bond0: (slave wlan1): Releasing backup interface ------------[ cut here ]------------ WARNING: CPU: 1 PID: 55 at net/mac80211/chan.c:2017 ieee80211_link_release_channel+0x16c/0x19c net/mac80211/chan.c:2017 Modules linked in: CPU: 1 PID: 55 Comm: kworker/u4:3 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 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 : ffff80001cfd7540 x29: ffff80001cfd7540 x28: ffff7000039faec8 x27: ffff0000e8fdc060 x26: ffff80001cfd77c0 x25: ffff0000e8fdc010 x24: ffff0000e8fdc000 x23: 1fffe0001d1fbab5 x22: dfff800000000000 x21: 0000000000000000 x20: ffff0000e8fde228 x19: ffff0000e8fdd5a8 x18: ffff800011b8bf60 x17: ffff800018349000 x16: ffff8000082d7e60 x15: 0000000000000000 x14: 0000000000000001 x13: 1ffff000039fae58 x12: 0000000000ff0100 x11: ff0080001134c3bc x10: 0000000000000000 x9 : ffff80001134c3bc x8 : ffff0000c6855340 x7 : ffff80001134c2bc x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000001 x3 : ffff8000082d0650 x2 : ffff0000c6855340 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:855 [inline] ieee80211_uninit+0x98/0xd0 net/mac80211/iface.c:860 unregister_netdevice_many+0x10ec/0x177c net/core/dev.c:11020 ieee80211_remove_interfaces+0x398/0x600 net/mac80211/iface.c:2390 ieee80211_unregister_hw+0x60/0x278 net/mac80211/main.c:1483 mac80211_hwsim_del_radio+0x220/0x3b8 drivers/net/wireless/mac80211_hwsim.c:4688 hwsim_exit_net+0x4a0/0x564 drivers/net/wireless/mac80211_hwsim.c:5475 ops_exit_list net/core/net_namespace.c:172 [inline] cleanup_net+0x5d0/0xa84 net/core/net_namespace.c:640 process_one_work+0x7f8/0x13a4 kernel/workqueue.c:2292 worker_thread+0x8c4/0xfec 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: 4536500 hardirqs last enabled at (4536499): [] __cancel_work_timer+0x2c4/0x458 kernel/workqueue.c:3156 hardirqs last disabled at (4536500): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (4536478): [] spin_unlock_bh include/linux/spinlock.h:396 [inline] softirqs last enabled at (4536478): [] mesh_path_flush_pending+0x380/0x3a4 net/mac80211/mesh_pathtbl.c:742 softirqs last disabled at (4536476): [] spin_lock_bh include/linux/spinlock.h:356 [inline] softirqs last disabled at (4536476): [] mesh_path_flush_pending+0x108/0x3a4 net/mac80211/mesh_pathtbl.c:734 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ wlan1: Failed check-sdata-in-driver check, flags: 0x0 WARNING: CPU: 0 PID: 55 at net/mac80211/driver-ops.c:315 drv_unassign_vif_chanctx+0x358/0x638 net/mac80211/driver-ops.c:315 Modules linked in: CPU: 0 PID: 55 Comm: kworker/u4:3 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 Workqueue: netns cleanup_net pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : drv_unassign_vif_chanctx+0x358/0x638 net/mac80211/driver-ops.c:315 lr : drv_unassign_vif_chanctx+0x358/0x638 net/mac80211/driver-ops.c:315 sp : ffff80001cfd73f0 x29: ffff80001cfd73f0 x28: 0000000000000000 x27: ffff0000e8fdcc80 x26: ffff0000e8fde668 x25: dfff800000000000 x24: ffff0000e8fde7b8 x23: 0000000000000000 x22: ffff0000d1331a00 x21: ffff0000e8fde7b8 x20: ffff800017bda000 x19: ffff0000e8fdcc80 x18: ffff800011b8bf60 x17: 1fffe00033ea877e x16: ffff8000082d9364 x15: 0000000040000000 x14: 0000000000000001 x13: 1fffe00033eaae30 x12: 0000000000ff0100 x11: ff0080000a8d9ce4 x10: 0000000000000003 x9 : e77c3ad652a92100 x8 : e77c3ad652a92100 x7 : ffff80000825796c x6 : 0000000000000000 x5 : 0000000000000080 x4 : 0000000000000001 x3 : 0000000000000000 x2 : 0000000000000006 x1 : ffff800011b8da80 x0 : ffff80018a3de000 Call trace: drv_unassign_vif_chanctx+0x358/0x638 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:855 [inline] ieee80211_uninit+0x98/0xd0 net/mac80211/iface.c:860 unregister_netdevice_many+0x10ec/0x177c net/core/dev.c:11020 ieee80211_remove_interfaces+0x398/0x600 net/mac80211/iface.c:2390 ieee80211_unregister_hw+0x60/0x278 net/mac80211/main.c:1483 mac80211_hwsim_del_radio+0x220/0x3b8 drivers/net/wireless/mac80211_hwsim.c:4688 hwsim_exit_net+0x4a0/0x564 drivers/net/wireless/mac80211_hwsim.c:5475 ops_exit_list net/core/net_namespace.c:172 [inline] cleanup_net+0x5d0/0xa84 net/core/net_namespace.c:640 process_one_work+0x7f8/0x13a4 kernel/workqueue.c:2292 worker_thread+0x8c4/0xfec 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: 4536786 hardirqs last enabled at (4536785): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1374 [inline] hardirqs last enabled at (4536785): [] finish_lock_switch+0xb0/0x1c4 kernel/sched/core.c:5004 hardirqs last disabled at (4536786): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (4536752): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (4536752): [] handle_softirqs+0xaec/0xc60 kernel/softirq.c:624 softirqs last disabled at (4536503): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ wlan1: Failed check-sdata-in-driver check, flags: 0x0 WARNING: CPU: 1 PID: 55 at net/mac80211/driver-ops.h:156 drv_vif_cfg_changed net/mac80211/driver-ops.h:156 [inline] WARNING: CPU: 1 PID: 55 at net/mac80211/driver-ops.h:156 ieee80211_vif_cfg_change_notify+0x21c/0x25c net/mac80211/main.c:275 Modules linked in: CPU: 1 PID: 55 Comm: kworker/u4:3 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 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 : ffff80001cfd73f0 x29: ffff80001cfd73f0 x28: ffff800015210000 x27: ffff800015210384 x26: ffff0000d1331a20 x25: 0000000000000000 x24: dfff800000000000 x23: 0000000000000000 x22: ffff0000e8fde760 x21: ffff0000fa7e0ea0 x20: ffff800017bda000 x19: ffff0000e8fdcc80 x18: ffff800011b8bf60 x17: 1fffe00033eac97e x16: ffff8000082d9364 x15: 0000000040000000 x14: 0000000000000001 x13: 1fffe00033eaf030 x12: 0000000000ff0100 x11: ff0080000a8d9ce4 x10: 0000000000000003 x9 : e77c3ad652a92100 x8 : e77c3ad652a92100 x7 : ffff80000825796c x6 : 0000000000000000 x5 : 0000000000000080 x4 : 0000000000000001 x3 : 0000000000000000 x2 : 0000000000000006 x1 : ffff800011b8da80 x0 : ffff80018a3ff000 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:855 [inline] ieee80211_uninit+0x98/0xd0 net/mac80211/iface.c:860 unregister_netdevice_many+0x10ec/0x177c net/core/dev.c:11020 ieee80211_remove_interfaces+0x398/0x600 net/mac80211/iface.c:2390 ieee80211_unregister_hw+0x60/0x278 net/mac80211/main.c:1483 mac80211_hwsim_del_radio+0x220/0x3b8 drivers/net/wireless/mac80211_hwsim.c:4688 hwsim_exit_net+0x4a0/0x564 drivers/net/wireless/mac80211_hwsim.c:5475 ops_exit_list net/core/net_namespace.c:172 [inline] cleanup_net+0x5d0/0xa84 net/core/net_namespace.c:640 process_one_work+0x7f8/0x13a4 kernel/workqueue.c:2292 worker_thread+0x8c4/0xfec 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: 