=============================
WARNING: suspicious RCU usage
6.14.0-syzkaller-07540-geff5f16bfd87 #0 Not tainted
-----------------------------
net/sched/sch_generic.c:1251 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/u32:1/13:
#0: ffff88804ba01148 ((wq_completion)bond0
#3
){+.+.}-{0:0}, at: process_one_work+0x12a2/0x1b70 kernel/workqueue.c:3213
#1: ffffc90000107d18 ((work_completion)(&(&bond->mii_work)->work)){+.+.}-{0:0}, at: process_one_work+0x929/0x1b70 kernel/workqueue.c:3214
#2: ffffffff8e3bdcc0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:331 [inline]
#2: ffffffff8e3bdcc0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:841 [inline]
#2: ffffffff8e3bdcc0 (rcu_read_lock){....}-{1:3}, at: bond_mii_monitor+0x134/0x2dc0 drivers/net/bonding/bond_main.c:2954
stack backtrace:
CPU: 3 UID: 0 PID: 13 Comm: kworker/u32:1 Not tainted 6.14.0-syzkaller-07540-geff5f16bfd87 #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:6862
dev_activate+0x45c/0x12d0 net/sched/sch_generic.c:1251
linkwatch_do_dev+0x13d/0x160 net/core/link_watch.c:182
linkwatch_sync_dev+0x181/0x210 net/core/link_watch.c:272
ethtool_op_get_link+0x1d/0x70 net/ethtool/ioctl.c:63
bond_check_dev_link+0x196/0x480 drivers/net/bonding/bond_main.c:864
bond_miimon_inspect drivers/net/bonding/bond_main.c:2734 [inline]
bond_mii_monitor+0x3c0/0x2dc0 drivers/net/bonding/bond_main.c:2956
process_one_work+0x9cc/0x1b70 kernel/workqueue.c:3238
process_scheduled_works kernel/workqueue.c:3319 [inline]
worker_thread+0x6c8/0xf10 kernel/workqueue.c:3400
kthread+0x3c2/0x780 kernel/kthread.c:464
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:153
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
=============================
WARNING: suspicious RCU usage
6.14.0-syzkaller-07540-geff5f16bfd87 #0 Not tainted
-----------------------------
net/sched/sch_generic.c:1229 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/u32:1/13:
#0: ffff88804ba01148 ((wq_completion)bond0#3){+.+.}-{0:0}, at: process_one_work+0x12a2/0x1b70 kernel/workqueue.c:3213
#1: ffffc90000107d18 ((work_completion)(&(&bond->mii_work)->work)){+.+.}-{0:0}, at: process_one_work+0x929/0x1b70 kernel/workqueue.c:3214
#2: ffffffff8e3bdcc0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:331 [inline]
#2: ffffffff8e3bdcc0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:841 [inline]
#2: ffffffff8e3bdcc0 (rcu_read_lock){....}-{1:3}, at: bond_mii_monitor+0x134/0x2dc0 drivers/net/bonding/bond_main.c:2954
stack backtrace:
CPU: 0 UID: 0 PID: 13 Comm: kworker/u32:1 Not tainted 6.14.0-syzkaller-07540-geff5f16bfd87 #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:6862
transition_one_qdisc+0x1d4/0x210 net/sched/sch_generic.c:1229
netdev_for_each_tx_queue include/linux/netdevice.h:2650 [inline]
dev_activate+0x216/0x12d0 net/sched/sch_generic.c:1259
linkwatch_do_dev+0x13d/0x160 net/core/link_watch.c:182
linkwatch_sync_dev+0x181/0x210 net/core/link_watch.c:272
ethtool_op_get_link+0x1d/0x70 net/ethtool/ioctl.c:63
bond_check_dev_link+0x196/0x480 drivers/net/bonding/bond_main.c:864
bond_miimon_inspect drivers/net/bonding/bond_main.c:2734 [inline]
bond_mii_monitor+0x3c0/0x2dc0 drivers/net/bonding/bond_main.c:2956
process_one_work+0x9cc/0x1b70 kernel/workqueue.c:3238
process_scheduled_works kernel/workqueue.c:3319 [inline]
worker_thread+0x6c8/0xf10 kernel/workqueue.c:3400
kthread+0x3c2/0x780 kernel/kthread.c:464
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:153
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
=============================
WARNING: suspicious RCU usage
6.14.0-syzkaller-07540-geff5f16bfd87 #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/u32:1/13:
#0: ffff88804ba01148 ((wq_completion)bond0#3){+.+.}-{0:0}, at: process_one_work+0x12a2/0x1b70 kernel/workqueue.c:3213
#1: ffffc90000107d18 ((work_completion)(&(&bond->mii_work)->work)){+.+.}-{0:0}, at: process_one_work+0x929/0x1b70 kernel/workqueue.c:3214
#2: ffffffff8e3bdcc0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:331 [inline]
#2: ffffffff8e3bdcc0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:841 [inline]
#2: ffffffff8e3bdcc0 (rcu_read_lock){....}-{1:3}, at: bond_mii_monitor+0x134/0x2dc0 drivers/net/bonding/bond_main.c:2954
stack backtrace:
CPU: 0 UID: 0 PID: 13 Comm: kworker/u32:1 Not tainted 6.14.0-syzkaller-07540-geff5f16bfd87 #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:6862
dev_ingress_queue include/linux/rtnetlink.h:163 [inline]
dev_activate+0x7f8/0x12d0 net/sched/sch_generic.c:1260
