=============================
WARNING: suspicious RCU usage
syzkaller #0 Not tainted
-----------------------------
net/sched/sch_generic.c:1288 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/u32:1/14:
#0: ffff8880349c6948 ((wq_completion)bond0#3){+.+.}-{0:0}, at: process_one_work+0x12a2/0x1b70 kernel/workqueue.c:3211
#1: ffffc90000117d10 ((work_completion)(&(&bond->mii_work)->work)){+.+.}-{0:0}, at: process_one_work+0x929/0x1b70 kernel/workqueue.c:3212
#2: ffffffff8e5c15a0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:331 [inline]
#2: ffffffff8e5c15a0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:841 [inline]
#2: ffffffff8e5c15a0 (rcu_read_lock){....}-{1:3}, at: bond_mii_monitor+0x134/0x2dc0 drivers/net/bonding/bond_main.c:2983
stack backtrace:
CPU: 1 UID: 0 PID: 14 Comm: kworker/u32:1 Not tainted syzkaller #0 PREEMPT(full)
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Workqueue: bond0 bond_mii_monitor
Call Trace:
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x16c/0x1f0 lib/dump_stack.c:120
lockdep_rcu_suspicious+0x166/0x260 kernel/locking/lockdep.c:6876
dev_deactivate_queue+0x1c0/0x210 net/sched/sch_generic.c:1288
netdev_for_each_tx_queue include/linux/netdevice.h:2660 [inline]
dev_deactivate_many+0x14b/0xd50 net/sched/sch_generic.c:1364
dev_deactivate+0xf8/0x1c0 net/sched/sch_generic.c:1401
linkwatch_do_dev+0x11e/0x160 net/core/link_watch.c:184
__linkwatch_sync_dev+0xfd/0x230 net/core/link_watch.c:282
ethtool_op_get_link+0x1d/0x70 net/ethtool/ioctl.c:63
bond_check_dev_link+0x3fc/0x710 drivers/net/bonding/bond_main.c:865
bond_miimon_inspect drivers/net/bonding/bond_main.c:2763 [inline]
bond_mii_monitor+0x3c0/0x2dc0 drivers/net/bonding/bond_main.c:2985
process_one_work+0x9cc/0x1b70 kernel/workqueue.c:3236
process_scheduled_works kernel/workqueue.c:3319 [inline]
worker_thread+0x6c8/0xf10 kernel/workqueue.c:3400
kthread+0x3c2/0x780 kernel/kthread.c:463
ret_from_fork+0x56a/0x730 arch/x86/kernel/process.c:148
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
=============================
WARNING: suspicious RCU usage
syzkaller #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/u32:1/14:
#0: ffff8880349c6948 ((wq_completion)bond0#3){+.+.}-{0:0}, at: process_one_work+0x12a2/0x1b70 kernel/workqueue.c:3211
#1: ffffc90000117d10 ((work_completion)(&(&bond->mii_work)->work)){+.+.}-{0:0}, at: process_one_work+0x929/0x1b70 kernel/workqueue.c:3212
#2: ffffffff8e5c15a0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:331 [inline]
#2: ffffffff8e5c15a0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:841 [inline]
#2: ffffffff8e5c15a0 (rcu_read_lock){....}-{1:3}, at: bond_mii_monitor+0x134/0x2dc0 drivers/net/bonding/bond_main.c:2983
stack backtrace:
CPU: 1 UID: 0 PID: 14 Comm: kworker/u32:1 Not tainted syzkaller #0 PREEMPT(full)
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Workqueue: bond0 bond_mii_monitor
Call Trace:
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x16c/0x1f0 lib/dump_stack.c:120
lockdep_rcu_suspicious+0x166/0x260 kernel/locking/lockdep.c:6876
dev_ingress_queue include/linux/rtnetlink.h:163 [inline]
