------------[ cut here ]------------ RTNL: assertion failed at ./include/net/netdev_lock.h (72) WARNING: CPU: 1 PID: 3938 at ./include/net/netdev_lock.h:72 netdev_ops_assert_locked include/net/netdev_lock.h:72 [inline] WARNING: CPU: 1 PID: 3938 at ./include/net/netdev_lock.h:72 __linkwatch_sync_dev+0xa0/0xa8 net/core/link_watch.c:279 Modules linked in: CPU: 1 UID: 0 PID: 3938 Comm: kworker/u8:9 Not tainted syzkaller #0 PREEMPT Hardware name: linux,dummy-virt (DT) Workqueue: bond0 bond_mii_monitor pstate: 61402009 (nZCv daif +PAN -UAO -TCO +DIT -SSBS BTYPE=--) pc : netdev_ops_assert_locked include/net/netdev_lock.h:72 [inline] pc : __linkwatch_sync_dev+0xa0/0xa8 net/core/link_watch.c:279 lr : netdev_ops_assert_locked include/net/netdev_lock.h:72 [inline] lr : __linkwatch_sync_dev+0xa0/0xa8 net/core/link_watch.c:279 sp : ffff80008a7c3c60 x29: ffff80008a7c3c60 x28: 0000000000000003 x27: 0000000000000001 x26: 0000000000000000 x25: 0000000000000000 x24: 0000000000006667 x23: f3f000000aed8d70 x22: 00000000ffffffff x21: 0000000000000000 x20: 0000000000000000 x19: f9f000000ae73000 x18: 00000000ffffffff x17: 0000000000000000 x16: 0000000000000000 x15: ffff80008a7c3860 x14: 00000000ffffffea x13: ffff80008a7c3928 x12: ffff8000829ef250 x11: 0000000000000001 x10: 0000000000000001 x9 : 000000000002ffe8 x8 : ffffffffffffffff x7 : ffff800082913bb8 x6 : 0000000000000002 x5 : ffff800082913000 x4 : 0000000000000002 x3 : 0000000000000001 x2 : 0000000000000000 x1 : 0000000000000000 x0 : f0f000000af53780 Call trace: netdev_ops_assert_locked include/net/netdev_lock.h:72 [inline] (P) __linkwatch_sync_dev+0xa0/0xa8 net/core/link_watch.c:279 (P) ethtool_op_get_link+0x18/0x34 net/ethtool/ioctl.c:63 bond_check_dev_link+0x128/0x1cc drivers/net/bonding/bond_main.c:865 bond_miimon_inspect drivers/net/bonding/bond_main.c:2762 [inline] bond_mii_monitor+0x110/0x91c drivers/net/bonding/bond_main.c:2984 process_one_work+0x178/0x2cc kernel/workqueue.c:3236 process_scheduled_works kernel/workqueue.c:3319 [inline] worker_thread+0x250/0x358 kernel/workqueue.c:3400 kthread+0x130/0x1fc kernel/kthread.c:463 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:860 ---[ end trace 0000000000000000 ]---