ff0080000a893e94 x10: 0000000000000003 x9 : e4987d0a8c4a4700 x8 : e4987d0a8c4a4700 x7 : ffff800008251e80 x6 : 0000000000000000 x5 : 0000000000000080 x4 : 0000000000000001 x3 : 0000000000000000 x2 : 0000000000000006 x1 : ffff800011abd7c0 x0 : ffff80018a6a7000 Call trace: drv_vif_cfg_changed net/mac80211/driver-ops.h:156 [inline] ieee80211_vif_cfg_change_notify+0x21c/0x25c net/mac80211/main.c:275 ieee80211_assign_link_chanctx+0x6e8/0x82c net/mac80211/chan.c:905 __ieee80211_link_release_channel+0x29c/0x55c net/mac80211/chan.c:1799 ieee80211_link_release_channel+0x130/0x19c net/mac80211/chan.c:2018 ieee80211_link_stop+0x9c/0xc4 net/mac80211/link.c:72 ieee80211_teardown_sdata net/mac80211/iface.c:847 [inline] ieee80211_uninit+0x98/0xd0 net/mac80211/iface.c:852 unregister_netdevice_many+0x10a4/0x1740 net/core/dev.c:11007 ieee80211_remove_interfaces+0x38c/0x5ec net/mac80211/iface.c:2382 ieee80211_unregister_hw+0x60/0x278 net/mac80211/main.c:1483 mac80211_hwsim_del_radio+0x210/0x3a8 drivers/net/wireless/mac80211_hwsim.c:4688 hwsim_exit_net+0x49c/0x558 drivers/net/wireless/mac80211_hwsim.c:5475 ops_exit_list net/core/net_namespace.c:172 [inline] cleanup_net+0x5c4/0xa74 net/core/net_namespace.c:640 process_one_work+0x7f4/0x13a8 kernel/workqueue.c:2292 worker_thread+0x8c8/0xfbc kernel/workqueue.c:2439 kthread+0x250/0x2d8 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 10019176 hardirqs last enabled at (10019175): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1367 [inline] hardirqs last enabled at (10019175): [] finish_lock_switch+0xb0/0x1c4 kernel/sched/core.c:5003 hardirqs last disabled at (10019176): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (10019146): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (10019146): [] handle_softirqs+0xaf8/0xc6c kernel/softirq.c:624 softirqs last disabled at (10019021): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4655 at net/mac80211/iface.c:113 __ieee80211_recalc_idle net/mac80211/iface.c:113 [inline] WARNING: CPU: 0 PID: 4655 at net/mac80211/iface.c:113 ieee80211_recalc_idle+0x298/0x338 net/mac80211/iface.c:149 Modules linked in: CPU: 0 PID: 4655 Comm: kworker/u4:11 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 Workqueue: netns cleanup_net pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : __ieee80211_recalc_idle net/mac80211/iface.c:113 [inline] pc : ieee80211_recalc_idle+0x298/0x338 net/mac80211/iface.c:149 lr : __ieee80211_recalc_idle net/mac80211/iface.c:113 [inline] lr : ieee80211_recalc_idle+0x298/0x338 net/mac80211/iface.c:149 sp : ffff8000219c73e0 x29: ffff8000219c73e0 x28: 0000000000000000 x27: ffff8000150c0000 x26: ffff0000d2ceb820 x25: 0000000000000000 x24: dfff800000000000 x23: 000000000000096c x22: 1fffe0001ee0a1db x21: dfff800000000000 x20: 0000000000000000 x19: ffff0000f7050ea0 x18: ffff800011abbcc0 x17: 1fffe00033ed797e x16: ffff8000082d1108 x15: 0000000000000000 x14: 0000000000000007 x13: 1ffff00002a180b1 x12: 0000000000ff0100 x11: ff008000111d1128 x10: 0000000000000000 x9 : ffff8000111d1128 x8 : ffff0000c4edb780 x7 : ffff800011171388 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : 0000000000000002 x2 : 0000000000000008 x1 : 0000000000000000 x0 : 0000000000000000 Call trace: __ieee80211_recalc_idle net/mac80211/iface.c:113 [inline] ieee80211_recalc_idle+0x298/0x338 net/mac80211/iface.c:149 ieee80211_del_chanctx+0x35c/0x710 net/mac80211/chan.c:750 ieee80211_free_chanctx+0x250/0x334 net/mac80211/chan.c:761 __ieee80211_link_release_channel+0x3d4/0x55c net/mac80211/chan.c:1801 ieee80211_link_release_channel+0x130/0x19c net/mac80211/chan.c:2018 ieee80211_link_stop+0x9c/0xc4 net/mac80211/link.c:72 ieee80211_teardown_sdata net/mac80211/iface.c:847 [inline] ieee80211_uninit+0x98/0xd0 net/mac80211/iface.c:852 unregister_netdevice_many+0x10a4/0x1740 net/core/dev.c:11007 ieee80211_remove_interfaces+0x38c/0x5ec net/mac80211/iface.c:2382 ieee80211_unregister_hw+0x60/0x278 net/mac80211/main.c:1483 mac80211_hwsim_del_radio+0x210/0x3a8 drivers/net/wireless/mac80211_hwsim.c:4688 hwsim_exit_net+0x49c/0x558 drivers/net/wireless/mac80211_hwsim.c:5475 ops_exit_list net/core/net_namespace.c:172 [inline] cleanup_net+0x5c4/0xa74 net/core/net_namespace.c:640 process_one_work+0x7f4/0x13a8 kernel/workqueue.c:2292 worker_thread+0x8c8/0xfbc kernel/workqueue.c:2439 kthread+0x250/0x2d8 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 10019372 hardirqs last enabled at (10019371): [] __exit_to_kernel_mode arch/arm64/kernel/entry-common.c:84 [inline] hardirqs last enabled at (10019371): [] exit_to_kernel_mode+0xcc/0xfc arch/arm64/kernel/entry-common.c:94 hardirqs last disabled at (10019372): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (10019366): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (10019366): [] handle_softirqs+0xaf8/0xc6c kernel/softirq.c:624 softirqs last disabled at (10019179): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- device hsr_slave_0 left promiscuous mode device hsr_slave_1 left promiscuous mode batman_adv: batadv0: Removing interface: batadv_slave_0 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 bond4 (unregistering): Released all slaves bond3 (unregistering): Released all slaves bond2 (unregistering): Released all slaves bond1 (unregistering): Released all slaves bond0 (unregistering): (slave bond_slave_1): Releasing backup interface bond0 (unregistering): (slave bond_slave_0): Releasing backup interface bond0 (unregistering): Released all slaves netdevsim netdevsim2 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 netdevsim netdevsim2 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 netdevsim netdevsim2 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 netdevsim netdevsim2 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 tipc: Left network mode tipc: Left network mode tipc: Left network mode bridge0: port 3(macsec1) entered disabled state