4536862 hardirqs last enabled at (4536861): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1374 [inline] hardirqs last enabled at (4536861): [] finish_lock_switch+0xb0/0x1c4 kernel/sched/core.c:5004 hardirqs last disabled at (4536862): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (4536832): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (4536832): [] handle_softirqs+0xaec/0xc60 kernel/softirq.c:624 softirqs last disabled at (4536789): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 55 at net/mac80211/iface.c:113 __ieee80211_recalc_idle net/mac80211/iface.c:113 [inline] WARNING: CPU: 0 PID: 55 at net/mac80211/iface.c:113 ieee80211_recalc_idle+0x298/0x338 net/mac80211/iface.c:149 Modules linked in: CPU: 0 PID: 55 Comm: kworker/u4:3 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 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 : ffff80001cfd73e0 x29: ffff80001cfd73e0 x28: 0000000000000000 x27: ffff800015210000 x26: ffff0000d1331a20 x25: 0000000000000000 x24: dfff800000000000 x23: 000000000000096c x22: 1fffe0001f4fc1db x21: dfff800000000000 x20: 0000000000000000 x19: ffff0000fa7e0ea0 x18: ffff800011b8bf60 x17: 1fffe00033eac97e x16: ffff8000082d7e60 x15: 0000000000000000 x14: 0000000000000007 x13: 1ffff00002a42071 x12: 0000000000ff0100 x11: ff00800011284df0 x10: 0000000000000000 x9 : ffff800011284df0 x8 : ffff0000c6855340 x7 : ffff800011224a10 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/0x70c 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:855 [inline] ieee80211_uninit+0x98/0xd0 net/mac80211/iface.c:860 unregister_netdevice_many+0x10ec/0x177c net/core/dev.c:11020 ieee80211_remove_interfaces+0x398/0x600 net/mac80211/iface.c:2390 ieee80211_unregister_hw+0x60/0x278 net/mac80211/main.c:1483 mac80211_hwsim_del_radio+0x220/0x3b8 drivers/net/wireless/mac80211_hwsim.c:4688 hwsim_exit_net+0x4a0/0x564 drivers/net/wireless/mac80211_hwsim.c:5475 ops_exit_list net/core/net_namespace.c:172 [inline] cleanup_net+0x5d0/0xa84 net/core/net_namespace.c:640 process_one_work+0x7f8/0x13a4 kernel/workqueue.c:2292 worker_thread+0x8c4/0xfec 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: 4537212 hardirqs last enabled at (4537211): [] __exit_to_kernel_mode arch/arm64/kernel/entry-common.c:84 [inline] hardirqs last enabled at (4537211): [] exit_to_kernel_mode+0xcc/0xfc arch/arm64/kernel/entry-common.c:94 hardirqs last disabled at (4537212): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (4537206): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (4537206): [] handle_softirqs+0xaec/0xc60 kernel/softirq.c:624 softirqs last disabled at (4536865): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ ODEBUG: free active (active state 0) object type: timer_list hint: mesh_rmc_init net/mac80211/mesh.c:-1 [inline] ODEBUG: free active (active state 0) object type: timer_list hint: ieee80211_mesh_housekeeping_timer+0x0/0xb4 net/mac80211/mesh.c:1624 WARNING: CPU: 1 PID: 55 at lib/debugobjects.c:518 debug_print_object lib/debugobjects.c:515 [inline] WARNING: CPU: 1 PID: 55 at lib/debugobjects.c:518 __debug_check_no_obj_freed lib/debugobjects.c:979 [inline] WARNING: CPU: 1 PID: 55 at lib/debugobjects.c:518 debug_check_no_obj_freed+0x38c/0x46c lib/debugobjects.c:1009 Modules linked in: CPU: 