===================================================== BUG: KMSAN: uninit-value in profile_hit include/linux/profile.h:53 [inline] BUG: KMSAN: uninit-value in profile_tick+0x1ae/0x1b0 kernel/profile.c:339 profile_hit include/linux/profile.h:53 [inline] profile_tick+0x1ae/0x1b0 kernel/profile.c:339 tick_sched_handle kernel/time/tick-sched.c:277 [inline] tick_nohz_handler+0x588/0x690 kernel/time/tick-sched.c:297 __run_hrtimer kernel/time/hrtimer.c:1687 [inline] __hrtimer_run_queues+0x56f/0xe40 kernel/time/hrtimer.c:1751 hrtimer_interrupt+0x3ab/0x1490 kernel/time/hrtimer.c:1813 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1032 [inline] __sysvec_apic_timer_interrupt+0xa6/0x3a0 arch/x86/kernel/apic/apic.c:1049 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline] sysvec_apic_timer_interrupt+0x7e/0x90 arch/x86/kernel/apic/apic.c:1043 asm_sysvec_apic_timer_interrupt+0x1f/0x30 arch/x86/include/asm/idtentry.h:702 __preempt_count_dec_and_test arch/x86/include/asm/preempt.h:94 [inline] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline] _raw_spin_unlock_irqrestore+0x33/0x60 kernel/locking/spinlock.c:194 spin_unlock_irqrestore include/linux/spinlock.h:406 [inline] rmqueue_bulk mm/page_alloc.c:2155 [inline] __rmqueue_pcplist+0x4c2d/0x5600 mm/page_alloc.c:2826 rmqueue_pcplist+0x179/0x5e0 mm/page_alloc.c:2868 rmqueue+0x55/0x1260 mm/page_alloc.c:2905 get_page_from_freelist+0xe6d/0x15f0 mm/page_alloc.c:3314 __alloc_pages+0x8a7/0xe70 mm/page_alloc.c:4575 alloc_pages_mpol+0x299/0x990 mm/mempolicy.c:2264 vma_alloc_folio+0x418/0x680 mm/mempolicy.c:2303 alloc_anon_folio mm/memory.c:4375 [inline] do_anonymous_page mm/memory.c:4433 [inline] do_pte_missing mm/memory.c:3878 [inline] handle_pte_fault mm/memory.c:5300 [inline] __handle_mm_fault mm/memory.c:5441 [inline] handle_mm_fault+0x9e1c/0xce10 mm/memory.c:5606 do_user_addr_fault arch/x86/mm/fault.c:1332 [inline] handle_page_fault arch/x86/mm/fault.c:1475 [inline] exc_page_fault+0x419/0x6f0 arch/x86/mm/fault.c:1533 asm_exc_page_fault+0x2b/0x30 arch/x86/include/asm/idtentry.h:623 Local variable newes created at: ext4_es_insert_extent+0x55/0x5c00 fs/ext4/extents_status.c:851 ext4_ext_determine_insert_hole fs/ext4/extents.c:4099 [inline] ext4_ext_map_blocks+0x2052/0xa000 fs/ext4/extents.c:4226 CPU: 1 PID: 8845 Comm: syz-executor.0 Not tainted 6.9.0-syzkaller-02707-g614da38e2f7a #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 =====================================================