============================= WARNING: suspicious RCU usage 6.13.0-rc3-syzkaller-00180-g4f619d518db9 #0 Not tainted ----------------------------- net/sched/sch_generic.c:1256 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/u8:5/151: #0: ffff8880586b1148 ((wq_completion)bond0#5){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3204 [inline] #0: ffff8880586b1148 ((wq_completion)bond0#5){+.+.}-{0:0}, at: process_scheduled_works+0x93b/0x1840 kernel/workqueue.c:3310 #1: ffffc90002eb7d00 ((work_completion)(&(&bond->mii_work)->work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3205 [inline] #1: ffffc90002eb7d00 ((work_completion)(&(&bond->mii_work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x976/0x1840 kernel/workqueue.c:3310 #2: ffffffff8e937ae0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline] #2: ffffffff8e937ae0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline] #2: ffffffff8e937ae0 (rcu_read_lock){....}-{1:3}, at: bond_mii_monitor+0x174/0x3170 drivers/net/bonding/bond_main.c:2960 stack backtrace: CPU: 1 UID: 0 PID: 151 Comm: kworker/u8:5 Not tainted 6.13.0-rc3-syzkaller-00180-g4f619d518db9 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Workqueue: bond0 bond_mii_monitor Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120 lockdep_rcu_suspicious+0x226/0x340 kernel/locking/lockdep.c:6845 dev_activate+0xf8/0x1240 net/sched/sch_generic.c:1256 linkwatch_do_dev+0xfb/0x170 net/core/link_watch.c:178 ethtool_op_get_link+0x15/0x60 net/ethtool/ioctl.c:62 bond_check_dev_link+0x1f1/0x3f0 drivers/net/bonding/bond_main.c:873 bond_miimon_inspect drivers/net/bonding/bond_main.c:2740 [inline] bond_mii_monitor+0x49a/0x3170 drivers/net/bonding/bond_main.c:2962 process_one_work kernel/workqueue.c:3229 [inline] process_scheduled_works+0xa66/0x1840 kernel/workqueue.c:3310 worker_thread+0x870/0xd30 kernel/workqueue.c:3391 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 6.13.0-rc3-syzkaller-00180-g4f619d518db9 #0 Not tainted ----------------------------- net/sched/sch_generic.c:1234 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/u8:5/151: #0: ffff8880586b1148 ((wq_completion)bond0#5){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3204 [inline] #0: ffff8880586b1148 ((wq_completion)bond0#5){+.+.}-{0:0}, at: process_scheduled_works+0x93b/0x1840 kernel/workqueue.c:3310 #1: ffffc90002eb7d00 ((work_completion)(&(&bond->mii_work)->work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3205 [inline] #1: ffffc90002eb7d00 ((work_completion)(&(&bond->mii_work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x976/0x1840 kernel/workqueue.c:3310 #2: ffffffff8e937ae0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline] #2: ffffffff8e937ae0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline] #2: ffffffff8e937ae0 (rcu_read_lock){....}-{1:3}, at: bond_mii_monitor+0x174/0x3170 drivers/net/bonding/bond_main.c:2960 stack backtrace: CPU: 1 UID: 0 PID: 151 Comm: kworker/u8:5 Not tainted 6.13.0-rc3-syzkaller-00180-g4f619d518db9 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Workqueue: bond0 bond_mii_monitor Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120 lockdep_rcu_suspicious+0x226/0x340 kernel/locking/lockdep.c:6845 transition_one_qdisc+0x8e/0x1c0 net/sched/sch_generic.c:1234 netdev_for_each_tx_queue include/linux/netdevice.h:2562 [inline] dev_activate+0x838/0x1240 net/sched/sch_generic.c:1264 linkwatch_do_dev+0xfb/0x170 net/core/link_watch.c:178 ethtool_op_get_link+0x15/0x60 net/ethtool/ioctl.c:62 bond_check_dev_link+0x1f1/0x3f0 drivers/net/bonding/bond_main.c:873 bond_miimon_inspect