=============================
WARNING: suspicious RCU usage
6.10.0-rc5-syzkaller-01176-g19e6ad2c7578 #0 Not tainted
-----------------------------
net/sched/sch_generic.c:1250 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/u8:11/5268:
#0: ffff888067458948 ((wq_completion)bond0#5){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3223 [inline]
#0: ffff888067458948 ((wq_completion)bond0#5){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3329
#1: ffffc90004757d00 ((work_completion)(&(&bond->mii_work)->work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3224 [inline]
#1: ffffc90004757d00 ((work_completion)(&(&bond->mii_work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3329
#2: ffffffff8e333f60 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:329 [inline]
#2: ffffffff8e333f60 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:781 [inline]
#2: ffffffff8e333f60 (rcu_read_lock){....}-{1:2}, at: bond_mii_monitor+0x174/0x3170 drivers/net/bonding/bond_main.c:2824
stack backtrace:
CPU: 1 PID: 5268 Comm: kworker/u8:11 Not tainted 6.10.0-rc5-syzkaller-01176-g19e6ad2c7578 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
Workqueue: bond0 bond_mii_monitor
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:114
lockdep_rcu_suspicious+0x221/0x340 kernel/locking/lockdep.c:6712
dev_activate+0xf8/0x1240 net/sched/sch_generic.c:1250
linkwatch_do_dev+0xfb/0x170 net/core/link_watch.c:173
ethtool_op_get_link+0x15/0x60 net/ethtool/ioctl.c:62
bond_check_dev_link+0x1f1/0x3f0 drivers/net/bonding/bond_main.c:757
bond_miimon_inspect drivers/net/bonding/bond_main.c:2604 [inline]
bond_mii_monitor+0x49a/0x3170 drivers/net/bonding/bond_main.c:2826
process_one_work kernel/workqueue.c:3248 [inline]
process_scheduled_works+0xa2c/0x1830 kernel/workqueue.c:3329
worker_thread+0x86d/0xd50 kernel/workqueue.c:3409
kthread+0x2f0/0x390 kernel/kthread.c:389
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
=============================
WARNING: suspicious RCU usage
6.10.0-rc5-syzkaller-01176-g19e6ad2c7578 #0 Not tainted
-----------------------------
net/sched/sch_generic.c:1228 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/u8:11/5268:
#0: ffff888067458948 ((wq_completion)bond0#5){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3223 [inline]
#0: ffff888067458948 ((wq_completion)bond0#5){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3329
#1: ffffc90004757d00 ((work_completion)(&(&bond->mii_work)->work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3224 [inline]
#1: ffffc90004757d00 ((work_completion)(&(&bond->mii_work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3329
#2: ffffffff8e333f60 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:329 [inline]
#2: ffffffff8e333f60 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:781 [inline]
#2: ffffffff8e333f60 (rcu_read_lock){....}-{1:2}, at: bond_mii_monitor+0x174/0x3170 drivers/net/bonding/bond_main.c:2824
stack backtrace:
CPU: 1 PID: 5268 Comm: kworker/u8:11 Not tainted 6.10.0-rc5-syzkaller-01176-g19e6ad2c7578 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
Workqueue: bond0 bond_mii_monitor
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:114
lockdep_rcu_suspicious+0x221/0x340 kernel/locking/lockdep.c:6712
transition_one_qdisc+0x8e/0x1c0 net/sched/sch_generic.c:1228
netdev_for_each_tx_queue include/linux/netdevice.h:2512 [inline]
dev_activate+0x838/0x1240 net/sched/sch_generic.c:1258
linkwatch_do_dev+0xfb/0x170 net/core/link_watch.c:173
ethtool_op_get_link+0x15/0x60 net/ethtool/ioctl.c:62
bond_check_dev_link+0x1f1/0x3f0 drivers/net/bonding/bond_main.c:757
bond_miimon_inspect drivers/net/bonding/bond_main.c:2604 [inline]
bond_mii_monitor+0x49a/0x3170 drivers/net/bonding/bond_main.c:2826
process_one_work kernel/workqueue.c:3248 [inline]
process_scheduled_works+0xa2c/0x1830 kernel/workqueue.c:3329
worker_thread+0x86d/0xd50 kernel/workqueue.c:3409
kthread+0x2f0/0x390 kernel/kthread.c:389
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
=============================
WARNING: suspicious RCU usage
6.10.0-rc5-syzkaller-01176-g19e6ad2c7578 #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/u8:11/5268:
