wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50
wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50
=============================
WARNING: suspicious RCU usage
6.16.0-rc7-syzkaller-gafd8c2c9e2e2 #0 Not tainted
-----------------------------
net/sched/sch_generic.c:1286 suspicious rcu_dereference_protected() usage!
other info that might help us debug this:
rcu_scheduler_active = 2, debug_locks = 1
3 locks held by kworker/u8:3/49:
#0: ffff888020af8948 ((wq_completion)bond0){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3213 [inline]
#0: ffff888020af8948 ((wq_completion)bond0){+.+.}-{0:0}, at: process_scheduled_works+0x9b4/0x17b0 kernel/workqueue.c:3321
#1: ffffc90000b97bc0 ((work_completion)(&(&bond->mii_work)->work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3214 [inline]
#1: ffffc90000b97bc0 ((work_completion)(&(&bond->mii_work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x9ef/0x17b0 kernel/workqueue.c:3321
#2: ffffffff8e13f0e0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:331 [inline]
#2: ffffffff8e13f0e0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:841 [inline]
#2: ffffffff8e13f0e0 (rcu_read_lock){....}-{1:3}, at: bond_mii_monitor+0x153/0x2e00 drivers/net/bonding/bond_main.c:2965
stack backtrace:
CPU: 1 UID: 0 PID: 49 Comm: kworker/u8:3 Not tainted 6.16.0-rc7-syzkaller-gafd8c2c9e2e2 #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
Workqueue: bond0 bond_mii_monitor
Call Trace:
dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120
lockdep_rcu_suspicious+0x140/0x1d0 kernel/locking/lockdep.c:6871
dev_deactivate_queue+0x8f/0x1b0 net/sched/sch_generic.c:1286
netdev_for_each_tx_queue include/linux/netdevice.h:2655 [inline]
dev_deactivate_many+0xd3/0xd40 net/sched/sch_generic.c:1362
dev_deactivate+0x118/0x1b0 net/sched/sch_generic.c:1399
linkwatch_do_dev+0x10f/0x170 net/core/link_watch.c:184
ethtool_op_get_link+0x15/0x70 net/ethtool/ioctl.c:63
bond_check_dev_link+0x444/0x6c0 drivers/net/bonding/bond_main.c:863
bond_miimon_inspect drivers/net/bonding/bond_main.c:2745 [inline]
bond_mii_monitor+0x428/0x2e00 drivers/net/bonding/bond_main.c:2967
process_one_work kernel/workqueue.c:3238 [inline]
process_scheduled_works+0xae1/0x17b0 kernel/workqueue.c:3321
worker_thread+0x8a0/0xda0 kernel/workqueue.c:3402
kthread+0x70e/0x8a0 kernel/kthread.c:464
ret_from_fork+0x3fc/0x770 arch/x86/kernel/process.c:148
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
=============================
WARNING: suspicious RCU usage
6.16.0-rc7-syzkaller-gafd8c2c9e2e2 #0 Not tainted
-----------------------------
./include/linux/rtnetlink.h:163 suspicious rcu_dereference_protected() usage!
other info that might help us debug this:
rcu_scheduler_active = 2, debug_locks = 1
3 locks held by kworker/u8:3/49:
#0: ffff888020af8948 ((wq_completion)bond0){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3213 [inline]
#0: ffff888020af8948 ((wq_completion)bond0){+.+.}-{0:0}, at: process_scheduled_works+0x9b4/0x17b0 kernel/workqueue.c:3321
#1: ffffc90000b97bc0 ((work_completion)(&(&bond->mii_work)->work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3214 [inline]
#1: ffffc90000b97bc0 ((work_completion)(&(&bond->mii_work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x9ef/0x17b0 kernel/workqueue.c:3321
#2: ffffffff8e13f0e0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:331 [inline]
#2: ffffffff8e13f0e0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:841 [inline]
#2: ffffffff8e13f0e0 (rcu_read_lock){....}-{1:3}, at: bond_mii_monitor+0x153/0x2e00 drivers/net/bonding/bond_main.c:2965
stack backtrace:
CPU: 1 UID: 0 PID: 49 Comm: kworker/u8:3 Not tainted 6.16.0-rc7-syzkaller-gafd8c2c9e2e2 #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
Workqueue: bond0 bond_mii_monitor
Call Trace:
dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120
lockdep_rcu_suspicious+0x140/0x1d0 kernel/locking/lockdep.c:6871
dev_ingress_queue include/linux/rtnetlink.h:163 [inline]
dev_deactivate_many+0x197/0xd40 net/sched/sch_generic.c:1364
dev_deactivate+0x118/0x1b0 net/sched/sch_generic.c:1399
linkwatch_do_dev+0x10f/0x170 net/core/link_watch.c:184
ethtool_op_get_link+0x15/0x70 net/ethtool/ioctl.c:63
bond_check_dev_link+0x444/0x6c0 drivers/net/bonding/bond_main.c:863
bond_miimon_inspect drivers/net/bonding/bond_main.c:2745 [inline]
bond_mii_monitor+0x428/0x2e00 drivers/net/bonding/bond_main.c:2967
process_one_work kernel/workqueue.c:3238 [inline]
process_scheduled_works+0xae1/0x17b0 kernel/workqueue.c:3321
worker_thread+0x8a0/0xda0 kernel/workqueue.c:3402
kthread+0x70e/0x8a0 kernel/kthread.c:464
ret_from_fork+0x3fc/0x770 arch/x86/kernel/process.c:148
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
=============================
WARNING: suspicious RCU usage
6.16.0-rc7-syzkaller-gafd8c2c9e2e2 #0 Not tainted
-----------------------------
net/sched/sch_generic.c:1302 suspicious rcu_dereference_protected() usage!