dev_deactivate_many+0xa6c/0xd50 net/sched/sch_generic.c:1366
dev_deactivate+0xf8/0x1c0 net/sched/sch_generic.c:1401
linkwatch_do_dev+0x11e/0x160 net/core/link_watch.c:184
__linkwatch_sync_dev+0xfd/0x230 net/core/link_watch.c:282
ethtool_op_get_link+0x1d/0x70 net/ethtool/ioctl.c:63
bond_check_dev_link+0x3fc/0x710 drivers/net/bonding/bond_main.c:865
bond_miimon_inspect drivers/net/bonding/bond_main.c:2763 [inline]
bond_mii_monitor+0x3c0/0x2dc0 drivers/net/bonding/bond_main.c:2985
process_one_work+0x9cc/0x1b70 kernel/workqueue.c:3236
process_scheduled_works kernel/workqueue.c:3319 [inline]
worker_thread+0x6c8/0xf10 kernel/workqueue.c:3400
kthread+0x3c2/0x780 kernel/kthread.c:463
ret_from_fork+0x56a/0x730 arch/x86/kernel/process.c:148
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
=============================
WARNING: suspicious RCU usage
syzkaller #0 Not tainted
-----------------------------
net/sched/sch_generic.c:1304 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/u32:1/14:
#0: ffff8880349c6948 ((wq_completion)bond0#3){+.+.}-{0:0}, at: process_one_work+0x12a2/0x1b70 kernel/workqueue.c:3211
#1: ffffc90000117d10 ((work_completion)(&(&bond->mii_work)->work)){+.+.}-{0:0}, at: process_one_work+0x929/0x1b70 kernel/workqueue.c:3212
#2: ffffffff8e5c15a0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:331 [inline]
#2: ffffffff8e5c15a0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:841 [inline]
#2: ffffffff8e5c15a0 (rcu_read_lock){....}-{1:3}, at: bond_mii_monitor+0x134/0x2dc0 drivers/net/bonding/bond_main.c:2983
stack backtrace:
CPU: 1 UID: 0 PID: 14 Comm: kworker/u32:1 Not tainted syzkaller #0 PREEMPT(full)
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Workqueue: bond0 bond_mii_monitor
Call Trace:
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x16c/0x1f0 lib/dump_stack.c:120
lockdep_rcu_suspicious+0x166/0x260 kernel/locking/lockdep.c:6876
dev_reset_queue+0x13f/0x1d0 net/sched/sch_generic.c:1304
netdev_for_each_tx_queue include/linux/netdevice.h:2660 [inline]
dev_deactivate_many+0x4e5/0xd50 net/sched/sch_generic.c:1378
dev_deactivate+0xf8/0x1c0 net/sched/sch_generic.c:1401
linkwatch_do_dev+0x11e/0x160 net/core/link_watch.c:184
__linkwatch_sync_dev+0xfd/0x230 net/core/link_watch.c:282
ethtool_op_get_link+0x1d/0x70 net/ethtool/ioctl.c:63
bond_check_dev_link+0x3fc/0x710 drivers/net/bonding/bond_main.c:865
bond_miimon_inspect drivers/net/bonding/bond_main.c:2763 [inline]
bond_mii_monitor+0x3c0/0x2dc0 drivers/net/bonding/bond_main.c:2985
process_one_work+0x9cc/0x1b70 kernel/workqueue.c:3236
process_scheduled_works kernel/workqueue.c:3319 [inline]
worker_thread+0x6c8/0xf10 kernel/workqueue.c:3400
kthread+0x3c2/0x780 kernel/kthread.c:463
ret_from_fork+0x56a/0x730 arch/x86/kernel/process.c:148
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
=============================
WARNING: suspicious RCU usage
syzkaller #0 Not tainted
-----------------------------
net/sched/sch_generic.c:1335 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/u32:1/14:
#0: ffff8880349c6948 ((wq_completion)bond0
#3){+.+.}-{0:0}, at: process_one_work+0x12a2/0x1b70 kernel/workqueue.c:3211
#1:
