================================================================================ 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: 0 PID: 4520 Comm: systemd-udevd Not tainted 5.11.0-rc7-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:1656 usb_hcd_giveback_urb+0x367/0x410 drivers/usb/core/hcd.c:1726 dummy_timer+0x11f4/0x32a0 drivers/usb/gadget/udc/dummy_hcd.c:1971 call_timer_fn+0x1a5/0x630 kernel/time/timer.c:1417 expire_timers kernel/time/timer.c:1462 [inline] __run_timers.part.0+0x67c/0xa10 kernel/time/timer.c:1731 __run_timers kernel/time/timer.c:1712 [inline] run_timer_softirq+0x80/0x120 kernel/time/timer.c:1744 __do_softirq+0x1b0/0x944 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+0x80/0xa0 arch/x86/kernel/irq_64.c:77 invoke_softirq kernel/softirq.c:226 [inline] __irq_exit_rcu kernel/softirq.c:420 [inline] irq_exit_rcu+0x110/0x1a0 kernel/softirq.c:432 sysvec_apic_timer_interrupt+0x43/0xa0 arch/x86/kernel/apic/apic.c:1100 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:629 RIP: 0010:__preempt_count_sub arch/x86/include/asm/preempt.h:84 [inline] RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:161 [inline] RIP: 0010:_raw_spin_unlock_irqrestore+0x25/0x40 kernel/locking/spinlock.c:191 Code: 80 00 00 00 00 55 48 89 fd 48 83 c7 18 53 48 89 f3 48 8b 74 24 10 e8 9a 14 7b fb 48 89 ef e8 f2 c6 7b fb f6 c7 02 75 0c 53 9d <65> ff 0d a4 01 56 7a 5b 5d c3 e8 6c 6a 99 fb eb ed 66 2e 0f 1f 84 RSP: 0018:ffffc900121cfab0 EFLAGS: 00000a02 RAX: 00000000000024fd RBX: 0000000000000a02 RCX: 1ffffffff1195049 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff85abed64 RBP: ffffffff8a59ea08 R08: 0000000000000001 R09: 0000000000000001 R10: ffffffff81455808 R11: 000000000000003f R12: 1ffffffff14b3d40 R13: 0000000000000000 R14: dead000000000100 R15: dffffc0000000000 __debug_check_no_obj_freed lib/debugobjects.c:997 [inline] debug_check_no_obj_freed+0x20c/0x420 lib/debugobjects.c:1018 slab_free_hook mm/slub.c:1539 [inline] slab_free_freelist_hook+0x107/0x150 mm/slub.c:1580 slab_free mm/slub.c:3143 [inline] kmem_cache_free+0x82/0x330 mm/slub.c:3159 anon_vma_chain_free mm/rmap.c:141 [inline] unlink_anon_vmas+0x462/0x830 mm/rmap.c:432 free_pgtables+0x1ab/0x2f0 mm/memory.c:415 exit_mmap+0x2c0/0x5a0 mm/mmap.c:3221 __mmput kernel/fork.c:1082 [inline] mmput+0xce/0x3d0 kernel/fork.c:1103 exit_mm kernel/exit.c:501 [inline] do_exit+0xb6f/0x2940 kernel/exit.c:812 do_group_exit+0x125/0x310 kernel/exit.c:922 __do_sys_exit_group kernel/exit.c:933 [inline] __se_sys_exit_group kernel/exit.c:931 [inline] __x64_sys_exit_group+0x3a/0x50 kernel/exit.c:931 do_syscall_64+0x2d/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7f311e7f8618 Code: Unable to access opcode bytes at RIP 0x7f311e7f85ee. RSP: 002b:00007ffcc7c55188 EFLAGS: 00000202 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 00007ffcc7c55250 RCX: 00007f311e7f8618 RDX: 0000000000000000 RSI: 000000000000003c RDI: 0000000000000000 RBP: 00007ffcc7c55300 R08: 00000000000000e7 R09: fffffffffffffe50 R10: 000055d5c67c1db0 R11: 0000000000000202 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000003 R15: 000000000000000e ================================================================================