------------[ cut here ]------------ WARNING: CPU: 1 PID: 8541 at kernel/workqueue.c:2259 current_wq_worker kernel/workqueue_internal.h:69 [inline] WARNING: CPU: 1 PID: 8541 at kernel/workqueue.c:2259 is_chained_work kernel/workqueue.c:2201 [inline] WARNING: CPU: 1 PID: 8541 at kernel/workqueue.c:2259 __queue_work+0xe50/0x1308 kernel/workqueue.c:2258 Modules linked in: CPU: 1 UID: 0 PID: 8541 Comm: syz.2.273 Not tainted 6.11.0-rc5-syzkaller-gdf54f4a16f82 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 pstate: 404000c5 (nZcv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : __queue_work+0xe50/0x1308 kernel/workqueue_internal.h:69 lr : current_wq_worker kernel/workqueue_internal.h:69 [inline] lr : is_chained_work kernel/workqueue.c:2201 [inline] lr : __queue_work+0xe50/0x1308 kernel/workqueue.c:2258 sp : ffff800080017b20 x29: ffff800080017b70 x28: 1fffe0001a16c3c9 x27: dfff800000000000 x26: dfff800000000000 x25: ffff0000d48e0800 x24: 0000000000000008 x23: 1fffe0001a16c3c9 x22: ffff0000d48e09c0 x21: 0000000000000100 x20: ffff0000d0b61e40 x19: ffff0000d9b20930 x18: 1fffe0003679e7e6 x17: ffff80012489c000 x16: ffff80008301a844 x15: 0000000000000002 x14: ffff80008f510510 x13: dfff800000000000 x12: 00000000b1b0b613 x11: 00000000fed0fc6e x10: 0000000000ff0100 x9 : 0000000000000000 x8 : ffff0000d0b61e40 x7 : ffff80008045145c x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000001 x3 : ffff80008dbbe720 x2 : ffff0000d9b20930 x1 : 0000000000000100 x0 : 0000000000000000 Call trace: current_wq_worker kernel/workqueue_internal.h:69 [inline] is_chained_work kernel/workqueue.c:2201 [inline] __queue_work+0xe50/0x1308 kernel/workqueue.c:2258 delayed_work_timer_fn+0x74/0x90 kernel/workqueue.c:2487 call_timer_fn+0x1b4/0x8e8 kernel/time/timer.c:1792 expire_timers kernel/time/timer.c:1838 [inline] __run_timers kernel/time/timer.c:2417 [inline] __run_timer_base+0x59c/0x7b4 kernel/time/timer.c:2428 run_timer_base kernel/time/timer.c:2437 [inline] run_timer_softirq+0xcc/0x194 kernel/time/timer.c:2447 handle_softirqs+0x2e4/0xbfc kernel/softirq.c:554 __do_softirq+0x14/0x20 kernel/softirq.c:588 ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:81 call_on_irq_stack+0x24/0x4c arch/arm64/kernel/entry.S:889 do_softirq_own_stack+0x20/0x2c arch/arm64/kernel/irq.c:86 invoke_softirq kernel/softirq.c:435 [inline] __irq_exit_rcu+0x1d8/0x434 kernel/softirq.c:637 irq_exit_rcu+0x14/0x84 kernel/softirq.c:649 __el1_irq arch/arm64/kernel/entry-common.c:537 [inline] el1_interrupt+0x38/0x68 arch/arm64/kernel/entry-common.c:551 el1h_64_irq_handler+0x18/0x24 arch/arm64/kernel/entry-common.c:556 el1h_64_irq+0x64/0x68 arch/arm64/kernel/entry.S:594 __daif_local_irq_enable arch/arm64/include/asm/irqflags.h:26 [inline] arch_local_irq_enable arch/arm64/include/asm/irqflags.h:48 [inline] preempt_schedule_irq+0x78/0x188 kernel/sched/core.c:6850 arm64_preempt_schedule_irq arch/arm64/kernel/entry-common.c:301 [inline] __el1_irq arch/arm64/kernel/entry-common.c:539 [inline] el1_interrupt+0x4c/0x68 arch/arm64/kernel/entry-common.c:551 el1h_64_irq_handler+0x18/0x24 arch/arm64/kernel/entry-common.c:556 el1h_64_irq+0x64/0x68 arch/arm64/kernel/entry.S:594 __daif_local_irq_restore arch/arm64/include/asm/irqflags.h:175 [inline] arch_local_irq_restore arch/arm64/include/asm/irqflags.h:195 [inline] lockdep_unregister_key+0x3b4/0x454 kernel/locking/lockdep.c:6484 __qdisc_destroy+0x170/0x4d8 net/sched/sch_generic.c:1079 qdisc_put+0x90/0x124 net/sched/sch_generic.c:1105 taprio_attach+0x20c/0x338 net/sched/sch_taprio.c:2146 qdisc_graft+0xfd4/0x1220 net/sched/sch_api.c:1176 tc_modify_qdisc+0xcc0/0x1870 net/sched/sch_api.c:1788 rtnetlink_rcv_msg+0x630/0xa9c net/core/rtnetlink.c:6647 netlink_rcv_skb+0x214/0x3c4 net/netlink/af_netlink.c:2550 rtnetlink_rcv+0x28/0x38 net/core/rtnetlink.c:6665 netlink_unicast_kernel net/netlink/af_netlink.c:1331 [inline] netlink_unicast+0x668/0x8a4 net/netlink/af_netlink.c:1357 netlink_sendmsg+0x7a4/0xa8c net/netlink/af_netlink.c:1901 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg net/socket.c:745 [inline] ____sys_sendmsg+0x56c/0x840 net/socket.c:2597 ___sys_sendmsg net/socket.c:2651 [inline] __sys_sendmsg+0x26c/0x33c net/socket.c:2680 __do_sys_sendmsg net/socket.c:2689 [inline] __se_sys_sendmsg net/socket.c:2687 [inline] __arm64_sys_sendmsg+0x80/0x94 net/socket.c:2687 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:712 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:730 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598 irq event stamp: 1191 hardirqs last enabled at (1190): [] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline] hardirqs last enabled at (1190): [] _raw_spin_unlock_irqrestore+0x38/0x98 kernel/locking/spinlock.c:194 hardirqs last disabled at (1191): [] __raw_spin_lock_irq include/linux/spinlock_api_smp.h:117 [inline] hardirqs last disabled at (1191): [] _raw_spin_lock_irq+0x28/0x70 kernel/locking/spinlock.c:170 softirqs last enabled at (1154): [] spin_unlock_bh include/linux/spinlock.h:396 [inline] softirqs last enabled at (1154): [] dev_graft_qdisc+0x11c/0x138 net/sched/sch_generic.c:1141 softirqs last disabled at (1167): [] __do_softirq+0x14/0x20 kernel/softirq.c:588 ---[ end trace 0000000000000000 ]---