=============================
WARNING: suspicious RCU usage
6.14.0-syzkaller-10514-g7f2ff7b62617 #0 Not tainted
-----------------------------
net/sched/sch_generic.c:1285 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/u8:10/6810:
 #0: ffff888031b5e148 ((wq_completion)bond0#5){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3213 [inline]
 #0: ffff888031b5e148 ((wq_completion)bond0#5){+.+.}-{0:0}, at: process_scheduled_works+0x990/0x18e0 kernel/workqueue.c:3319
 #1: ffffc900043bfc60 ((work_completion)(&(&bond->mii_work)->work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3214 [inline]
 #1: ffffc900043bfc60 ((work_completion)(&(&bond->mii_work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x9cb/0x18e0 kernel/workqueue.c:3319
 #2: ffffffff8ed3b2e0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:331 [inline]
 #2: ffffffff8ed3b2e0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:841 [inline]
 #2: ffffffff8ed3b2e0 (rcu_read_lock){....}-{1:3}, at: bond_mii_monitor+0x17f/0x3170 drivers/net/bonding/bond_main.c:2954

stack backtrace:
CPU: 0 UID: 0 PID: 6810 Comm: kworker/u8:10 Not tainted 6.14.0-syzkaller-10514-g7f2ff7b62617 #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
Workqueue: bond0 bond_mii_monitor
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
 lockdep_rcu_suspicious+0x175/0x200 kernel/locking/lockdep.c:6862
 dev_deactivate_queue+0x8f/0x1b0 net/sched/sch_generic.c:1285
 netdev_for_each_tx_queue include/linux/netdevice.h:2650 [inline]
 dev_deactivate_many+0x14c/0xca0 net/sched/sch_generic.c:1361
 dev_deactivate+0x186/0x280 net/sched/sch_generic.c:1398
 linkwatch_do_dev+0x10a/0x170 net/core/link_watch.c:184
 ethtool_op_get_link+0x15/0x60 net/ethtool/ioctl.c:63
 bond_check_dev_link+0x1fb/0x4b0 drivers/net/bonding/bond_main.c:864
 bond_miimon_inspect drivers/net/bonding/bond_main.c:2734 [inline]
 bond_mii_monitor+0x49d/0x3170 drivers/net/bonding/bond_main.c:2956
 process_one_work kernel/workqueue.c:3238 [inline]
 process_scheduled_works+0xac3/0x18e0 kernel/workqueue.c:3319
 worker_thread+0x870/0xd50 kernel/workqueue.c:3400
 kthread+0x7b7/0x940 kernel/kthread.c:464
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:153
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>

=============================
WARNING: suspicious RCU usage
6.14.0-syzkaller-10514-g7f2ff7b62617 #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/u8:10/6810:
 #0: ffff888031b5e148 ((wq_completion)bond0#5){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3213 [inline]
 #0: ffff888031b5e148 ((wq_completion)bond0#5){+.+.}-{0:0}, at: process_scheduled_works+0x990/0x18e0 kernel/workqueue.c:3319
 #1: ffffc900043bfc60 ((work_completion)(&(&bond->mii_work)->work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3214 [inline]
 #1: ffffc900043bfc60 ((work_completion)(&(&bond->mii_work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x9cb/0x18e0 kernel/workqueue.c:3319
 #2: ffffffff8ed3b2e0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:331 [inline]
 #2: ffffffff8ed3b2e0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:841 [inline]
 #2: ffffffff8ed3b2e0 (rcu_read_lock){....}-{1:3}, at: bond_mii_monitor+0x17f/0x3170 drivers/net/bonding/bond_main.c:2954

stack backtrace:
CPU: 1 UID: 0 PID: 6810 Comm: kworker/u8:10 Not tainted 6.14.0-syzkaller-10514-g7f2ff7b62617 #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
Workqueue: bond0 bond_mii_monitor
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
 lockdep_rcu_suspicious+0x175/0x200 kernel/locking/lockdep.c:6862
 dev_ingress_queue include/linux/rtnetlink.h:163 [inline]
 dev_deactivate_many+0x228/0xca0 net/sched/sch_generic.c:1363
 dev_deactivate+0x186/0x280 net/sched/sch_generic.c:1398
 linkwatch_do_dev+0x10a/0x170 net/core/link_watch.c:184
 ethtool_op_get_link+0x15/0x60 net/ethtool/ioctl.c:63
 bond_check_dev_link+0x1fb/0x4b0 drivers/net/bonding/bond_main.c:864
 bond_miimon_inspect drivers/net/bonding/bond_main.c:2734 [inline]
 bond_mii_monitor+0x49d/0x3170 drivers/net/bonding/bond_main.c:2956
 process_one_work kernel/workqueue.c:3238 [inline]
 process_scheduled_works+0xac3/0x18e0 kernel/workqueue.c:3319
 worker_thread+0x870/0xd50 kernel/workqueue.c:3400
 kthread+0x7b7/0x940 kernel/kthread.c:464
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:153
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>