ffffc90000117d10 ((work_completion)(&(&bond->mii_work)->work)
){+.+.}-{0:0}
, at: process_one_work+0x929/0x1b70 kernel/workqueue.c:3212
#2: ffffffff8e5c15a0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:331 [inline]
#2: ffffffff8e5c15a0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:841 [inline]
#2: ffffffff8e5c15a0 (rcu_read_lock){....}-{1:3}, at: bond_mii_monitor+0x134/0x2dc0 drivers/net/bonding/bond_main.c:2983
stack backtrace:
CPU: 1 UID: 0 PID: 14 Comm: kworker/u32:1 Not tainted syzkaller #0 PREEMPT(full)
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Workqueue: bond0 bond_mii_monitor
Call Trace:
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x16c/0x1f0 lib/dump_stack.c:120
lockdep_rcu_suspicious+0x166/0x260 kernel/locking/lockdep.c:6876
some_qdisc_is_busy net/sched/sch_generic.c:1335 [inline]
dev_deactivate_many+0x876/0xd50 net/sched/sch_generic.c:1386
dev_deactivate+0xf8/0x1c0 net/sched/sch_generic.c:1401
linkwatch_do_dev+0x11e/0x160 net/core/link_watch.c:184
__linkwatch_sync_dev+0xfd/0x230 net/core/link_watch.c:282
ethtool_op_get_link+0x1d/0x70 net/ethtool/ioctl.c:63
bond_check_dev_link+0x3fc/0x710 drivers/net/bonding/bond_main.c:865
bond_miimon_inspect drivers/net/bonding/bond_main.c:2763 [inline]
bond_mii_monitor+0x3c0/0x2dc0 drivers/net/bonding/bond_main.c:2985
process_one_work+0x9cc/0x1b70 kernel/workqueue.c:3236
process_scheduled_works kernel/workqueue.c:3319 [inline]
worker_thread+0x6c8/0xf10 kernel/workqueue.c:3400
kthread+0x3c2/0x780 kernel/kthread.c:463
ret_from_fork+0x56a/0x730 arch/x86/kernel/process.c:148
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
BUG: sleeping function called from invalid context at kernel/locking/rwsem.c:1536
in_atomic(): 0, irqs_disabled(): 0, non_block: 0, pid: 14, name: kworker/u32:1
preempt_count: 0, expected: 0
RCU nest depth: 1, expected: 0
3 locks held by kworker/u32:1/14:
#0: ffff8880349c6948 ((wq_completion)bond0#3){+.+.}-{0:0}, at: process_one_work+0x12a2/0x1b70 kernel/workqueue.c:3211
#1: ffffc90000117d10 ((work_completion)(&(&bond->mii_work)->work)){+.+.}-{0:0}, at: process_one_work+0x929/0x1b70 kernel/workqueue.c:3212
#2: ffffffff8e5c15a0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:331 [inline]
#2: ffffffff8e5c15a0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:841 [inline]
#2: ffffffff8e5c15a0 (rcu_read_lock){....}-{1:3}, at: bond_mii_monitor+0x134/0x2dc0 drivers/net/bonding/bond_main.c:2983
CPU: 1 UID: 0 PID: 14 Comm: kworker/u32:1 Not tainted syzkaller #0 PREEMPT(full)
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Workqueue: bond0 bond_mii_monitor
Call Trace:
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x16c/0x1f0 lib/dump_stack.c:120
__might_resched+0x3c0/0x5e0 kernel/sched/core.c:8957
down_read+0x74/0x480 kernel/locking/rwsem.c:1536
wireless_nlevent_flush+0x1b/0x100 net/wireless/wext-core.c:351
wext_netdev_notifier_call+0xe/0x20 net/wireless/wext-core.c:371
notifier_call_chain+0xb9/0x410 kernel/notifier.c:85
call_netdevice_notifiers_info+0xbe/0x140 net/core/dev.c:2229
netif_state_change+0x165/0x3b0 net/core/dev.c:1583
linkwatch_do_dev+0x12b/0x160 net/core/link_watch.c:186