drivers/net/bonding/bond_main.c:2740 [inline] bond_mii_monitor+0x49a/0x3170 drivers/net/bonding/bond_main.c:2962 process_one_work kernel/workqueue.c:3229 [inline] process_scheduled_works+0xa66/0x1840 kernel/workqueue.c:3310 worker_thread+0x870/0xd30 kernel/workqueue.c:3391 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 6.13.0-rc3-syzkaller-00180-g4f619d518db9 #0 Not tainted ----------------------------- ./include/linux/rtnetlink.h:156 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/u8:5/151: #0: ffff8880586b1148 ((wq_completion)bond0#5){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3204 [inline] #0: ffff8880586b1148 ((wq_completion)bond0#5){+.+.}-{0:0}, at: process_scheduled_works+0x93b/0x1840 kernel/workqueue.c:3310 #1: ffffc90002eb7d00 ((work_completion)(&(&bond->mii_work)->work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3205 [inline] #1: ffffc90002eb7d00 ((work_completion)(&(&bond->mii_work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x976/0x1840 kernel/workqueue.c:3310 #2: ffffffff8e937ae0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline] #2: ffffffff8e937ae0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline] #2: ffffffff8e937ae0 (rcu_read_lock){....}-{1:3}, at: bond_mii_monitor+0x174/0x3170 drivers/net/bonding/bond_main.c:2960 stack backtrace: CPU: 0 UID: 0 PID: 151 Comm: kworker/u8:5 Not tainted 6.13.0-rc3-syzkaller-00180-g4f619d518db9 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Workqueue: bond0 bond_mii_monitor Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120 lockdep_rcu_suspicious+0x226/0x340 kernel/locking/lockdep.c:6845 dev_ingress_queue include/linux/rtnetlink.h:156 [inline] dev_activate+0x925/0x1240 net/sched/sch_generic.c:1265 linkwatch_do_dev+0xfb/0x170 net/core/link_watch.c:178 ethtool_op_get_link+0x15/0x60 net/ethtool/ioctl.c:62 bond_check_dev_link+0x1f1/0x3f0 drivers/net/bonding/bond_main.c:873 bond_miimon_inspect drivers/net/bonding/bond_main.c:2740 [inline] bond_mii_monitor+0x49a/0x3170 drivers/net/bonding/bond_main.c:2962 process_one_work kernel/workqueue.c:3229 [inline] process_scheduled_works+0xa66/0x1840 kernel/workqueue.c:3310 worker_thread+0x870/0xd30 kernel/workqueue.c:3391 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:1523 in_atomic(): 0, irqs_disabled(): 0, non_block: 0, pid: 151, name: kworker/u8:5 preempt_count: 0, expected: 0 RCU nest depth: 1, expected: 0 3 locks held by kworker/u8:5/151: #0: ffff8880586b1148 ((wq_completion)bond0#5){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3204 [inline] #0: ffff8880586b1148 ((wq_completion)bond0#5){+.+.}-{0:0}, at: process_scheduled_works+0x93b/0x1840 kernel/workqueue.c:3310 #1: ffffc90002eb7d00 ((work_completion)(&(&bond->mii_work)->work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3205 [inline] #1: ffffc90002eb7d00 ((work_completion)(&(&bond->mii_work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x976/0x1840 kernel/workqueue.c:3310 #2: ffffffff8e937ae0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline] #2: ffffffff8e937ae0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline] #2: ffffffff8e937ae0 (rcu_read_lock){....