other info that might help us debug this:
rcu_scheduler_active = 2, debug_locks = 1
3 locks held by kworker/u8:3/49:
#0: ffff888020af8948 ((wq_completion)bond0){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3213 [inline]
#0: ffff888020af8948 ((wq_completion)bond0){+.+.}-{0:0}, at: process_scheduled_works+0x9b4/0x17b0 kernel/workqueue.c:3321
#1: ffffc90000b97bc0 ((work_completion)(&(&bond->mii_work)->work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3214 [inline]
#1: ffffc90000b97bc0 ((work_completion)(&(&bond->mii_work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x9ef/0x17b0 kernel/workqueue.c:3321
#2: ffffffff8e13f0e0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:331 [inline]
#2: ffffffff8e13f0e0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:841 [inline]
#2: ffffffff8e13f0e0 (rcu_read_lock){....}-{1:3}, at: bond_mii_monitor+0x153/0x2e00 drivers/net/bonding/bond_main.c:2965
stack backtrace:
CPU: 0 UID: 0 PID: 49 Comm: kworker/u8:3 Not tainted 6.16.0-rc7-syzkaller-gafd8c2c9e2e2 #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
Workqueue: bond0 bond_mii_monitor
Call Trace:
dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120
lockdep_rcu_suspicious+0x140/0x1d0 kernel/locking/lockdep.c:6871
dev_reset_queue+0x88/0x1b0 net/sched/sch_generic.c:1302
netdev_for_each_tx_queue include/linux/netdevice.h:2655 [inline]
dev_deactivate_many+0x720/0xd40 net/sched/sch_generic.c:1376
dev_deactivate+0x118/0x1b0 net/sched/sch_generic.c:1399
linkwatch_do_dev+0x10f/0x170 net/core/link_watch.c:184
ethtool_op_get_link+0x15/0x70 net/ethtool/ioctl.c:63
bond_check_dev_link+0x444/0x6c0 drivers/net/bonding/bond_main.c:863
bond_miimon_inspect drivers/net/bonding/bond_main.c:2745 [inline]
bond_mii_monitor+0x428/0x2e00 drivers/net/bonding/bond_main.c:2967
process_one_work kernel/workqueue.c:3238 [inline]
process_scheduled_works+0xae1/0x17b0 kernel/workqueue.c:3321
worker_thread+0x8a0/0xda0 kernel/workqueue.c:3402
kthread+0x70e/0x8a0 kernel/kthread.c:464
ret_from_fork+0x3fc/0x770 arch/x86/kernel/process.c:148
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
=============================
WARNING: suspicious RCU usage
6.16.0-rc7-syzkaller-gafd8c2c9e2e2 #0 Not tainted
-----------------------------
net/sched/sch_generic.c:1333 suspicious rcu_dereference_protected() usage!
