=============================
WARNING: suspicious RCU usage
6.12.0-rc6-syzkaller-00318-ga9cda7c0ffed #0 Not tainted
-----------------------------
net/sched/sch_generic.c:1290 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/u32:1/12:
#0: ffff8880623ac948 ((wq_completion)bond0#13){+.+.}-{0:0}, at: process_one_work+0x1212/0x1b30 kernel/workqueue.c:3204
#1: ffffc900003e7d80 ((work_completion)(&(&bond->mii_work)->work)){+.+.}-{0:0}, at: process_one_work+0x8bb/0x1b30 kernel/workqueue.c:3205
#2: ffffffff8ddb7800 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
#2: ffffffff8ddb7800 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
#2: ffffffff8ddb7800 (rcu_read_lock){....}-{1:2}, at: bond_mii_monitor+0x140/0x2d90 drivers/net/bonding/bond_main.c:2937
stack backtrace:
CPU: 3 UID: 0 PID: 12 Comm: kworker/u32:1 Not tainted 6.12.0-rc6-syzkaller-00318-ga9cda7c0ffed #0
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+0x210/0x3c0 kernel/locking/lockdep.c:6821
dev_deactivate_queue+0x167/0x190 net/sched/sch_generic.c:1290
netdev_for_each_tx_queue include/linux/netdevice.h:2504 [inline]
dev_deactivate_many+0xe7/0xb20 net/sched/sch_generic.c:1363
dev_deactivate+0xf9/0x1c0 net/sched/sch_generic.c:1403
linkwatch_do_dev+0x11e/0x160 net/core/link_watch.c:175
linkwatch_sync_dev+0x181/0x210 net/core/link_watch.c:263
ethtool_op_get_link+0x1d/0x70 net/ethtool/ioctl.c:62
bond_check_dev_link+0x197/0x430 drivers/net/bonding/bond_main.c:873
process_scheduled_works kernel/workqueue.c:3310 [inline]
worker_thread+0x6c8/0xf00 kernel/workqueue.c:3391
kthread+0x2c1/0x3a0 kernel/kthread.c:389
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
=============================
WARNING: suspicious RCU usage
6.12.0-rc6-syzkaller-00318-ga9cda7c0ffed #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/u32:1/12:
#0: ffff8880623ac948 ((wq_completion)bond0#13){+.+.}-{0:0}, at: process_one_work+0x1212/0x1b30 kernel/workqueue.c:3204
#1: ffffc900003e7d80 ((work_completion)(&(&bond->mii_work)->work)){+.+.}-{0:0}, at: process_one_work+0x8bb/0x1b30 kernel/workqueue.c:3205
#2: ffffffff8ddb7800 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
#2: ffffffff8ddb7800 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
#2: ffffffff8ddb7800 (rcu_read_lock){....}-{1:2}, at: bond_mii_monitor+0x140/0x2d90 drivers/net/bonding/bond_main.c:2937
stack backtrace:
CPU: 3 UID: 0 PID: 12 Comm: kworker/u32:1 Not tainted 6.12.0-rc6-syzkaller-00318-ga9cda7c0ffed #0
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+0x210/0x3c0 kernel/locking/lockdep.c:6821
dev_ingress_queue include/linux/rtnetlink.h:100 [inline]
dev_deactivate_many+0x8af/0xb20 net/sched/sch_generic.c:1365
dev_deactivate+0xf9/0x1c0 net/sched/sch_generic.c:1403
linkwatch_do_dev+0x11e/0x160 net/core/link_watch.c:175
linkwatch_sync_dev+0x181/0x210 net/core/link_watch.c:263
ethtool_op_get_link+0x1d/0x70 net/ethtool/ioctl.c:62
bond_check_dev_link+0x197/0x430 drivers/net/bonding/bond_main.c:873
bond_miimon_inspect drivers/net/bonding/bond_main.c:2717 [inline]
bond_mii_monitor+0x3c1/0x2d90 drivers/net/bonding/bond_main.c:2939
process_one_work+0x958/0x1b30 kernel/workqueue.c:3229
process_scheduled_works kernel/workqueue.c:3310 [inline]
worker_thread+0x6c8/0xf00 kernel/workqueue.c:3391
kthread+0x2c1/0x3a0 kernel/kthread.c:389
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
BUG: sleeping function called from invalid context at net/core/dev.c:11284
3 locks held by kworker/u32:1/12:
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
linkwatch_do_dev+0x11e/0x160 net/core/link_watch.c:175
process_one_work+0x958/0x1b30 kernel/workqueue.c:3229
process_scheduled_works kernel/workqueue.c:3310 [inline]
worker_thread+0x6c8/0xf00 kernel/workqueue.c:3391
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
other info that might help us debug this:
rcu_scheduler_active = 2, debug_locks = 1
stack backtrace:
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Call Trace:
lockdep_rcu_suspicious+0x210/0x3c0 kernel/locking/lockdep.c:6821
dev_deactivate_many+0x2a1/0xb20 net/sched/sch_generic.c:1377
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
Workqueue: bond0 bond_mii_monitor
RIP: 0010:rcu_note_context_switch+0xc5c/0x1ae0 kernel/rcu/tree_plugin.h:331
RSP: 0018:ffffc900003e74f8 EFLAGS: 00010086
RAX: 0000000000000000 RBX: ffff88802b73fe40 RCX: ffffffff814e2559
R10: 0000000000000000 R11: 0000000000000000 R12: ffff88801b744880
R13: ffff88801b744880 R14: ffff88801b744880 R15: ffff88802b73ee80
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Call Trace:
__schedule_loop kernel/sched/core.c:6767 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6782
linkwatch_do_dev+0x11e/0x160 net/core/link_watch.c:175
bond_check_dev_link+0x197/0x430 drivers/net/bonding/bond_main.c:873
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
CPU: 3 UID: 0 PID: 12 Comm: kworker/u32:1 Tainted: G W 6.12.0-rc6-syzkaller-00318-ga9cda7c0ffed #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Call Trace:
panic+0x71d/0x800 kernel/panic.c:354
__warn+0xf6/0x3d0 kernel/panic.c:748
handle_bug+0x54/0xa0 arch/x86/kernel/traps.c:285
asm_exc_invalid_op+0x1a/0x20 arch/x86/include/asm/idtentry.h:621
Code: 79 00 4c 8b 54 24 30 48 8b 44 24 28 8b 4c 24 10 e9 c6 03 00 00 c6 05 66 e7 90 0e 01 90 48 c7 c7 60 9b 4e 8b e8 d5 62 d9 ff 90 <0f> 0b 90 90 e9 a8 f4 ff ff 38 d0 7f 08 84 c0 0f 85 2b 08 00 00 80
RAX: 0000000000000000 RBX: ffff88802b73fe40 RCX: ffffffff814e2559
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffff88801b744880
__schedule_loop kernel/sched/core.c:6767 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6782
synchronize_rcu_expedited+0x290/0x450 kernel/rcu/tree_exp.h:976
dev_deactivate_many+0x2a1/0xb20 net/sched/sch_generic.c:1377
linkwatch_do_dev+0x11e/0x160 net/core/link_watch.c:175
bond_check_dev_link+0x197/0x430 drivers/net/bonding/bond_main.c:873
Kernel Offset: disabled
Rebooting in 86400 seconds..