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BUG: KMSAN: uninit-value in accumulate_sum kernel/sched/fair.c:3146 [inline]
BUG: KMSAN: uninit-value in ___update_load_sum kernel/sched/fair.c:3229 [inline]
BUG: KMSAN: uninit-value in __update_load_avg_cfs_rq kernel/sched/fair.c:3308 [inline]
BUG: KMSAN: uninit-value in update_cfs_rq_load_avg+0x1344/0x1aa0 kernel/sched/fair.c:3684
CPU: 1 PID: 4526 Comm: syz-executor768 Not tainted 4.16.0+ #87
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0x185/0x1d0 lib/dump_stack.c:53
 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:3146 [inline]
 ___update_load_sum kernel/sched/fair.c:3229 [inline]
 __update_load_avg_cfs_rq kernel/sched/fair.c:3308 [inline]
 update_cfs_rq_load_avg+0x1344/0x1aa0 kernel/sched/fair.c:3684
 update_load_avg+0xde6/0x2c20 kernel/sched/fair.c:3785
 dequeue_entity kernel/sched/fair.c:4117 [inline]
 dequeue_task_fair+0x12f/0x2ea0 kernel/sched/fair.c:5266
 dequeue_task kernel/sched/core.c:785 [inline]
 deactivate_task+0x50d/0x780 kernel/sched/core.c:801
 __schedule+0x164/0x730 kernel/sched/core.c:3396
 schedule+0x1cc/0x2f0 kernel/sched/core.c:3505
 freezable_schedule include/linux/freezer.h:172 [inline]
 do_nanosleep+0x2c3/0x9b0 kernel/time/hrtimer.c:1640
 hrtimer_nanosleep kernel/time/hrtimer.c:1694 [inline]
 SYSC_nanosleep+0x420/0x6a0 kernel/time/hrtimer.c:1726
 SyS_nanosleep+0x46/0x70 kernel/time/hrtimer.c:1713
 do_syscall_64+0x309/0x430 arch/x86/entry/common.c:287
 entry_SYSCALL_64_after_hwframe+0x3d/0xa2
RIP: 0033:0x4478c0
RSP: 002b:000000000080ef38 EFLAGS: 00000246 ORIG_RAX: 0000000000000023
RAX: ffffffffffffffda RBX: 000000000000035a RCX: 00000000004478c0
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 000000000080ef40
RBP: 000000000080f070 R08: 0000000000000001 R09: 0000000001f3d880
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000b46
R13: 0000000000000b46 R14: 000000000003b122 R15: 000000000080f098

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_add kernel/sched/fair.c:138 [inline]
 account_entity_enqueue kernel/sched/fair.c:2659 [inline]
 reweight_entity+0x1607/0x1a30 kernel/sched/fair.c:2809
 update_cfs_group kernel/sched/fair.c:3006 [inline]
 entity_tick kernel/sched/fair.c:4324 [inline]
 task_tick_fair+0x5f1/0x1040 kernel/sched/fair.c:9452
 scheduler_tick+0x28b/0x490 kernel/sched/core.c:3091
 update_process_times+0x157/0x1a0 kernel/time/timer.c:1641
 tick_sched_handle kernel/time/tick-sched.c:162 [inline]
 tick_sched_timer+0x33b/0x4b0 kernel/time/tick-sched.c:1194
 __run_hrtimer kernel/time/hrtimer.c:1349 [inline]
 __hrtimer_run_queues+0xc03/0x15d0 kernel/time/hrtimer.c:1411
 hrtimer_interrupt+0x426/0xaf0 kernel/time/hrtimer.c:1469
 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
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:150 [inline]
 reweight_entity+0x126b/0x1a30 kernel/sched/fair.c:2795
 update_cfs_group kernel/sched/fair.c:3006 [inline]
 entity_tick kernel/sched/fair.c:4324 [inline]
 task_tick_fair+0x5f1/0x1040 kernel/sched/fair.c:9452
 scheduler_tick+0x28b/0x490 kernel/sched/core.c:3091
 update_process_times+0x157/0x1a0 kernel/time/timer.c:1641
 tick_sched_handle kernel/time/tick-sched.c:162 [inline]
 tick_sched_timer+0x33b/0x4b0 kernel/time/tick-sched.c:1194
 __run_hrtimer kernel/time/hrtimer.c:1349 [inline]
 __hrtimer_run_queues+0xc03/0x15d0 kernel/time/hrtimer.c:1411
 hrtimer_interrupt+0x426/0xaf0 kernel/time/hrtimer.c:1469
 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+0x101/0xaf0 kernel/time/hrtimer.c:1450
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