other info that might help us debug this:
rcu_scheduler_active = 2, debug_locks = 1
3 locks held by kworker/u8:3/49:
#0: ffff888020af8948 ((wq_completion)bond0){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3213 [inline]
#0: ffff888020af8948 ((wq_completion)bond0){+.+.}-{0:0}, at: process_scheduled_works+0x9b4/0x17b0 kernel/workqueue.c:3321
#1: ffffc90000b97bc0 ((work_completion)(&(&bond->mii_work)->work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3214 [inline]
#1: ffffc90000b97bc0 ((work_completion)(&(&bond->mii_work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x9ef/0x17b0 kernel/workqueue.c:3321
#2: ffffffff8e13f0e0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:331 [inline]
#2: ffffffff8e13f0e0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:841 [inline]
#2: ffffffff8e13f0e0 (rcu_read_lock){....}-{1:3}, at: bond_mii_monitor+0x153/0x2e00 drivers/net/bonding/bond_main.c:2965
stack backtrace:
CPU: 0 UID: 0 PID: 49 Comm: kworker/u8:3 Not tainted 6.16.0-rc7-syzkaller-gafd8c2c9e2e2 #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
Workqueue: bond0 bond_mii_monitor
Call Trace:
dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120
lockdep_rcu_suspicious+0x140/0x1d0 kernel/locking/lockdep.c:6871
some_qdisc_is_busy net/sched/sch_generic.c:1333 [inline]
dev_deactivate_many+0xa22/0xd40 net/sched/sch_generic.c:1384
dev_deactivate+0x118/0x1b0 net/sched/sch_generic.c:1399
linkwatch_do_dev+0x10f/0x170 net/core/link_watch.c:184
ethtool_op_get_link+0x15/0x70 net/ethtool/ioctl.c:63
bond_check_dev_link+0x444/0x6c0 drivers/net/bonding/bond_main.c:863
bond_miimon_inspect drivers/net/bonding/bond_main.c:2745 [inline]
bond_mii_monitor+0x428/0x2e00 drivers/net/bonding/bond_main.c:2967
process_one_work kernel/workqueue.c:3238 [inline]
process_scheduled_works+0xae1/0x17b0 kernel/workqueue.c:3321
worker_thread+0x8a0/0xda0 kernel/workqueue.c:3402
kthread+0x70e/0x8a0 kernel/kthread.c:464
ret_from_fork+0x3fc/0x770 arch/x86/kernel/process.c:148
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
------------[ cut here ]------------
RTNL: assertion failed at ./include/net/netdev_lock.h (72)
WARNING: CPU: 0 PID: 49 at ./include/net/netdev_lock.h:72 netdev_ops_assert_locked include/net/netdev_lock.h:72 [inline]
WARNING: CPU: 0 PID: 49 at ./include/net/netdev_lock.h:72 netdev_ops_assert_locked_or_invisible include/net/netdev_lock.h:80 [inline]
WARNING: CPU: 0 PID: 49 at ./include/net/netdev_lock.h:72 netif_state_change+0x317/0x3a0 net/core/dev.c:1577
Modules linked in:
CPU: 0 UID: 0 PID: 49 Comm: kworker/u8:3 Not tainted 6.16.0-rc7-syzkaller-gafd8c2c9e2e2 #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
Workqueue: bond0 bond_mii_monitor
RIP: 0010:netdev_ops_assert_locked include/net/netdev_lock.h:72 [inline]
RIP: 0010:netdev_ops_assert_locked_or_invisible include/net/netdev_lock.h:80 [inline]
RIP: 0010:netif_state_change+0x317/0x3a0 net/core/dev.c:1577
Code: 2f ff ff ff e8 8a 3d 6c f8 c6 05 88 eb 37 06 01 90 48 c7 c7 40 cc 92 8c 48 c7 c6 32 e6 9d 8d ba 48 00 00 00 e8 da 2c 30 f8 90 <0f> 0b 90 90 e9 00 ff ff ff 44 89 f1 80 e1 07 38 c1 0f 8c 67 fd ff
RSP: 0018:ffffc90000b975a0 EFLAGS: 00010246
RAX: 019781d0e9249700 RBX: ffff888028730000 RCX: ffff888021acbc00
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000002
RBP: ffffc90000b97670 R08: ffff8880b8624293 R09: 1ffff110170c4852
R10: dffffc0000000000 R11: ffffed10170c4853 R12: 0000000000000000
R13: 1ffff92000172eb8 R14: 0000000000000000 R15: dffffc0000000000
FS: 0000000000000000(0000) GS:ffff888125c23000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f9d2d000286 CR3: 000000005d77a000 CR4: 00000000003526f0
Call Trace:
linkwatch_do_dev+0x117/0x170 net/core/link_watch.c:186
ethtool_op_get_link+0x15/0x70 net/ethtool/ioctl.c:63
bond_check_dev_link+0x444/0x6c0 drivers/net/bonding/bond_main.c:863
bond_miimon_inspect drivers/net/bonding/bond_main.c:2745 [inline]
bond_mii_monitor+0x428/0x2e00 drivers/net/bonding/bond_main.c:2967
process_one_work kernel/workqueue.c:3238 [inline]
process_scheduled_works+0xae1/0x17b0 kernel/workqueue.c:3321
worker_thread+0x8a0/0xda0 kernel/workqueue.c:3402
kthread+0x70e/0x8a0 kernel/kthread.c:464
ret_from_fork+0x3fc/0x770 arch/x86/kernel/process.c:148
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245