=============================
WARNING: suspicious RCU usage
6.10.0-rc6-syzkaller-gc562ba719df5 #0 Not tainted
-----------------------------
net/sched/sch_generic.c:1283 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/u8:1/9915:
 #0: ff600000133b1148 ((wq_completion)bond0#3){+.+.}-{0:0}, at: process_one_work+0x826/0x1d5c kernel/workqueue.c:3223
 #1: ff2000000075bc90 ((work_completion)(&(&bond->mii_work)->work)){+.+.}-{0:0}, at: process_one_work+0x852/0x1d5c kernel/workqueue.c:3223
 #2: ffffffff87dc3d00 (rcu_read_lock){....}-{1:2}, at: bond_mii_monitor+0x11a/0x29a8 drivers/net/bonding/bond_main.c:2821

stack backtrace:
CPU: 1 PID: 9915 Comm: kworker/u8:1 Not tainted 6.10.0-rc6-syzkaller-gc562ba719df5 #0
Hardware name: riscv-virtio,qemu (DT)
Workqueue: bond0 bond_mii_monitor
Call Trace:
[<ffffffff8000f6fc>] dump_backtrace+0x2e/0x3c arch/riscv/kernel/stacktrace.c:130
[<ffffffff85df2034>] show_stack+0x34/0x40 arch/riscv/kernel/stacktrace.c:136
[<ffffffff85e4d502>] __dump_stack lib/dump_stack.c:88 [inline]
[<ffffffff85e4d502>] dump_stack_lvl+0x122/0x196 lib/dump_stack.c:114
[<ffffffff85e4d592>] dump_stack+0x1c/0x24 lib/dump_stack.c:123
[<ffffffff802238bc>] lockdep_rcu_suspicious+0x264/0x3c0 kernel/locking/lockdep.c:6712
[<ffffffff84d80c9e>] dev_deactivate_queue+0x188/0x1ac net/sched/sch_generic.c:1283
[<ffffffff84d8b664>] netdev_for_each_tx_queue include/linux/netdevice.h:2504 [inline]
[<ffffffff84d8b664>] dev_deactivate_many+0xe6/0xbfa net/sched/sch_generic.c:1356
[<ffffffff84d8c26c>] dev_deactivate+0xf4/0x1c6 net/sched/sch_generic.c:1396
[<ffffffff84c359cc>] linkwatch_do_dev+0x104/0x154 net/core/link_watch.c:175
[<ffffffff84c362de>] linkwatch_sync_dev+0x14a/0x1da net/core/link_watch.c:263
[<ffffffff84f6d87a>] ethtool_op_get_link+0x1e/0x54 net/ethtool/ioctl.c:62
[<ffffffff82d3ca2c>] bond_check_dev_link+0x1ae/0x386 drivers/net/bonding/bond_main.c:757
[<ffffffff82d5e5be>] bond_miimon_inspect drivers/net/bonding/bond_main.c:2604 [inline]
[<ffffffff82d5e5be>] bond_mii_monitor+0x3de/0x29a8 drivers/net/bonding/bond_main.c:2826
[<ffffffff8012d3ba>] process_one_work+0x938/0x1d5c kernel/workqueue.c:3248
[<ffffffff8012ed9c>] process_scheduled_works kernel/workqueue.c:3329 [inline]
[<ffffffff8012ed9c>] worker_thread+0x5be/0xdec kernel/workqueue.c:3409
[<ffffffff8014d93c>] kthread+0x28c/0x3a6 kernel/kthread.c:389
[<ffffffff85e72a76>] ret_from_fork+0xe/0x1c arch/riscv/kernel/entry.S:232

=============================
WARNING: suspicious RCU usage
6.10.0-rc6-syzkaller-gc562ba719df5 #0 Not tainted
-----------------------------
include/linux/rtnetlink.h:100 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/u8:1/9915:
 #0: ff600000133b1148 ((wq_completion)bond0#3){+.+.}-{0:0}, at: process_one_work+0x826/0x1d5c kernel/workqueue.c:3223
 #1: ff2000000075bc90 ((work_completion)(&(&bond->mii_work)->work)){+.+.}-{0:0}, at: process_one_work+0x852/0x1d5c kernel/workqueue.c:3223
 #2: ffffffff87dc3d00 (rcu_read_lock){....}-{1:2}, at: bond_mii_monitor+0x11a/0x29a8 drivers/net/bonding/bond_main.c:2821