#0: ffff888067458948 ((wq_completion)bond0#5){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3223 [inline]
#0: ffff888067458948 ((wq_completion)bond0#5){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3329
#1: ffffc90004757d00 ((work_completion)(&(&bond->mii_work)->work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3224 [inline]
#1: ffffc90004757d00 ((work_completion)(&(&bond->mii_work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3329
#2: ffffffff8e333f60 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:329 [inline]
#2: ffffffff8e333f60 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:781 [inline]
#2: ffffffff8e333f60 (rcu_read_lock){....}-{1:2}, at: bond_mii_monitor+0x174/0x3170 drivers/net/bonding/bond_main.c:2824
stack backtrace:
CPU: 0 PID: 5268 Comm: kworker/u8:11 Not tainted 6.10.0-rc5-syzkaller-01176-g19e6ad2c7578 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
Workqueue: bond0 bond_mii_monitor
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:114
lockdep_rcu_suspicious+0x221/0x340 kernel/locking/lockdep.c:6712
dev_ingress_queue include/linux/rtnetlink.h:100 [inline]
dev_activate+0x925/0x1240 net/sched/sch_generic.c:1259
linkwatch_do_dev+0xfb/0x170 net/core/link_watch.c:173
ethtool_op_get_link+0x15/0x60 net/ethtool/ioctl.c:62
bond_check_dev_link+0x1f1/0x3f0 drivers/net/bonding/bond_main.c:757
bond_miimon_inspect drivers/net/bonding/bond_main.c:2604 [inline]
bond_mii_monitor+0x49a/0x3170 drivers/net/bonding/bond_main.c:2826
process_one_work kernel/workqueue.c:3248 [inline]
process_scheduled_works+0xa2c/0x1830 kernel/workqueue.c:3329
worker_thread+0x86d/0xd50 kernel/workqueue.c:3409
kthread+0x2f0/0x390 kernel/kthread.c:389
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
BUG: sleeping function called from invalid context at kernel/locking/rwsem.c:1525
in_atomic(): 0, irqs_disabled(): 0, non_block: 0, pid: 5268, name: kworker/u8:11
preempt_count: 0, expected: 0
RCU nest depth: 1, expected: 0
3 locks held by kworker/u8:11/5268:
#0: ffff888067458948 ((wq_completion)bond0#5){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3223 [inline]
#0: ffff888067458948 ((wq_completion)bond0#5){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3329
#1: ffffc90004757d00 ((work_completion)(&(&bond->mii_work)->work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3224 [inline]
#1: ffffc90004757d00 ((work_completion)(&(&bond->mii_work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3329
#2: ffffffff8e333f60 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:329 [inline]
#2: ffffffff8e333f60 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:781 [inline]
#2: ffffffff8e333f60 (rcu_read_lock){....}-{1:2}, at: bond_mii_monitor+0x174/0x3170 drivers/net/bonding/bond_main.c:2824
CPU: 0 PID: 5268 Comm: kworker/u8:11 Not tainted 6.10.0-rc5-syzkaller-01176-g19e6ad2c7578 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
Workqueue: bond0 bond_mii_monitor
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:114
__might_resched+0x5d4/0x780 kernel/sched/core.c:10196
down_read+0x8e/0xa40 kernel/locking/rwsem.c:1525
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+0x19f/0x3e0 kernel/notifier.c:93
netdev_state_change+0x11f/0x1a0 net/core/dev.c:1376
linkwatch_do_dev+0x112/0x170 net/core/link_watch.c:177
ethtool_op_get_link+0x15/0x60 net/ethtool/ioctl.c:62
bond_check_dev_link+0x1f1/0x3f0 drivers/net/bonding/bond_main.c:757
bond_miimon_inspect drivers/net/bonding/bond_main.c:2604 [inline]
bond_mii_monitor+0x49a/0x3170 drivers/net/bonding/bond_main.c:2826
process_one_work kernel/workqueue.c:3248 [inline]
process_scheduled_works+0xa2c/0x1830 kernel/workqueue.c:3329
worker_thread+0x86d/0xd50 kernel/workqueue.c:3409
kthread+0x2f0/0x390 kernel/kthread.c:389
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
=============================
[ BUG: Invalid wait context ]
6.10.0-rc5-syzkaller-01176-g19e6ad2c7578 #0 Tainted: G W
-----------------------------
kworker/u8:11/5268 is trying to lock:
ffffffff8f5db5d0 (net_rwsem){++++}-{3:3}, at: wireless_nlevent_flush net/wireless/wext-core.c:351 [inline]
ffffffff8f5db5d0 (net_rwsem){++++}-{3:3}, at: wext_netdev_notifier_call+0x1f/0x120 net/wireless/wext-core.c:371