__linkwatch_sync_dev+0xfd/0x230 net/core/link_watch.c:282
ethtool_op_get_link+0x1d/0x70 net/ethtool/ioctl.c:63
bond_check_dev_link+0x3fc/0x710 drivers/net/bonding/bond_main.c:865
bond_miimon_inspect drivers/net/bonding/bond_main.c:2763 [inline]
bond_mii_monitor+0x3c0/0x2dc0 drivers/net/bonding/bond_main.c:2985
process_one_work+0x9cc/0x1b70 kernel/workqueue.c:3236
process_scheduled_works kernel/workqueue.c:3319 [inline]
worker_thread+0x6c8/0xf10 kernel/workqueue.c:3400
kthread+0x3c2/0x780 kernel/kthread.c:463
ret_from_fork+0x56a/0x730 arch/x86/kernel/process.c:148
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
=============================
[ BUG: Invalid wait context ]
syzkaller #0 Tainted: G W
-----------------------------
kworker/u32:1/14 is trying to lock:
ffffffff9036f350 (net_rwsem){++++}-{4:4}, at: wireless_nlevent_flush+0x1b/0x100 net/wireless/wext-core.c:351
other info that might help us debug this:
context-{5:5}
3 locks held by kworker/u32:1/14:
#0: ffff8880349c6948 ((wq_completion)bond0#3){+.+.}-{0:0}, at: process_one_work+0x12a2/0x1b70 kernel/workqueue.c:3211
#1: ffffc90000117d10 ((work_completion)(&(&bond->mii_work)->work)){+.+.}-{0:0}, at: process_one_work+0x929/0x1b70 kernel/workqueue.c:3212
#2: ffffffff8e5c15a0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:331 [inline]
#2: ffffffff8e5c15a0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:841 [inline]
#2: ffffffff8e5c15a0 (rcu_read_lock){....}-{1:3}, at: bond_mii_monitor+0x134/0x2dc0 drivers/net/bonding/bond_main.c:2983
stack backtrace:
CPU: 1 UID: 0 PID: 14 Comm: kworker/u32:1 Tainted: G W syzkaller #0 PREEMPT(full)
Tainted: [W]=WARN
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Workqueue: bond0 bond_mii_monitor
Call Trace:
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120
print_lock_invalid_wait_context kernel/locking/lockdep.c:4830 [inline]
check_wait_context kernel/locking/lockdep.c:4902 [inline]
__lock_acquire+0xa27/0x1ce0 kernel/locking/lockdep.c:5187
lock_acquire kernel/locking/lockdep.c:5868 [inline]
lock_acquire+0x179/0x350 kernel/locking/lockdep.c:5825
down_read+0x9b/0x480 kernel/locking/rwsem.c:1537
wireless_nlevent_flush+0x1b/0x100 net/wireless/wext-core.c:351
wext_netdev_notifier_call+0xe/0x20 net/wireless/wext-core.c:371
notifier_call_chain+0xb9/0x410 kernel/notifier.c:85
call_netdevice_notifiers_info+0xbe/0x140 net/core/dev.c:2229
netif_state_change+0x165/0x3b0 net/core/dev.c:1583
linkwatch_do_dev+0x12b/0x160 net/core/link_watch.c:186
__linkwatch_sync_dev+0xfd/0x230 net/core/link_watch.c:282
ethtool_op_get_link+0x1d/0x70 net/ethtool/ioctl.c:63
bond_check_dev_link+0x3fc/0x710 drivers/net/bonding/bond_main.c:865
bond_miimon_inspect drivers/net/bonding/bond_main.c:2763 [inline]
bond_mii_monitor+0x3c0/0x2dc0 drivers/net/bonding/bond_main.c:2985
process_one_work+0x9cc/0x1b70 kernel/workqueue.c:3236
process_scheduled_works kernel/workqueue.c:3319 [inline]
worker_thread+0x6c8/0xf10 kernel/workqueue.c:3400
kthread+0x3c2/0x780 kernel/kthread.c:463
ret_from_fork+0x56a/0x730 arch/x86/kernel/process.c:148
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245