stack backtrace:
CPU: 1 PID: 9915 Comm: kworker/u8:1 Not tainted 6.10.0-rc6-syzkaller-gc562ba719df5 #0
Hardware name: riscv-virtio,qemu (DT)
Workqueue: bond0 bond_mii_monitor
Call Trace:
[<ffffffff8000f6fc>] dump_backtrace+0x2e/0x3c arch/riscv/kernel/stacktrace.c:130
[<ffffffff85df2034>] show_stack+0x34/0x40 arch/riscv/kernel/stacktrace.c:136
[<ffffffff85e4d502>] __dump_stack lib/dump_stack.c:88 [inline]
[<ffffffff85e4d502>] dump_stack_lvl+0x122/0x196 lib/dump_stack.c:114
[<ffffffff85e4d592>] dump_stack+0x1c/0x24 lib/dump_stack.c:123
[<ffffffff802238bc>] lockdep_rcu_suspicious+0x264/0x3c0 kernel/locking/lockdep.c:6712
[<ffffffff84d8bee8>] dev_ingress_queue include/linux/rtnetlink.h:100 [inline]
[<ffffffff84d8bee8>] dev_deactivate_many+0x96a/0xbfa net/sched/sch_generic.c:1358
[<ffffffff84d8c26c>] dev_deactivate+0xf4/0x1c6 net/sched/sch_generic.c:1396
[<ffffffff84c359cc>] linkwatch_do_dev+0x104/0x154 net/core/link_watch.c:175
[<ffffffff84c362de>] linkwatch_sync_dev+0x14a/0x1da net/core/link_watch.c:263
[<ffffffff84f6d87a>] ethtool_op_get_link+0x1e/0x54 net/ethtool/ioctl.c:62
[<ffffffff82d3ca2c>] bond_check_dev_link+0x1ae/0x386 drivers/net/bonding/bond_main.c:757
[<ffffffff82d5e5be>] bond_miimon_inspect drivers/net/bonding/bond_main.c:2604 [inline]
[<ffffffff82d5e5be>] bond_mii_monitor+0x3de/0x29a8 drivers/net/bonding/bond_main.c:2826
[<ffffffff8012d3ba>] process_one_work+0x938/0x1d5c kernel/workqueue.c:3248
[<ffffffff8012ed9c>] process_scheduled_works kernel/workqueue.c:3329 [inline]
[<ffffffff8012ed9c>] worker_thread+0x5be/0xdec kernel/workqueue.c:3409
[<ffffffff8014d93c>] kthread+0x28c/0x3a6 kernel/kthread.c:389
[<ffffffff85e72a76>] ret_from_fork+0xe/0x1c arch/riscv/kernel/entry.S:232
BUG: sleeping function called from invalid context at net/core/dev.c:11125
in_atomic(): 0, irqs_disabled(): 0, non_block: 0, pid: 9915, name: kworker/u8:1
preempt_count: 0, expected: 0
RCU nest depth: 1, expected: 0
3 locks held by kworker/u8:1/9915:
 #0: ff600000133b1148 ((wq_completion)bond0#3){+.+.}-{0:0}, at: process_one_work+0x826/0x1d5c kernel/workqueue.c:3223
 #1: ff2000000075bc90 ((work_completion)(&(&bond->mii_work)->work)){+.+.}-{0:0}, at: process_one_work+0x852/0x1d5c kernel/workqueue.c:3223
 #2: ffffffff87dc3d00 (rcu_read_lock){....}-{1:2}, at: bond_mii_monitor+0x11a/0x29a8 drivers/net/bonding/bond_main.c:2821
CPU: 0 PID: 9915 Comm: kworker/u8:1 Not tainted 6.10.0-rc6-syzkaller-gc562ba719df5 #0
Hardware name: riscv-virtio,qemu (DT)
Workqueue: bond0 bond_mii_monitor
Call Trace:
[<ffffffff8000f6fc>] dump_backtrace+0x2e/0x3c arch/riscv/kernel/stacktrace.c:130
[<ffffffff85df2034>] show_stack+0x34/0x40 arch/riscv/kernel/stacktrace.c:136
[<ffffffff85e4d502>] __dump_stack lib/dump_stack.c:88 [inline]
[<ffffffff85e4d502>] dump_stack_lvl+0x122/0x196 lib/dump_stack.c:114
[<ffffffff85e4d592>] dump_stack+0x1c/0x24 lib/dump_stack.c:123
[<ffffffff80178e3e>] __might_resched+0x5a0/0x5fc kernel/sched/core.c:10196
[<ffffffff80178f20>] __might_sleep+0x86/0xca kernel/sched/core.c:10125
[<ffffffff84ba4ee0>] synchronize_net+0x28/0x82 net/core/dev.c:11125
[<ffffffff84d8b8c8>] dev_deactivate_many+0x34a/0xbfa net/sched/sch_generic.c:1370
[<ffffffff84d8c26c>] dev_deactivate+0xf4/0x1c6 net/sched/sch_generic.c:1396
[<ffffffff84c359cc>] linkwatch_do_dev+0x104/0x154 net/core/link_watch.c:175
[<ffffffff84c362de>] linkwatch_sync_dev+0x14a/0x1da net/core/link_watch.c:263
[<ffffffff84f6d87a>] ethtool_op_get_link+0x1e/0x54 net/ethtool/ioctl.c:62
[<ffffffff82d3ca2c>] bond_check_dev_link+0x1ae/0x386 drivers/net/bonding/bond_main.c:757
[<ffffffff82d5e5be>] bond_miimon_inspect drivers/net/bonding/bond_main.c:2604 [inline]
[<ffffffff82d5e5be>] bond_mii_monitor+0x3de/0x29a8 drivers/net/bonding/bond_main.c:2826
[<ffffffff8012d3ba>] process_one_work+0x938/0x1d5c kernel/workqueue.c:3248
[<ffffffff8012ed9c>] process_scheduled_works kernel/workqueue.c:3329 [inline]
[<ffffffff8012ed9c>] worker_thread+0x5be/0xdec kernel/workqueue.c:3409
[<ffffffff8014d93c>] kthread+0x28c/0x3a6 kernel/kthread.c:389
[<ffffffff85e72a76>] ret_from_fork+0xe/0x1c arch/riscv/kernel/entry.S:232