=============================
WARNING: suspicious RCU usage
6.14.0-syzkaller-10514-g7f2ff7b62617 #0 Not tainted
-----------------------------
net/sched/sch_generic.c:1301 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/u8:10/6810:
 #0: ffff888031b5e148 ((wq_completion)bond0#5){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3213 [inline]
 #0: ffff888031b5e148 ((wq_completion)bond0#5){+.+.}-{0:0}, at: process_scheduled_works+0x990/0x18e0 kernel/workqueue.c:3319
 #1: ffffc900043bfc60 ((work_completion)(&(&bond->mii_work)->work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3214 [inline]
 #1: ffffc900043bfc60 ((work_completion)(&(&bond->mii_work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x9cb/0x18e0 kernel/workqueue.c:3319
 #2: ffffffff8ed3b2e0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:331 [inline]
 #2: ffffffff8ed3b2e0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:841 [inline]
 #2: ffffffff8ed3b2e0 (rcu_read_lock){....}-{1:3}, at: bond_mii_monitor+0x17f/0x3170 drivers/net/bonding/bond_main.c:2954

stack backtrace:
CPU: 1 UID: 0 PID: 6810 Comm: kworker/u8:10 Not tainted 6.14.0-syzkaller-10514-g7f2ff7b62617 #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
Workqueue: bond0 bond_mii_monitor
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
 lockdep_rcu_suspicious+0x175/0x200 kernel/locking/lockdep.c:6862
 dev_reset_queue+0x88/0x1b0 net/sched/sch_generic.c:1301
 netdev_for_each_tx_queue include/linux/netdevice.h:2650 [inline]
 dev_deactivate_many+0x61d/0xca0 net/sched/sch_generic.c:1375
 dev_deactivate+0x186/0x280 net/sched/sch_generic.c:1398
 linkwatch_do_dev+0x10a/0x170 net/core/link_watch.c:184
 ethtool_op_get_link+0x15/0x60 net/ethtool/ioctl.c:63
 bond_check_dev_link+0x1fb/0x4b0 drivers/net/bonding/bond_main.c:864
 bond_miimon_inspect drivers/net/bonding/bond_main.c:2734 [inline]
 bond_mii_monitor+0x49d/0x3170 drivers/net/bonding/bond_main.c:2956
 process_one_work kernel/workqueue.c:3238 [inline]
 process_scheduled_works+0xac3/0x18e0 kernel/workqueue.c:3319
 worker_thread+0x870/0xd50 kernel/workqueue.c:3400
 kthread+0x7b7/0x940 kernel/kthread.c:464
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:153
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>

=============================
WARNING: suspicious RCU usage
6.14.0-syzkaller-10514-g7f2ff7b62617 #0 Not tainted
-----------------------------
net/sched/sch_generic.c:1332 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/u8:10/6810:
 #0: ffff888031b5e148 ((wq_completion)bond0#5){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3213 [inline]
 #0: ffff888031b5e148 ((wq_completion)bond0#5){+.+.}-{0:0}, at: process_scheduled_works+0x990/0x18e0 kernel/workqueue.c:3319
 #1: ffffc900043bfc60 ((work_completion)(&(&bond->mii_work)->work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3214 [inline]
 #1: ffffc900043bfc60 ((work_completion)(&(&bond->mii_work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x9cb/0x18e0 kernel/workqueue.c:3319
 #2: ffffffff8ed3b2e0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:331 [inline]
 #2: ffffffff8ed3b2e0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:841 [inline]
 #2: ffffffff8ed3b2e0 (rcu_read_lock){....}-{1:3}, at: bond_mii_monitor+0x17f/0x3170 drivers/net/bonding/bond_main.c:2954

