================================================================================ UBSAN: shift-out-of-bounds in drivers/hid/hid-core.c:1315:20 shift exponent 4294967295 is too large for 32-bit type 'int' CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.10.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:79 [inline] dump_stack+0x107/0x163 lib/dump_stack.c:120 ubsan_epilogue+0xb/0x5a lib/ubsan.c:148 __ubsan_handle_shift_out_of_bounds.cold+0xb1/0x181 lib/ubsan.c:395 snto32.cold+0x37/0x3c drivers/hid/hid-core.c:1315 hid_input_field drivers/hid/hid-core.c:1548 [inline] hid_report_raw_event+0x7a9/0x11b0 drivers/hid/hid-core.c:1783 hid_input_report+0x360/0x4c0 drivers/hid/hid-core.c:1850 hid_irq_in+0x50e/0x690 drivers/hid/usbhid/hid-core.c:284 __usb_hcd_giveback_urb+0x2b0/0x5c0 drivers/usb/core/hcd.c:1657 usb_hcd_giveback_urb+0x38c/0x430 drivers/usb/core/hcd.c:1728 dummy_timer+0x11f4/0x32a0 drivers/usb/gadget/udc/dummy_hcd.c:1971 call_timer_fn+0x1a5/0x710 kernel/time/timer.c:1417 expire_timers kernel/time/timer.c:1462 [inline] __run_timers.part.0+0x692/0xa80 kernel/time/timer.c:1731 __run_timers kernel/time/timer.c:1712 [inline] run_timer_softirq+0xb3/0x1d0 kernel/time/timer.c:1744 __do_softirq+0x2bc/0xa77 kernel/softirq.c:343 asm_call_irq_on_stack+0xf/0x20 __run_on_irqstack arch/x86/include/asm/irq_stack.h:26 [inline] run_on_irqstack_cond arch/x86/include/asm/irq_stack.h:77 [inline] do_softirq_own_stack+0xaa/0xd0 arch/x86/kernel/irq_64.c:77 invoke_softirq kernel/softirq.c:226 [inline] __irq_exit_rcu+0x17f/0x200 kernel/softirq.c:420 irq_exit_rcu+0x5/0x20 kernel/softirq.c:432 sysvec_apic_timer_interrupt+0x4d/0x100 arch/x86/kernel/apic/apic.c:1096 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:628 RIP: 0010:__raw_spin_unlock_irq include/linux/spinlock_api_smp.h:169 [inline] RIP: 0010:_raw_spin_unlock_irq+0x25/0x40 kernel/locking/spinlock.c:199 Code: 0f 1f 44 00 00 55 48 8b 74 24 08 48 89 fd 48 83 c7 18 e8 ee 8e 3f f8 48 89 ef e8 36 42 40 f8 e8 a1 c2 5f f8 fb bf 01 00 00 00 a6 39 34 f8 65 8b 05 ef c1 e9 76 85 c0 74 02 5d c3 e8 0b 18 e8 RSP: 0018:ffffc90000d3fcc0 EFLAGS: 00000206 RAX: 0000000000179359 RBX: 0000000000000402 RCX: 1ffffffff1afa231 RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000001 RBP: ffff8880b9d34d00 R08: 0000000000000001 R09: 0000000000000001 R10: ffffffff8177f098 R11: 0000000000000001 R12: ffff8880b9d34d00 R13: ffff8880131f8400 R14: 0000000000000000 R15: ffff8880b9d34d18 finish_lock_switch kernel/sched/core.c:4079 [inline] finish_task_switch.isra.0+0x18b/0xbd0 kernel/sched/core.c:4196 context_switch kernel/sched/core.c:4330 [inline] __schedule+0x8f3/0x21b0 kernel/sched/core.c:5078 schedule_idle+0x53/0x90 kernel/sched/core.c:5185 do_idle+0x2fc/0x590 kernel/sched/idle.c:327 cpu_startup_entry+0x14/0x20 kernel/sched/idle.c:396 start_secondary+0x274/0x350 arch/x86/kernel/smpboot.c:271 secondary_startup_64_no_verify+0xb0/0xbb ================================================================================