================================================================== BUG: KCSAN: data-race in mem_cgroup_flush_stats_ratelimited / tick_do_update_jiffies64 read-write to 0xffffffff860079c0 of 8 bytes by interrupt on cpu 0: tick_do_update_jiffies64+0x112/0x1b0 kernel/time/tick-sched.c:118 tick_sched_do_timer kernel/time/tick-sched.c:232 [inline] tick_nohz_handler+0x7c/0x2d0 kernel/time/tick-sched.c:290 __run_hrtimer kernel/time/hrtimer.c:1687 [inline] __hrtimer_run_queues+0x20d/0x5e0 kernel/time/hrtimer.c:1751 hrtimer_interrupt+0x210/0x7b0 kernel/time/hrtimer.c:1813 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1032 [inline] __sysvec_apic_timer_interrupt+0x5c/0x1a0 arch/x86/kernel/apic/apic.c:1049 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline] sysvec_apic_timer_interrupt+0x6e/0x80 arch/x86/kernel/apic/apic.c:1043 asm_sysvec_apic_timer_interrupt+0x1a/0x20 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+0x3d/0x60 kernel/locking/spinlock.c:194 spin_unlock_irqrestore include/linux/spinlock.h:406 [inline] unlock_page_lruvec_irqrestore include/linux/memcontrol.h:1636 [inline] folios_put_refs+0x216/0x2b0 mm/swap.c:1016 free_pages_and_swap_cache+0x289/0x400 mm/swap_state.c:329 __tlb_batch_free_encoded_pages mm/mmu_gather.c:136 [inline] tlb_batch_pages_flush mm/mmu_gather.c:149 [inline] tlb_flush_mmu_free mm/mmu_gather.c:366 [inline] tlb_flush_mmu+0x2cf/0x440 mm/mmu_gather.c:373 tlb_finish_mmu+0x8c/0x100 mm/mmu_gather.c:465 exit_mmap+0x2b7/0x710 mm/mmap.c:3354 __mmput+0x28/0x1c0 kernel/fork.c:1346 mmput+0x4c/0x60 kernel/fork.c:1368 exit_mm+0xe4/0x190 kernel/exit.c:565 do_exit+0x556/0x1710 kernel/exit.c:861 do_group_exit+0x142/0x150 kernel/exit.c:1023 __do_sys_exit_group kernel/exit.c:1034 [inline] __se_sys_exit_group kernel/exit.c:1032 [inline] __x64_sys_exit_group+0x1f/0x20 kernel/exit.c:1032 x64_sys_call+0x27f9/0x2d70 arch/x86/include/generated/asm/syscalls_64.h:232 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xc9/0x1c0 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f read to 0xffffffff860079c0 of 8 bytes by task 3085 on cpu 1: mem_cgroup_flush_stats_ratelimited+0x29/0x100 mm/memcontrol.c:906 workingset_test_recent+0x114/0x410 mm/workingset.c:473 workingset_refault+0x1e9/0x460 mm/workingset.c:561 filemap_add_folio+0x116/0x1b0 mm/filemap.c:985 page_cache_ra_unbounded+0x148/0x2e0 mm/readahead.c:252 do_page_cache_ra mm/readahead.c:303 [inline] page_cache_ra_order+0xf7/0x110 mm/readahead.c:547 do_sync_mmap_readahead+0x267/0x2a0 mm/filemap.c:3175 filemap_fault+0x331/0xa60 mm/filemap.c:3313 __do_fault+0xb6/0x200 mm/memory.c:4556 do_read_fault mm/memory.c:4921 [inline] do_fault mm/memory.c:5051 [inline] do_pte_missing mm/memory.c:3897 [inline] handle_pte_fault mm/memory.c:5381 [inline] __handle_mm_fault mm/memory.c:5524 [inline] handle_mm_fault+0xdeb/0x2a80 mm/memory.c:5689 do_user_addr_fault arch/x86/mm/fault.c:1338 [inline] handle_page_fault arch/x86/mm/fault.c:1481 [inline] exc_page_fault+0x3b9/0x650 arch/x86/mm/fault.c:1539 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623 value changed: 0x00000000ffffa0ab -> 0x00000000ffffa0ac Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 3085 Comm: syz-executor Not tainted 6.10.0-rc5-syzkaller-00155-g66e55ff12e73 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 ==================================================================