1 PID: 55 Comm: kworker/u4:3 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 Workqueue: netns cleanup_net pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : debug_print_object lib/debugobjects.c:515 [inline] pc : __debug_check_no_obj_freed lib/debugobjects.c:979 [inline] pc : debug_check_no_obj_freed+0x38c/0x46c lib/debugobjects.c:1009 lr : debug_print_object lib/debugobjects.c:515 [inline] lr : __debug_check_no_obj_freed lib/debugobjects.c:979 [inline] lr : debug_check_no_obj_freed+0x38c/0x46c lib/debugobjects.c:1009 sp : ffff80001cfd73f0 x29: ffff80001cfd7430 x28: ffff0000e8fe0000 x27: 0000000000000000 x26: ffff800011bab020 x25: ffff0000e8fdd9f8 x24: ffff8000113fbf3c x23: ffff0000cac47738 x22: 1fffe000198a400f x21: dfff800000000000 x20: 0000000000000004 x19: ffff0000e8fdc000 x18: ffff800011b8bf60 x17: 6e6968207473696c x16: ffff8000082d9364 x15: 0000000000000000 x14: 0000000000000001 x13: 1fffe00033eac9a3 x12: 0000000000ff0100 x11: ff00800008194238 x10: 0000000000000000 x9 : e77c3ad652a92100 x8 : e77c3ad652a92100 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff80001cfd6e78 x4 : ffff8000152f4cc0 x3 : ffff80000853856c x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000000 Call trace: debug_print_object lib/debugobjects.c:515 [inline] __debug_check_no_obj_freed lib/debugobjects.c:979 [inline] debug_check_no_obj_freed+0x38c/0x46c lib/debugobjects.c:1009 free_pages_prepare mm/page_alloc.c:1492 [inline] free_pcp_prepare mm/page_alloc.c:1536 [inline] free_unref_page_prepare+0x710/0xaf0 mm/page_alloc.c:3413 free_unref_page+0x7c/0x3a0 mm/page_alloc.c:3508 free_the_page mm/page_alloc.c:781 [inline] __free_pages+0x1a0/0x1cc mm/page_alloc.c:5732 free_large_kmalloc+0xc8/0x158 mm/slab_common.c:913 kfree+0xf4/0x1a8 mm/slab_common.c:982 kvfree+0x40/0x50 mm/util.c:627 netdev_freemem+0x4c/0x64 net/core/dev.c:10698 netdev_release+0x88/0xb0 net/core/net-sysfs.c:1908 device_release+0x8c/0x1ac drivers/base/core.c:-1 kobject_cleanup lib/kobject.c:681 [inline] kobject_release lib/kobject.c:712 [inline] kref_put include/linux/kref.h:65 [inline] kobject_put+0x2a8/0x420 lib/kobject.c:729 netdev_run_todo+0xc04/0xd2c net/core/dev.c:10534 rtnl_unlock+0x14/0x20 net/core/rtnetlink.c:147 ieee80211_unregister_hw+0xfc/0x278 net/mac80211/main.c:1490 mac80211_hwsim_del_radio+0x220/0x3b8 drivers/net/wireless/mac80211_hwsim.c:4688 hwsim_exit_net+0x4a0/0x564 drivers/net/wireless/mac80211_hwsim.c:5475 ops_exit_list net/core/net_namespace.c:172 [inline] cleanup_net+0x5d0/0xa84 net/core/net_namespace.c:640 process_one_work+0x7f8/0x13a4 kernel/workqueue.c:2292 worker_thread+0x8c4/0xfec 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: 4538128 hardirqs last enabled at (4538127): [] __up_console_sem+0xb4/0xfc kernel/printk/printk.c:261 hardirqs last disabled at (4538128): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (4537418): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (4537418): [] handle_softirqs+0xaec/0xc60 kernel/softirq.c:624 softirqs last disabled at (4537215): [] __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: 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 bond1 (unregistering): Released all slaves team0 (unregistering): Port device geneve0 removed 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