stack backtrace:
CPU: 1 UID: 0 PID: 6810 Comm: kworker/u8:10 Not tainted 6.14.0-syzkaller-10514-g7f2ff7b62617 #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
Workqueue: bond0 bond_mii_monitor
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
 lockdep_rcu_suspicious+0x175/0x200 kernel/locking/lockdep.c:6862
 some_qdisc_is_busy net/sched/sch_generic.c:1332 [inline]
 dev_deactivate_many+0x93b/0xca0 net/sched/sch_generic.c:1383
 dev_deactivate+0x186/0x280 net/sched/sch_generic.c:1398
 linkwatch_do_dev+0x10a/0x170 net/core/link_watch.c:184
 ethtool_op_get_link+0x15/0x60 net/ethtool/ioctl.c:63
 bond_check_dev_link+0x1fb/0x4b0 drivers/net/bonding/bond_main.c:864
 bond_miimon_inspect drivers/net/bonding/bond_main.c:2734 [inline]
 bond_mii_monitor+0x49d/0x3170 drivers/net/bonding/bond_main.c:2956
 process_one_work kernel/workqueue.c:3238 [inline]
 process_scheduled_works+0xac3/0x18e0 kernel/workqueue.c:3319
 worker_thread+0x870/0xd50 kernel/workqueue.c:3400
 kthread+0x7b7/0x940 kernel/kthread.c:464
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:153
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
BUG: sleeping function called from invalid context at kernel/locking/rwsem.c:1523
in_atomic(): 0, irqs_disabled(): 0, non_block: 0, pid: 6810, name: kworker/u8:10
preempt_count: 0, expected: 0
RCU nest depth: 1, expected: 0
3 locks held by kworker/u8:10/6810:
 #0: ffff888031b5e148 ((wq_completion)bond0#5){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3213 [inline]
 #0: ffff888031b5e148 ((wq_completion)bond0#5){+.+.}-{0:0}, at: process_scheduled_works+0x990/0x18e0 kernel/workqueue.c:3319
 #1: ffffc900043bfc60 ((work_completion)(&(&bond->mii_work)->work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3214 [inline]
 #1: ffffc900043bfc60 ((work_completion)(&(&bond->mii_work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x9cb/0x18e0 kernel/workqueue.c:3319
 #2: ffffffff8ed3b2e0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:331 [inline]
 #2: ffffffff8ed3b2e0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:841 [inline]
 #2: ffffffff8ed3b2e0 (rcu_read_lock){....}-{1:3}, at: bond_mii_monitor+0x17f/0x3170 drivers/net/bonding/bond_main.c:2954
CPU: 1 UID: 0 PID: 6810 Comm: kworker/u8:10 Not tainted 6.14.0-syzkaller-10514-g7f2ff7b62617 #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
Workqueue: bond0 bond_mii_monitor
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
 __might_resched+0x558/0x6c0 kernel/sched/core.c:8818
 down_read+0x90/0xa50 kernel/locking/rwsem.c:1523
 wireless_nlevent_flush net/wireless/wext-core.c:351 [inline]
 wext_netdev_notifier_call+0x1f/0x120 net/wireless/wext-core.c:371
 notifier_call_chain+0x1a5/0x3f0 kernel/notifier.c:85
 netdev_state_change+0x123/0x1a0 net/core/dev.c:1536
 linkwatch_do_dev+0x112/0x170 net/core/link_watch.c:186
 ethtool_op_get_link+0x15/0x60 net/ethtool/ioctl.c:63
 bond_check_dev_link+0x1fb/0x4b0 drivers/net/bonding/bond_main.c:864
 bond_miimon_inspect drivers/net/bonding/bond_main.c:2734 [inline]
 bond_mii_monitor+0x49d/0x3170 drivers/net/bonding/bond_main.c:2956
 process_one_work kernel/workqueue.c:3238 [inline]
 process_scheduled_works+0xac3/0x18e0 kernel/workqueue.c:3319
 worker_thread+0x870/0xd50 kernel/workqueue.c:3400
 kthread+0x7b7/0x940 kernel/kthread.c:464
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:153
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>