=============================
WARNING: suspicious RCU usage
6.10.0-rc6-syzkaller-gc562ba719df5 #0 Tainted: G        W         
-----------------------------
kernel/rcu/tree.c:3980 Illegal synchronize_rcu() in RCU read-side critical section!

other info that might help us debug this:


rcu_scheduler_active = 2, debug_locks = 1
3 locks held by kworker/u8:1/9915:
 #0: ff600000133b1148 ((wq_completion)bond0#3){+.+.}-{0:0}, at: process_one_work+0x826/0x1d5c kernel/workqueue.c:3223
 #1: ff2000000075bc90 ((work_completion)(&(&bond->mii_work)->work)){+.+.}-{0:0}, at: process_one_work+0x852/0x1d5c kernel/workqueue.c:3223
 #2: ffffffff87dc3d00 (rcu_read_lock){....}-{1:2}, at: bond_mii_monitor+0x11a/0x29a8 drivers/net/bonding/bond_main.c:2821

stack backtrace:
CPU: 0 PID: 9915 Comm: kworker/u8:1 Tainted: G        W          6.10.0-rc6-syzkaller-gc562ba719df5 #0
Hardware name: riscv-virtio,qemu (DT)
Workqueue: bond0 bond_mii_monitor
Call Trace:
[<ffffffff8000f6fc>] dump_backtrace+0x2e/0x3c arch/riscv/kernel/stacktrace.c:130
[<ffffffff85df2034>] show_stack+0x34/0x40 arch/riscv/kernel/stacktrace.c:136
[<ffffffff85e4d502>] __dump_stack lib/dump_stack.c:88 [inline]
[<ffffffff85e4d502>] dump_stack_lvl+0x122/0x196 lib/dump_stack.c:114
[<ffffffff85e4d592>] dump_stack+0x1c/0x24 lib/dump_stack.c:123
[<ffffffff802238bc>] lockdep_rcu_suspicious+0x264/0x3c0 kernel/locking/lockdep.c:6712
[<ffffffff802c8c0e>] synchronize_rcu+0x1ee/0x28c kernel/rcu/tree.c:3980
[<ffffffff84ba4f28>] synchronize_net+0x70/0x82 net/core/dev.c:11129
[<ffffffff84d8b8c8>] dev_deactivate_many+0x34a/0xbfa net/sched/sch_generic.c:1370
[<ffffffff84d8c26c>] dev_deactivate+0xf4/0x1c6 net/sched/sch_generic.c:1396
[<ffffffff84c359cc>] linkwatch_do_dev+0x104/0x154 net/core/link_watch.c:175
[<ffffffff84c362de>] linkwatch_sync_dev+0x14a/0x1da net/core/link_watch.c:263
[<ffffffff84f6d87a>] ethtool_op_get_link+0x1e/0x54 net/ethtool/ioctl.c:62
[<ffffffff82d3ca2c>] bond_check_dev_link+0x1ae/0x386 drivers/net/bonding/bond_main.c:757
[<ffffffff82d5e5be>] bond_miimon_inspect drivers/net/bonding/bond_main.c:2604 [inline]
[<ffffffff82d5e5be>] bond_mii_monitor+0x3de/0x29a8 drivers/net/bonding/bond_main.c:2826
[<ffffffff8012d3ba>] process_one_work+0x938/0x1d5c kernel/workqueue.c:3248
[<ffffffff8012ed9c>] process_scheduled_works kernel/workqueue.c:3329 [inline]
[<ffffffff8012ed9c>] worker_thread+0x5be/0xdec kernel/workqueue.c:3409
[<ffffffff8014d93c>] kthread+0x28c/0x3a6 kernel/kthread.c:389
[<ffffffff85e72a76>] ret_from_fork+0xe/0x1c arch/riscv/kernel/entry.S:232

