------------[ cut here ]------------ NETDEV WATCHDOG: usb0 (cdc_ether): transmit queue 0 timed out WARNING: CPU: 0 PID: 29063 at net/sched/sch_generic.c:525 dev_watchdog+0x5ac/0x648 net/sched/sch_generic.c:525 Modules linked in: CPU: 0 PID: 29063 Comm: syz-executor.0 Not tainted 6.3.0-rc6-syzkaller-00173-g7a934f4bd7d6 #0 Hardware name: linux,dummy-virt (DT) pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : dev_watchdog+0x5ac/0x648 net/sched/sch_generic.c:525 lr : dev_watchdog+0x5ac/0x648 net/sched/sch_generic.c:525 sp : ffff800008007bb0 x29: ffff800008007bb0 x28: ffff000014630420 x27: ffff80000e16cb70 x26: 0000000000000000 x25: ffff000014630508 x24: 0000000000000000 x23: ffff000014630000 x22: 0000000000000000 x21: ffff00000dce0400 x20: ffff000014630558 x19: ffff80000e13f200 x18: 0000000000000000 x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000000000 x12: ffff60000d5295d3 x11: 1fffe0000d5295d2 x10: ffff60000d5295d2 x9 : dfff800000000000 x8 : ffff00006a94ae93 x7 : 00009ffff2ad6a2e x6 : 0000000000000001 x5 : ffff00006a94ae90 x4 : 1fffe000025e8361 x3 : dfff800000000000 x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffff000012f41b00 Call trace: dev_watchdog+0x5ac/0x648 net/sched/sch_generic.c:525 call_timer_fn+0x1c4/0x770 kernel/time/timer.c:1700 expire_timers+0x378/0x4d8 kernel/time/timer.c:1751 __run_timers kernel/time/timer.c:2022 [inline] __run_timers kernel/time/timer.c:1995 [inline] run_timer_softirq+0x43c/0x68c kernel/time/timer.c:2035 _stext+0x27c/0xd70 ____do_softirq+0x10/0x1c arch/arm64/kernel/irq.c:80 call_on_irq_stack+0x24/0x4c arch/arm64/kernel/entry.S:899 do_softirq_own_stack+0x1c/0x2c arch/arm64/kernel/irq.c:85 invoke_softirq kernel/softirq.c:452 [inline] __irq_exit_rcu+0x208/0x4e8 kernel/softirq.c:650 irq_exit_rcu+0x14/0x80 kernel/softirq.c:662 __el1_irq arch/arm64/kernel/entry-common.c:472 [inline] el1_interrupt+0x38/0x54 arch/arm64/kernel/entry-common.c:486 el1h_64_irq_handler+0x18/0x24 arch/arm64/kernel/entry-common.c:491 el1h_64_irq+0x64/0x68 arch/arm64/kernel/entry.S:587 __daif_local_irq_restore arch/arm64/include/asm/irqflags.h:182 [inline] arch_local_irq_restore arch/arm64/include/asm/irqflags.h:202 [inline] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline] _raw_spin_unlock_irqrestore+0x48/0xb4 kernel/locking/spinlock.c:194 debug_object_free lib/debugobjects.c:856 [inline] debug_object_free+0x1c8/0x364 lib/debugobjects.c:829 destroy_hrtimer_on_stack kernel/time/hrtimer.c:452 [inline] hrtimer_nanosleep+0x20c/0x294 kernel/time/hrtimer.c:2112 common_nsleep+0x78/0xd0 kernel/time/posix-timers.c:1236 __do_sys_clock_nanosleep kernel/time/posix-timers.c:1277 [inline] __se_sys_clock_nanosleep kernel/time/posix-timers.c:1254 [inline] __arm64_sys_clock_nanosleep+0x230/0x354 kernel/time/posix-timers.c:1254 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x6c/0x260 arch/arm64/kernel/syscall.c:52 el0_svc_common.constprop.0+0xc4/0x254 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x50/0x124 arch/arm64/kernel/syscall.c:193 el0_svc+0x54/0x140 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0xb8/0xbc arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:591 irq event stamp: 17403 hardirqs last enabled at (17402): [] __up_console_sem+0x74/0x94 kernel/printk/printk.c:345 hardirqs last disabled at (17403): [] el1_dbg+0x24/0x9c arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (17364): [] fpsimd_restore_current_state+0x3c/0x10c arch/arm64/kernel/fpsimd.c:1785 softirqs last disabled at (17379): [] ____do_softirq+0x10/0x1c arch/arm64/kernel/irq.c:80 ---[ end trace 0000000000000000 ]---