}-{1:3}, at: bond_mii_monitor+0x174/0x3170 drivers/net/bonding/bond_main.c:2960 CPU: 0 UID: 0 PID: 151 Comm: kworker/u8:5 Not tainted 6.13.0-rc3-syzkaller-00180-g4f619d518db9 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Workqueue: bond0 bond_mii_monitor Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120 __might_resched+0x5d4/0x780 kernel/sched/core.c:8758 down_read+0x8e/0xa40 kernel/locking/rwsem.c:1523 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+0x1a5/0x3f0 kernel/notifier.c:85 netdev_state_change+0x11f/0x1a0 net/core/dev.c:1378 linkwatch_do_dev+0x112/0x170 net/core/link_watch.c:182 ethtool_op_get_link+0x15/0x60 net/ethtool/ioctl.c:62 bond_check_dev_link+0x1f1/0x3f0 drivers/net/bonding/bond_main.c:873 bond_miimon_inspect drivers/net/bonding/bond_main.c:2740 [inline] bond_mii_monitor+0x49a/0x3170 drivers/net/bonding/bond_main.c:2962 process_one_work kernel/workqueue.c:3229 [inline] process_scheduled_works+0xa66/0x1840 kernel/workqueue.c:3310 worker_thread+0x870/0xd30 kernel/workqueue.c:3391 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 ] 6.13.0-rc3-syzkaller-00180-g4f619d518db9 #0 Tainted: G W ----------------------------- kworker/u8:5/151 is trying to lock: ffffffff8fca6510 (net_rwsem){++++}-{4:4}, at: wireless_nlevent_flush net/wireless/wext-core.c:351 [inline] ffffffff8fca6510 (net_rwsem){++++}-{4:4}, at: wext_netdev_notifier_call+0x1f/0x120 net/wireless/wext-core.c:371 other info that might help us debug this: context-{5:5} 3 locks held by kworker/u8:5/151: #0: ffff8880586b1148 ((wq_completion)bond0#5){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3204 [inline] #0: ffff8880586b1148 ((wq_completion)bond0#5){+.+.}-{0:0}, at: process_scheduled_works+0x93b/0x1840 kernel/workqueue.c:3310 #1: ffffc90002eb7d00 ((work_completion)(&(&bond->mii_work)->work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3205 [inline] #1: ffffc90002eb7d00 ((work_completion)(&(&bond->mii_work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x976/0x1840 kernel/workqueue.c:3310 #2: ffffffff8e937ae0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline] #2: ffffffff8e937ae0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline] #2: ffffffff8e937ae0 (rcu_read_lock){....}-{1:3}, at: bond_mii_monitor+0x174/0x3170 drivers/net/bonding/bond_main.c:2960 stack backtrace: CPU: 0 UID: 0 PID: 151 Comm: kworker/u8:5 Tainted: G W 6.13.0-rc3-syzkaller-00180-g4f619d518db9 #0 Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Workqueue: bond0 bond_mii_monitor Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120 print_lock_invalid_wait_context kernel/locking/lockdep.c:4826 [inline] check_wait_context kernel/locking/lockdep.c:4898 [inline] __lock_acquire+0x15a8/0x2100 kernel/locking/lockdep.c:5176 lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5849 down_read+0xb1/0xa40 kernel/locking/rwsem.c:1524 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+0x1a5/0x3f0 kernel/notifier.c:85 netdev_state_change+0x11f/0x1a0 net/core/dev.c:1378 linkwatch_do_dev+0x112/0x170 net/core/link_watch.c:182 ethtool_op_get_link+0x15/0x60 net/ethtool/ioctl.c:62 bond_check_dev_link+0x1f1/0x3f0 drivers/net/bonding/bond_main.c:873 bond_miimon_inspect drivers/net/bonding/bond_main.c:2740 [inline] bond_mii_monitor+0x49a/0x3170 drivers/net/bonding/bond_main.c:2962 process_one_work kernel/workqueue.c:3229 [inline] process_scheduled_works+0xa66/0x1840 kernel/workqueue.c:3310 worker_thread+0x870/0xd30 kernel/workqueue.c:3391 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 batman_adv: batadv0: Local translation table size (88) exceeds maximum packet size (0); Ignoring new local tt entry: 33:33:ff:bf:05:00 batman_adv: batadv0: Local translation table size (88) exceeds maximum packet size (0); Ignoring new local tt entry: 33:33:ff:bf:05:00 batman_adv: batadv0: Local translation table size (88) exceeds maximum packet size (0); Ignoring new local tt entry: 33:33:ff:bf:05:00 batman_adv: batadv0: Local translation table size (88) exceeds maximum packet size (0); Ignoring new local tt entry: 33:33:ff:bf:05:00