=============================
[ BUG: Invalid wait context ]
6.14.0-syzkaller-10514-g7f2ff7b62617 #0 Tainted: G        W          
-----------------------------
kworker/u8:10/6810 is trying to lock:
ffffffff900e6350 (net_rwsem){++++}-{4:4}, at: wireless_nlevent_flush net/wireless/wext-core.c:351 [inline]
ffffffff900e6350 (net_rwsem){++++}-{4:4}, at: wext_netdev_notifier_call+0x1f/0x120 net/wireless/wext-core.c:371
other info that might help us debug this:
context-{5:5}
3 locks held by kworker/u8:10/6810:
 #0: ffff888031b5e148 ((wq_completion)bond0#5){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3213 [inline]
 #0: ffff888031b5e148 ((wq_completion)bond0#5){+.+.}-{0:0}, at: process_scheduled_works+0x990/0x18e0 kernel/workqueue.c:3319
 #1: ffffc900043bfc60 ((work_completion)(&(&bond->mii_work)->work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3214 [inline]
 #1: ffffc900043bfc60 ((work_completion)(&(&bond->mii_work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x9cb/0x18e0 kernel/workqueue.c:3319
 #2: ffffffff8ed3b2e0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:331 [inline]
 #2: ffffffff8ed3b2e0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:841 [inline]
 #2: ffffffff8ed3b2e0 (rcu_read_lock){....}-{1:3}, at: bond_mii_monitor+0x17f/0x3170 drivers/net/bonding/bond_main.c:2954
stack backtrace:
CPU: 1 UID: 0 PID: 6810 Comm: kworker/u8:10 Tainted: G        W           6.14.0-syzkaller-10514-g7f2ff7b62617 #0 PREEMPT(full) 
Tainted: [W]=WARN
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
Workqueue: bond0 bond_mii_monitor
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
 print_lock_invalid_wait_context kernel/locking/lockdep.c:4831 [inline]
 check_wait_context kernel/locking/lockdep.c:4903 [inline]
 __lock_acquire+0xc30/0xd80 kernel/locking/lockdep.c:5185
 lock_acquire+0x116/0x2f0 kernel/locking/lockdep.c:5866
 down_read+0xb3/0xa50 kernel/locking/rwsem.c:1524
 wireless_nlevent_flush net/wireless/wext-core.c:351 [inline]
 wext_netdev_notifier_call+0x1f/0x120 net/wireless/wext-core.c:371
 notifier_call_chain+0x1a5/0x3f0 kernel/notifier.c:85
 netdev_state_change+0x123/0x1a0 net/core/dev.c:1536
 linkwatch_do_dev+0x112/0x170 net/core/link_watch.c:186
 ethtool_op_get_link+0x15/0x60 net/ethtool/ioctl.c:63
 bond_check_dev_link+0x1fb/0x4b0 drivers/net/bonding/bond_main.c:864
 bond_miimon_inspect drivers/net/bonding/bond_main.c:2734 [inline]
 bond_mii_monitor+0x49d/0x3170 drivers/net/bonding/bond_main.c:2956
 process_one_work kernel/workqueue.c:3238 [inline]
 process_scheduled_works+0xac3/0x18e0 kernel/workqueue.c:3319
 worker_thread+0x870/0xd50 kernel/workqueue.c:3400
 kthread+0x7b7/0x940 kernel/kthread.c:464
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:153
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
BUG: sleeping function called from invalid context at kernel/locking/mutex.c:564
in_atomic(): 0, irqs_disabled(): 0, non_block: 0, pid: 6810, name: kworker/u8:10
preempt_count: 0, expected: 0
RCU nest depth: 1, expected: 0
INFO: lockdep is turned off.
CPU: 1 UID: 0 PID: 6810 Comm: kworker/u8:10 Tainted: G        W           6.14.0-syzkaller-10514-g7f2ff7b62617 #0 PREEMPT(full) 
Tainted: [W]=WARN
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
Workqueue: bond0 bond_mii_monitor
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
 __might_resched+0x558/0x6c0 kernel/sched/core.c:8818
 __mutex_lock_common kernel/locking/mutex.c:564 [inline]
 __mutex_lock+0x12c/0x10c0 kernel/locking/mutex.c:732
 tee_netdev_event+0x86/0x460 net/netfilter/xt_TEE.c:68
 notifier_call_chain+0x1a5/0x3f0 kernel/notifier.c:85
 netdev_state_change+0x123/0x1a0 net/core/dev.c:1536
 linkwatch_do_dev+0x112/0x170 net/core/link_watch.c:186
 ethtool_op_get_link+0x15/0x60 net/ethtool/ioctl.c:63
 bond_check_dev_link+0x1fb/0x4b0 drivers/net/bonding/bond_main.c:864
 bond_miimon_inspect drivers/net/bonding/bond_main.c:2734 [inline]
 bond_mii_monitor+0x49d/0x3170 drivers/net/bonding/bond_main.c:2956
 process_one_work kernel/workqueue.c:3238 [inline]
 process_scheduled_works+0xac3/0x18e0 kernel/workqueue.c:3319
 worker_thread+0x870/0xd50 kernel/workqueue.c:3400
 kthread+0x7b7/0x940 kernel/kthread.c:464
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:153
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>