==================================================================
BUG: KMSAN: uninit-value in accumulate_sum kernel/sched/fair.c:3131 [inline]
BUG: KMSAN: uninit-value in ___update_load_sum kernel/sched/fair.c:3214 [inline]
BUG: KMSAN: uninit-value in __update_load_avg_cfs_rq kernel/sched/fair.c:3320 [inline]
BUG: KMSAN: uninit-value in update_cfs_rq_load_avg+0x1370/0x1aa0 kernel/sched/fair.c:3696
CPU: 1 PID: 4525 Comm: syz-executor3 Not tainted 4.17.0+ #17
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x185/0x1d0 lib/dump_stack.c:113
 kmsan_report+0x188/0x2a0 mm/kmsan/kmsan.c:1368
 __msan_warning_32+0x70/0xc0 mm/kmsan/kmsan_instr.c:634
 accumulate_sum kernel/sched/fair.c:3131 [inline]
 ___update_load_sum kernel/sched/fair.c:3214 [inline]
 __update_load_avg_cfs_rq kernel/sched/fair.c:3320 [inline]
 update_cfs_rq_load_avg+0x1370/0x1aa0 kernel/sched/fair.c:3696
 update_load_avg+0xe50/0x2cc0 kernel/sched/fair.c:3797
 enqueue_task_fair+0x3c9a/0x4490 kernel/sched/fair.c:5381
 enqueue_task kernel/sched/core.c:751 [inline]
 activate_task kernel/sched/core.c:770 [inline]
 ttwu_activate kernel/sched/core.c:1658 [inline]
 ttwu_do_activate kernel/sched/core.c:1717 [inline]
 ttwu_queue kernel/sched/core.c:1862 [inline]
 try_to_wake_up+0x162f/0x2260 kernel/sched/core.c:2075
 wake_up_process+0x34/0x40 kernel/sched/core.c:2148
 hrtimer_wakeup+0xac/0x100 kernel/time/hrtimer.c:1647
 __run_hrtimer kernel/time/hrtimer.c:1398 [inline]
 __hrtimer_run_queues+0xc54/0x1630 kernel/time/hrtimer.c:1460
 hrtimer_interrupt+0x451/0x13c0 kernel/time/hrtimer.c:1518
 local_apic_timer_interrupt+0x6b/0x250 arch/x86/kernel/apic/apic.c:1025
 smp_apic_timer_interrupt+0x5a/0x90 arch/x86/kernel/apic/apic.c:1053
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:868
 </IRQ>
RIP: 0010:get_current arch/x86/include/asm/current.h:15 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0xd/0x50 kernel/kcov.c:100
RSP: 0018:ffff8801466ffd38 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: ffffffff89feef7d RBX: 0000000000000000 RCX: ffff8801466d8000
RDX: 0000000000000004 RSI: 0000000000000000 RDI: ffff8801466ffd90
RBP: ffff8801466ffdd8 R08: 0000000001080020 R09: 0000000000000002
R10: 0000000000000001 R11: 0000000000000000 R12: ffff8801466d88d8
R13: ffff8801466ffde8 R14: ffffffff814b97a3 R15: 0000000000000000
 hrtimer_nanosleep kernel/time/hrtimer.c:1743 [inline]
 __do_sys_nanosleep kernel/time/hrtimer.c:1775 [inline]
 __se_sys_nanosleep+0x4b3/0x6a0 kernel/time/hrtimer.c:1762
 __x64_sys_nanosleep+0x92/0xc0 kernel/time/hrtimer.c:1762
 do_syscall_64+0x15b/0x230 arch/x86/entry/common.c:287
 entry_SYSCALL_64_after_hwframe+0x63/0xe7
RIP: 0033:0x4811c0
RSP: 002b:0000000000a3ea98 EFLAGS: 00000246 ORIG_RAX: 0000000000000023
RAX: ffffffffffffffda RBX: 000000000008458e RCX: 00000000004811c0
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000a3eaa0
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000ba4940
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
R13: 00000000000006be R14: 0000000000a3f160 R15: 0000000000084529