=============================
WARNING: suspicious RCU usage
6.10.0-rc6-syzkaller-gc562ba719df5 #0 Tainted: G        W         
-----------------------------
kernel/rcu/tree_exp.h:909 Illegal synchronize_rcu_expedited() in RCU read-side critical section!

other info that might help us debug this:


rcu_scheduler_active = 2, debug_locks = 1
3 locks held by kworker/u8:1/9915:
 #0: ff600000133b1148 ((wq_completion)bond0#3){+.+.}-{0:0}, at: process_one_work+0x826/0x1d5c kernel/workqueue.c:3223
 #1: ff2000000075bc90 ((work_completion)(&(&bond->mii_work)->work)){+.+.}-{0:0}, at: process_one_work+0x852/0x1d5c kernel/workqueue.c:3223
 #2: ffffffff87dc3d00 (rcu_read_lock){....}-{1:2}, at: bond_mii_monitor+0x11a/0x29a8 drivers/net/bonding/bond_main.c:2821

stack backtrace:
CPU: 0 PID: 9915 Comm: kworker/u8:1 Tainted: G        W          6.10.0-rc6-syzkaller-gc562ba719df5 #0
Hardware name: riscv-virtio,qemu (DT)
Workqueue: bond0 bond_mii_monitor
Call Trace:
[<ffffffff8000f6fc>] dump_backtrace+0x2e/0x3c arch/riscv/kernel/stacktrace.c:130
[<ffffffff85df2034>] show_stack+0x34/0x40 arch/riscv/kernel/stacktrace.c:136
[<ffffffff85e4d502>] __dump_stack lib/dump_stack.c:88 [inline]
[<ffffffff85e4d502>] dump_stack_lvl+0x122/0x196 lib/dump_stack.c:114
[<ffffffff85e4d592>] dump_stack+0x1c/0x24 lib/dump_stack.c:123
[<ffffffff802238bc>] lockdep_rcu_suspicious+0x264/0x3c0 kernel/locking/lockdep.c:6712
[<ffffffff802c881c>] synchronize_rcu_expedited+0x1e6/0x3ea kernel/rcu/tree_exp.h:909
[<ffffffff802c8c44>] synchronize_rcu+0x224/0x28c kernel/rcu/tree.c:3986
[<ffffffff84ba4f28>] synchronize_net+0x70/0x82 net/core/dev.c:11129
[<ffffffff84d8b8c8>] dev_deactivate_many+0x34a/0xbfa net/sched/sch_generic.c:1370
[<ffffffff84d8c26c>] dev_deactivate+0xf4/0x1c6 net/sched/sch_generic.c:1396
[<ffffffff84c359cc>] linkwatch_do_dev+0x104/0x154 net/core/link_watch.c:175
[<ffffffff84c362de>] linkwatch_sync_dev+0x14a/0x1da net/core/link_watch.c:263
[<ffffffff84f6d87a>] ethtool_op_get_link+0x1e/0x54 net/ethtool/ioctl.c:62
[<ffffffff82d3ca2c>] bond_check_dev_link+0x1ae/0x386 drivers/net/bonding/bond_main.c:757
[<ffffffff82d5e5be>] bond_miimon_inspect drivers/net/bonding/bond_main.c:2604 [inline]
[<ffffffff82d5e5be>] bond_mii_monitor+0x3de/0x29a8 drivers/net/bonding/bond_main.c:2826
[<ffffffff8012d3ba>] process_one_work+0x938/0x1d5c kernel/workqueue.c:3248
[<ffffffff8012ed9c>] process_scheduled_works kernel/workqueue.c:3329 [inline]
[<ffffffff8012ed9c>] worker_thread+0x5be/0xdec kernel/workqueue.c:3409
[<ffffffff8014d93c>] kthread+0x28c/0x3a6 kernel/kthread.c:389
[<ffffffff85e72a76>] ret_from_fork+0xe/0x1c arch/riscv/kernel/entry.S:232
------------[ cut here ]------------
Voluntary context switch within RCU read-side critical section!