------------[ cut here ]------------ Ignoring spurious kernel translation fault at virtual address 000000000000001c WARNING: CPU: 0 PID: 25671 at arch/arm64/mm/fault.c:373 __do_kernel_fault+0x16c/0x1dc arch/arm64/mm/fault.c:373 Modules linked in: CPU: 0 PID: 25671 Comm: kworker/u4:2 Not tainted 5.12.0-rc2-syzkaller #0 Hardware name: linux,dummy-virt (DT) Workqueue: usbip_event event_handler pstate: 60400009 (nZCv daif +PAN -UAO -TCO BTYPE=--) pc : __do_kernel_fault+0x16c/0x1dc arch/arm64/mm/fault.c:373 lr : __do_kernel_fault+0x16c/0x1dc arch/arm64/mm/fault.c:373 sp : ffff8000147d3a30 x29: ffff8000147d3a30 x28: faff00000b43cc40 x27: ffff8000139c8820 x26: faff00002abc026c x25: 0000000000000000 x24: 0000000000000000 x23: 0000000096000007 x22: 000000000000001c x21: 0000000000000025 x20: ffff8000147d3b60 x19: 0000000096000007 x18: 00000000fffffffa x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000020 x14: 6c656e72656b2073 x13: 0000000000001580 x12: ffff8000147d36e0 x11: ffff800013a7b570 x10: 00000000ffffe000 x9 : ffff800013a7b570 x8 : ffff8000139cb570 x7 : ffff800013a7b570 x6 : 0000000000000000 x5 : ffff00007fbc1948 x4 : 0000000000015ff5 x3 : 0000000000000001 x2 : 0000000000000000 x1 : 0000000000000000 x0 : faff00000b43cc40 Call trace: __do_kernel_fault+0x16c/0x1dc arch/arm64/mm/fault.c:373 do_page_fault+0x1b8/0x394 arch/arm64/mm/fault.c:661 do_translation_fault+0xb0/0xc0 arch/arm64/mm/fault.c:672 do_mem_abort+0x44/0xbc arch/arm64/mm/fault.c:805 el1_abort+0x40/0x6c arch/arm64/kernel/entry-common.c:167 el1_sync_handler+0xac/0xd0 arch/arm64/kernel/entry-common.c:259 el1_sync+0x70/0x100 arch/arm64/kernel/entry.S:656 __lse_atomic_fetch_add_relaxed arch/arm64/include/asm/atomic_lse.h:52 [inline] arch_atomic_fetch_add_relaxed arch/arm64/include/asm/atomic.h:49 [inline] atomic_fetch_add_relaxed include/asm-generic/atomic-instrumented.h:143 [inline] __refcount_add include/linux/refcount.h:193 [inline] __refcount_inc include/linux/refcount.h:250 [inline] refcount_inc include/linux/refcount.h:267 [inline] get_task_struct include/linux/sched/task.h:104 [inline] kthread_stop+0x28/0x15c kernel/kthread.c:616 vhci_shutdown_connection+0x44/0x370 drivers/usb/usbip/vhci_hcd.c:1019 event_handler+0xc0/0x1ac drivers/usb/usbip/usbip_event.c:78 process_one_work+0x1d8/0x364 kernel/workqueue.c:2275 worker_thread+0x70/0x434 kernel/workqueue.c:2421 kthread+0x174/0x180 kernel/kthread.c:292 ret_from_fork+0x10/0x34 arch/arm64/kernel/entry.S:958