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BUG: KMSAN: uninit-value in do_profile_hits kernel/profile.c:308 [inline]
BUG: KMSAN: uninit-value in profile_hits+0xbd1/0x12f0 kernel/profile.c:398
CPU: 0 PID: 1218 Comm: kworker/u4:15 Not tainted 5.12.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: events_unbound call_usermodehelper_exec_work
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:79 [inline]
 dump_stack+0x24c/0x2e0 lib/dump_stack.c:120
 kmsan_report+0xfb/0x1e0 mm/kmsan/kmsan_report.c:121
 __msan_warning+0x5c/0xa0 mm/kmsan/kmsan_instr.c:197
 do_profile_hits kernel/profile.c:308 [inline]
 profile_hits+0xbd1/0x12f0 kernel/profile.c:398
 profile_hit include/linux/profile.h:64 [inline]
 profile_tick+0x215/0x220 kernel/profile.c:408
 tick_sched_handle kernel/time/tick-sched.c:227 [inline]
 tick_sched_timer+0x472/0x5b0 kernel/time/tick-sched.c:1369
 __run_hrtimer+0x48b/0xd20 kernel/time/hrtimer.c:1537
 __hrtimer_run_queues kernel/time/hrtimer.c:1601 [inline]
 hrtimer_interrupt+0x6e2/0x1b50 kernel/time/hrtimer.c:1663
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1089 [inline]
 __sysvec_apic_timer_interrupt+0xfd/0x470 arch/x86/kernel/apic/apic.c:1106
 sysvec_apic_timer_interrupt+0xc1/0xf0 arch/x86/kernel/apic/apic.c:1100
 </IRQ>
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:650
RIP: 0010:_raw_spin_unlock_irqrestore+0x62/0x80 kernel/locking/spinlock.c:192
Code: 00 00 41 c6 04 24 00 81 e3 00 02 00 00 41 81 e7 00 02 00 00 48 85 db 74 0a f7 d3 44 21 fb 48 85 db 74 16 4d 85 ff 74 01 fb 5b <41> 5c 41 5e 41 5f 5d c3 e8 21 ca b6 f2 eb be 44 89 f7 e8 17 ca b6
RSP: 0018:ffff88810496bae0 EFLAGS: 00000206
RAX: ffff88823feee980 RBX: 0000000000000000 RCX: 000000023fe4e980
RDX: ffff88823fe4e980 RSI: 0000000000000270 RDI: ffff88813fc95980
RBP: ffff88810496baf8 R08: ffffea000000000f R09: ffff88813fffa000
R10: 000000009139edcd R11: 0000000000000000 R12: ffff88813fc95980
R13: 0000000000000298 R14: 0000000000000000 R15: 0000000000000200
 remove_entity_load_avg kernel/sched/fair.c:3866 [inline]
 task_dead_fair+0x2f1/0x430 kernel/sched/fair.c:6830
 finish_task_switch+0x268/0x2d0 kernel/sched/core.c:4233
 context_switch kernel/sched/core.c:4336 [inline]
 __schedule+0x54b/0x5c0 kernel/sched/core.c:5090
 preempt_schedule_common kernel/sched/core.c:5250 [inline]
 __cond_resched+0x43/0xa0 kernel/sched/core.c:6999
 _cond_resched include/linux/sched.h:1898 [inline]
 process_one_work+0x128d/0x1fe0 kernel/workqueue.c:2301
 worker_thread+0x10ec/0x2340 kernel/workqueue.c:2421
 kthread+0x521/0x560 kernel/kthread.c:292
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294

Local variable ----vfork@kernel_clone created at:
 kernel_clone+0x79/0x1350 kernel/fork.c:2464
 kernel_clone+0x79/0x1350 kernel/fork.c:2464
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