=====================================================
BUG: KMSAN: uninit-value in do_profile_hits kernel/profile.c:309 [inline]
BUG: KMSAN: uninit-value in profile_hits+0xae5/0x11d0 kernel/profile.c:399
 do_profile_hits kernel/profile.c:309 [inline]
 profile_hits+0xae5/0x11d0 kernel/profile.c:399
 profile_hit include/linux/profile.h:63 [inline]
 profile_tick+0x202/0x210 kernel/profile.c:409
 tick_sched_handle kernel/time/tick-sched.c:227 [inline]
 tick_sched_timer+0x466/0x5a0 kernel/time/tick-sched.c:1421
 __run_hrtimer+0x4a7/0xd60 kernel/time/hrtimer.c:1685
 __hrtimer_run_queues kernel/time/hrtimer.c:1749 [inline]
 hrtimer_interrupt+0x6cb/0x1bd0 kernel/time/hrtimer.c:1811
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1086 [inline]
 __sysvec_apic_timer_interrupt+0xf5/0x460 arch/x86/kernel/apic/apic.c:1103
 sysvec_apic_timer_interrupt+0x79/0x90 arch/x86/kernel/apic/apic.c:1097
 asm_sysvec_apic_timer_interrupt+0x12/0x20
 _raw_spin_unlock_irqrestore+0x62/0x80 kernel/locking/spinlock.c:195
 spin_unlock_irqrestore include/linux/spinlock.h:418 [inline]
 unlock_page_lruvec_irqrestore include/linux/memcontrol.h:1516 [inline]
 __pagevec_lru_add+0x58a/0x680 mm/swap.c:1055
 lru_cache_add+0x3cc/0x410 mm/swap.c:453
 add_to_page_cache_lru+0x4f5/0x5c0 mm/filemap.c:1000
 page_cache_ra_unbounded+0x726/0xf60 mm/readahead.c:222
 do_page_cache_ra+0x26b/0x280 mm/readahead.c:269
 do_sync_mmap_readahead+0xac5/0xc50 mm/filemap.c:2981
 filemap_fault+0x62a/0x1610 mm/filemap.c:3074
 __do_fault mm/memory.c:3860 [inline]
 do_read_fault mm/memory.c:4184 [inline]
 do_fault+0x11cb/0x2520 mm/memory.c:4312
 handle_pte_fault mm/memory.c:4570 [inline]
 __handle_mm_fault mm/memory.c:4705 [inline]
 handle_mm_fault+0x3c5c/0x4740 mm/memory.c:4803
 do_user_addr_fault+0xf85/0x1f10 arch/x86/mm/fault.c:1417
 handle_page_fault arch/x86/mm/fault.c:1505 [inline]
 exc_page_fault+0x69/0x120 arch/x86/mm/fault.c:1562
 asm_exc_page_fault+0x1e/0x30

Local variable blocks created at:
 ext4_mpage_readpages+0x118/0x4160 fs/ext4/readpage.c:237
 ext4_readahead+0x1d8/0x1f0 fs/ext4/inode.c:3202
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