other info that might help us debug this:
context-{4:4}
3 locks held by kworker/u8:11/5268:
#0: ffff888067458948 ((wq_completion)bond0#5){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3223 [inline]
#0: ffff888067458948 ((wq_completion)bond0#5){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3329
#1: ffffc90004757d00 ((work_completion)(&(&bond->mii_work)->work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3224 [inline]
#1: ffffc90004757d00 ((work_completion)(&(&bond->mii_work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3329
#2: ffffffff8e333f60 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:329 [inline]
#2: ffffffff8e333f60 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:781 [inline]
#2: ffffffff8e333f60 (rcu_read_lock){....}-{1:2}, at: bond_mii_monitor+0x174/0x3170 drivers/net/bonding/bond_main.c:2824
stack backtrace:
CPU: 0 PID: 5268 Comm: kworker/u8:11 Tainted: G W 6.10.0-rc5-syzkaller-01176-g19e6ad2c7578 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
Workqueue: bond0 bond_mii_monitor
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:114
print_lock_invalid_wait_context kernel/locking/lockdep.c:4751 [inline]
check_wait_context kernel/locking/lockdep.c:4821 [inline]
__lock_acquire+0x1507/0x1fd0 kernel/locking/lockdep.c:5087
lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5754
down_read+0xb1/0xa40 kernel/locking/rwsem.c:1526
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+0x19f/0x3e0 kernel/notifier.c:93
netdev_state_change+0x11f/0x1a0 net/core/dev.c:1376
linkwatch_do_dev+0x112/0x170 net/core/link_watch.c:177
ethtool_op_get_link+0x15/0x60 net/ethtool/ioctl.c:62
bond_check_dev_link+0x1f1/0x3f0 drivers/net/bonding/bond_main.c:757
bond_miimon_inspect drivers/net/bonding/bond_main.c:2604 [inline]
bond_mii_monitor+0x49a/0x3170 drivers/net/bonding/bond_main.c:2826
process_one_work kernel/workqueue.c:3248 [inline]
process_scheduled_works+0xa2c/0x1830 kernel/workqueue.c:3329
worker_thread+0x86d/0xd50 kernel/workqueue.c:3409
kthread+0x2f0/0x390 kernel/kthread.c:389
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
------------[ cut here ]------------
Voluntary context switch within RCU read-side critical section!
WARNING: CPU: 0 PID: 5268 at kernel/rcu/tree_plugin.h:320 rcu_note_context_switch+0xcf4/0xff0 kernel/rcu/tree_plugin.h:320
Modules linked in:
CPU: 0 PID: 5268 Comm: kworker/u8:11 Tainted: G W 6.10.0-rc5-syzkaller-01176-g19e6ad2c7578 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
Workqueue: bond0 bond_mii_monitor
RIP: 0010:rcu_note_context_switch+0xcf4/0xff0 kernel/rcu/tree_plugin.h:320
Code: 00 ba 02 00 00 00 e8 3b 02 fe ff 4c 8b b4 24 80 00 00 00 eb 91 c6 05 be 0f 1b 0e 01 90 48 c7 c7 60 13 cc 8b e8 5d 29 db ff 90 <0f> 0b 90 90 e9 3b f4 ff ff 90 0f 0b 90 45 84 ed 0f 84 00 f4 ff ff
RSP: 0018:ffffc90004757120 EFLAGS: 00010046
RAX: 1d61e9831ff2ce00 RBX: ffff888018eede44 RCX: ffff888018eeda00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90004757270 R08: ffffffff81585802 R09: fffffbfff1c39994
R10: dffffc0000000000 R11: fffffbfff1c39994 R12: ffff888018eeda00
R13: 0000000000000000 R14: 1ffff920008eae3c R15: dffffc0000000000
FS: 0000000000000000(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c2e347f CR3: 000000005d996000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
__schedule+0x348/0x4a20 kernel/sched/core.c:6634
__schedule_loop kernel/sched/core.c:6822 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6837
synchronize_rcu_expedited+0x684/0x830 kernel/rcu/tree_exp.h:954
dev_deactivate_many+0x4a7/0xb10 net/sched/sch_generic.c:1371
dev_deactivate+0x184/0x280 net/sched/sch_generic.c:1397
linkwatch_do_dev+0x10a/0x170 net/core/link_watch.c:175
ethtool_op_get_link+0x15/0x60 net/ethtool/ioctl.c:62
bond_check_dev_link+0x1f1/0x3f0 drivers/net/bonding/bond_main.c:757
bond_miimon_inspect drivers/net/bonding/bond_main.c:2604 [inline]
bond_mii_monitor+0x49a/0x3170 drivers/net/bonding/bond_main.c:2826
process_one_work kernel/workqueue.c:3248 [inline]
process_scheduled_works+0xa2c/0x1830 kernel/workqueue.c:3329
worker_thread+0x86d/0xd50 kernel/workqueue.c:3409
kthread+0x2f0/0x390 kernel/kthread.c:389
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244