Uninit was stored to memory at:
 kmsan_save_stack_with_flags mm/kmsan/kmsan.c:287 [inline]
 kmsan_save_stack mm/kmsan/kmsan.c:302 [inline]
 kmsan_internal_chain_origin+0x12b/0x210 mm/kmsan/kmsan.c:692
 __msan_chain_origin+0x69/0xc0 mm/kmsan/kmsan_instr.c:478
 update_load_add kernel/sched/fair.c:123 [inline]
 account_entity_enqueue kernel/sched/fair.c:2644 [inline]
 enqueue_entity kernel/sched/fair.c:4176 [inline]
 enqueue_task_fair+0x15bf/0x4490 kernel/sched/fair.c:5359
 enqueue_task kernel/sched/core.c:751 [inline]
 activate_task kernel/sched/core.c:770 [inline]
 ttwu_activate kernel/sched/core.c:1658 [inline]
 ttwu_do_activate kernel/sched/core.c:1717 [inline]
 ttwu_queue kernel/sched/core.c:1862 [inline]
 try_to_wake_up+0x162f/0x2260 kernel/sched/core.c:2075
 wake_up_process+0x34/0x40 kernel/sched/core.c:2148
 hrtimer_wakeup+0xac/0x100 kernel/time/hrtimer.c:1647
 __run_hrtimer kernel/time/hrtimer.c:1398 [inline]
 __hrtimer_run_queues+0xc54/0x1630 kernel/time/hrtimer.c:1460
 hrtimer_interrupt+0x451/0x13c0 kernel/time/hrtimer.c:1518
 local_apic_timer_interrupt+0x6b/0x250 arch/x86/kernel/apic/apic.c:1025
 smp_apic_timer_interrupt+0x5a/0x90 arch/x86/kernel/apic/apic.c:1053

Uninit was stored to memory at:
 kmsan_save_stack_with_flags mm/kmsan/kmsan.c:287 [inline]
 kmsan_save_stack mm/kmsan/kmsan.c:302 [inline]
 kmsan_internal_chain_origin+0x12b/0x210 mm/kmsan/kmsan.c:692
 __msan_chain_origin+0x69/0xc0 mm/kmsan/kmsan_instr.c:478
 update_load_add kernel/sched/fair.c:123 [inline]
 account_entity_enqueue kernel/sched/fair.c:2644 [inline]
 reweight_entity+0x1610/0x1a30 kernel/sched/fair.c:2794
 update_cfs_group kernel/sched/fair.c:2991 [inline]
 entity_tick kernel/sched/fair.c:4464 [inline]
 task_tick_fair+0x5f8/0x1050 kernel/sched/fair.c:9893
 scheduler_tick+0x28d/0x490 kernel/sched/core.c:3105
 update_process_times+0x157/0x1a0 kernel/time/timer.c:1641
 tick_sched_handle kernel/time/tick-sched.c:164 [inline]
 tick_sched_timer+0x3ba/0x520 kernel/time/tick-sched.c:1274
 __run_hrtimer kernel/time/hrtimer.c:1398 [inline]
 __hrtimer_run_queues+0xc54/0x1630 kernel/time/hrtimer.c:1460
 hrtimer_interrupt+0x451/0x13c0 kernel/time/hrtimer.c:1518
 local_apic_timer_interrupt+0x6b/0x250 arch/x86/kernel/apic/apic.c:1025
 smp_apic_timer_interrupt+0x5a/0x90 arch/x86/kernel/apic/apic.c:1053

Uninit was stored to memory at:
 kmsan_save_stack_with_flags mm/kmsan/kmsan.c:287 [inline]
 kmsan_save_stack mm/kmsan/kmsan.c:302 [inline]
 kmsan_internal_chain_origin+0x12b/0x210 mm/kmsan/kmsan.c:692
 __msan_chain_origin+0x69/0xc0 mm/kmsan/kmsan_instr.c:478
 update_load_set kernel/sched/fair.c:135 [inline]
 reweight_entity+0x128b/0x1a30 kernel/sched/fair.c:2780
 update_cfs_group kernel/sched/fair.c:2991 [inline]
 entity_tick kernel/sched/fair.c:4464 [inline]
 task_tick_fair+0x5f8/0x1050 kernel/sched/fair.c:9893
 scheduler_tick+0x28d/0x490 kernel/sched/core.c:3105
 update_process_times+0x157/0x1a0 kernel/time/timer.c:1641
 tick_sched_handle kernel/time/tick-sched.c:164 [inline]
 tick_sched_timer+0x3ba/0x520 kernel/time/tick-sched.c:1274
 __run_hrtimer kernel/time/hrtimer.c:1398 [inline]
 __hrtimer_run_queues+0xc54/0x1630 kernel/time/hrtimer.c:1460
 hrtimer_interrupt+0x451/0x13c0 kernel/time/hrtimer.c:1518
 local_apic_timer_interrupt+0x6b/0x250 arch/x86/kernel/apic/apic.c:1025
 smp_apic_timer_interrupt+0x5a/0x90 arch/x86/kernel/apic/apic.c:1053

Local variable description: ----flags.i.i.i.i@_raw_spin_lock_irqsave
Variable was created at:
 _raw_spin_lock_irqsave+0x45/0xf0 kernel/locking/spinlock.c:150
 hrtimer_interrupt+0x107/0x13c0 kernel/time/hrtimer.c:1499
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