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BUG: KMSAN: uninit-value in accumulate_sum kernel/sched/fair.c:3143 [inline]
BUG: KMSAN: uninit-value in ___update_load_sum kernel/sched/fair.c:3226 [inline]
BUG: KMSAN: uninit-value in __update_load_avg_cfs_rq kernel/sched/fair.c:3332 [inline]
BUG: KMSAN: uninit-value in update_cfs_rq_load_avg+0x1380/0x1ad0 kernel/sched/fair.c:3708
CPU: 0 PID: 4511 Comm: syz-executor7 Not tainted 4.17.0-rc3+ #88
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x185/0x1d0 lib/dump_stack.c:113
 kmsan_report+0x142/0x240 mm/kmsan/kmsan.c:1067
 __msan_warning_32+0x6c/0xb0 mm/kmsan/kmsan_instr.c:683
 accumulate_sum kernel/sched/fair.c:3143 [inline]
 ___update_load_sum kernel/sched/fair.c:3226 [inline]
 __update_load_avg_cfs_rq kernel/sched/fair.c:3332 [inline]
 update_cfs_rq_load_avg+0x1380/0x1ad0 kernel/sched/fair.c:3708
 update_load_avg+0xe5e/0x2d00 kernel/sched/fair.c:3809
 dequeue_entity kernel/sched/fair.c:4269 [inline]
 dequeue_task_fair+0x13f/0x32f0 kernel/sched/fair.c:5419
 dequeue_task kernel/sched/core.c:759 [inline]
 deactivate_task+0x50a/0x780 kernel/sched/core.c:775
 __schedule+0x164/0x730 kernel/sched/core.c:3446
 schedule+0x1cc/0x2f0 kernel/sched/core.c:3555
 freezable_schedule include/linux/freezer.h:172 [inline]
 do_nanosleep+0x2c3/0x9b0 kernel/time/hrtimer.c:1689
 hrtimer_nanosleep kernel/time/hrtimer.c:1743 [inline]
 __do_sys_nanosleep kernel/time/hrtimer.c:1775 [inline]
 __se_sys_nanosleep+0x41a/0x6a0 kernel/time/hrtimer.c:1762
 __x64_sys_nanosleep+0x92/0xc0 kernel/time/hrtimer.c:1762
 do_syscall_64+0x154/0x220 arch/x86/entry/common.c:287
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x481080
RSP: 002b:0000000000a3ea98 EFLAGS: 00000246 ORIG_RAX: 0000000000000023
RAX: ffffffffffffffda RBX: 00000000000001c1 RCX: 0000000000481080
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000a3eaa0
RBP: 000000000003ffa2 R08: 0000000000000001 R09: 0000000001319940
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000005 R14: 0000000000000480 R15: 000000000003ff63

Uninit was stored to memory at:
 kmsan_save_stack_with_flags mm/kmsan/kmsan.c:278 [inline]
 kmsan_save_stack mm/kmsan/kmsan.c:293 [inline]
 kmsan_internal_chain_origin+0x12b/0x210 mm/kmsan/kmsan.c:684
 __msan_chain_origin+0x69/0xc0 mm/kmsan/kmsan_instr.c:528
 update_load_sub kernel/sched/fair.c:129 [inline]
 account_entity_dequeue kernel/sched/fair.c:2673 [inline]
 dequeue_entity kernel/sched/fair.c:4279 [inline]
 dequeue_task_fair+0x14ea/0x32f0 kernel/sched/fair.c:5419
 dequeue_task kernel/sched/core.c:759 [inline]
 deactivate_task+0x50a/0x780 kernel/sched/core.c:775
 __schedule+0x164/0x730 kernel/sched/core.c:3446
 do_task_dead+0xa4/0xd0 kernel/sched/core.c:3528
 do_exit+0x340e/0x38d0 kernel/exit.c:924
 do_group_exit+0x1a0/0x360 kernel/exit.c:970
 get_signal+0x1320/0x1f20 kernel/signal.c:2469
 do_signal+0xb8/0x1c80 arch/x86/kernel/signal.c:810
 exit_to_usermode_loop arch/x86/entry/common.c:162 [inline]
 prepare_exit_to_usermode+0x271/0x3a0 arch/x86/entry/common.c:196
 syscall_return_slowpath+0xe9/0x700 arch/x86/entry/common.c:265
 do_syscall_64+0x1a6/0x220 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
Uninit was stored to memory at:
 kmsan_save_stack_with_flags mm/kmsan/kmsan.c:278 [inline]
 kmsan_save_stack mm/kmsan/kmsan.c:293 [inline]
 kmsan_internal_chain_origin+0x12b/0x210 mm/kmsan/kmsan.c:684
 __msan_chain_origin+0x69/0xc0 mm/kmsan/kmsan_instr.c:528
 update_load_set kernel/sched/fair.c:135 [inline]
 reweight_entity+0x128b/0x1a30 kernel/sched/fair.c:2792
 update_cfs_group kernel/sched/fair.c:3003 [inline]
 entity_tick kernel/sched/fair.c:4476 [inline]
 task_tick_fair+0x5f8/0x1050 kernel/sched/fair.c:9948
 scheduler_tick+0x288/0x480 kernel/sched/core.c:3077
 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+0xc03/0x15d0 kernel/time/hrtimer.c:1460
 hrtimer_interrupt+0x451/0x13c0 kernel/time/hrtimer.c:1518
 local_apic_timer_interrupt+0x66/0x230 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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