linkwatch_do_dev+0x13d/0x160 net/core/link_watch.c:182
linkwatch_sync_dev+0x181/0x210 net/core/link_watch.c:272
ethtool_op_get_link+0x1d/0x70 net/ethtool/ioctl.c:63
bond_check_dev_link+0x196/0x480 drivers/net/bonding/bond_main.c:864
bond_miimon_inspect drivers/net/bonding/bond_main.c:2734 [inline]
bond_mii_monitor+0x3c0/0x2dc0 drivers/net/bonding/bond_main.c:2956
process_one_work+0x9cc/0x1b70 kernel/workqueue.c:3238
process_scheduled_works kernel/workqueue.c:3319 [inline]
worker_thread+0x6c8/0xf10 kernel/workqueue.c:3400
kthread+0x3c2/0x780 kernel/kthread.c:464
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:153
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:1523
in_atomic(): 0, irqs_disabled(): 0, non_block: 0, pid: 13, name: kworker/u32:1
preempt_count: 0, expected: 0
RCU nest depth: 1, expected: 0
3 locks held by kworker/u32:1/13:
#0: ffff88804ba01148 ((wq_completion)bond0#3){+.+.}-{0:0}, at: process_one_work+0x12a2/0x1b70 kernel/workqueue.c:3213
#1: ffffc90000107d18 ((work_completion)(&(&bond->mii_work)->work)){+.+.}-{0:0}, at: process_one_work+0x929/0x1b70 kernel/workqueue.c:3214
#2: ffffffff8e3bdcc0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:331 [inline]
#2: ffffffff8e3bdcc0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:841 [inline]
#2: ffffffff8e3bdcc0 (rcu_read_lock){....}-{1:3}, at: bond_mii_monitor+0x134/0x2dc0 drivers/net/bonding/bond_main.c:2954
CPU: 2 UID: 0 PID: 13 Comm: kworker/u32:1 Not tainted 6.14.0-syzkaller-07540-geff5f16bfd87 #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:8818
down_read+0x74/0x480 kernel/locking/rwsem.c:1523
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:2180
netdev_state_change net/core/dev.c:1536 [inline]
netdev_state_change+0x113/0x150 net/core/dev.c:1529
linkwatch_do_dev+0x12b/0x160 net/core/link_watch.c:186
linkwatch_sync_dev+0x181/0x210 net/core/link_watch.c:272
ethtool_op_get_link+0x1d/0x70 net/ethtool/ioctl.c:63
bond_check_dev_link+0x196/0x480 drivers/net/bonding/bond_main.c:864
bond_miimon_inspect drivers/net/bonding/bond_main.c:2734 [inline]
bond_mii_monitor+0x3c0/0x2dc0 drivers/net/bonding/bond_main.c:2956
process_one_work+0x9cc/0x1b70 kernel/workqueue.c:3238
process_scheduled_works kernel/workqueue.c:3319 [inline]
worker_thread+0x6c8/0xf10 kernel/workqueue.c:3400
kthread+0x3c2/0x780 kernel/kthread.c:464
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:153
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
=============================
[ BUG: Invalid wait context ]
6.14.0-syzkaller-07540-geff5f16bfd87 #0 Tainted: G W
-----------------------------
kworker/u32:1/13 is trying to lock:
ffffffff900f6450 (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/u32:1/13:
#0: ffff88804ba01148 ((wq_completion)bond0#3){+.+.}-{0:0}, at: process_one_work+0x12a2/0x1b70 kernel/workqueue.c:3213
#1: ffffc90000107d18 ((work_completion)(&(&bond->mii_work)->work)){+.+.}-{0:0}, at: process_one_work+0x929/0x1b70 kernel/workqueue.c:3214
#2: ffffffff8e3bdcc0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:331 [inline]
#2: ffffffff8e3bdcc0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:841 [inline]
#2: ffffffff8e3bdcc0 (rcu_read_lock){....}-{1:3}, at: bond_mii_monitor+0x134/0x2dc0 drivers/net/bonding/bond_main.c:2954
stack backtrace:
CPU: 2 UID: 0 PID: 13 Comm: kworker/u32:1 Tainted: G W 6.14.0-syzkaller-07540-geff5f16bfd87 #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:4831 [inline]
check_wait_context kernel/locking/lockdep.c:4903 [inline]
__lock_acquire+0x3ff/0x1ba0 kernel/locking/lockdep.c:5185
lock_acquire kernel/locking/lockdep.c:5866 [inline]
lock_acquire+0x179/0x350 kernel/locking/lockdep.c:5823
down_read+0x9b/0x480 kernel/locking/rwsem.c:1524
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:2180
netdev_state_change net/core/dev.c:1536 [inline]
netdev_state_change+0x113/0x150 net/core/dev.c:1529
linkwatch_do_dev+0x12b/0x160 net/core/link_watch.c:186
linkwatch_sync_dev+0x181/0x210 net/core/link_watch.c:272
ethtool_op_get_link+0x1d/0x70 net/ethtool/ioctl.c:63
bond_check_dev_link+0x196/0x480 drivers/net/bonding/bond_main.c:864
bond_miimon_inspect drivers/net/bonding/bond_main.c:2734 [inline]
bond_mii_monitor+0x3c0/0x2dc0 drivers/net/bonding/bond_main.c:2956
process_one_work+0x9cc/0x1b70 kernel/workqueue.c:3238
process_scheduled_works kernel/workqueue.c:3319 [inline]
worker_thread+0x6c8/0xf10 kernel/workqueue.c:3400
kthread+0x3c2/0x780 kernel/kthread.c:464
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:153
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245