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BUG: KCSAN: data-race in mem_cgroup_flush_stats_ratelimited / tick_do_update_jiffies64

read-write to 0xffffffff86c07a00 of 8 bytes by interrupt on cpu 0:
 tick_do_update_jiffies64+0x113/0x1c0 kernel/time/tick-sched.c:118
 tick_sched_do_timer kernel/time/tick-sched.c:253 [inline]
 tick_nohz_handler+0x88/0x380 kernel/time/tick-sched.c:310
 __run_hrtimer kernel/time/hrtimer.c:2032 [inline]
 __hrtimer_run_queues+0x1f8/0x510 kernel/time/hrtimer.c:2096
 hrtimer_interrupt+0x257/0x810 kernel/time/hrtimer.c:2215
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1051 [inline]
 __sysvec_apic_timer_interrupt+0x5f/0x1c0 arch/x86/kernel/apic/apic.c:1068
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1062 [inline]
 sysvec_apic_timer_interrupt+0x6f/0x80 arch/x86/kernel/apic/apic.c:1062
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674
 list_lru_count_one+0xbd/0x100 mm/list_lru.c:317
 list_lru_shrink_count include/linux/list_lru.h:260 [inline]
 super_cache_count+0x107/0x150 fs/super.c:266
 do_shrink_slab+0x61/0x650 mm/shrinker.c:389
 shrink_slab+0x1eb/0x8e0 mm/shrinker.c:674
 shrink_one+0x18d/0x400 mm/vmscan.c:5026
 shrink_many mm/vmscan.c:5087 [inline]
 lru_gen_shrink_node mm/vmscan.c:5165 [inline]
 shrink_node+0x193a/0x1e30 mm/vmscan.c:6154
 shrink_zones mm/vmscan.c:6410 [inline]
 do_try_to_free_pages+0x408/0xc90 mm/vmscan.c:6472
 try_to_free_pages+0x362/0x820 mm/vmscan.c:6711
 __perform_reclaim mm/page_alloc.c:4405 [inline]
 __alloc_pages_direct_reclaim+0x4e/0xd0 mm/page_alloc.c:4427
 __alloc_pages_slowpath+0x2d6/0x620 mm/page_alloc.c:4876
 __alloc_frozen_pages_noprof+0x270/0x350 mm/page_alloc.c:5317
 alloc_pages_mpol+0xa9/0x1d0 mm/mempolicy.c:2490
 alloc_frozen_pages_noprof mm/mempolicy.c:2561 [inline]
 alloc_pages_noprof mm/mempolicy.c:2581 [inline]
 folio_alloc_noprof+0x96/0x150 mm/mempolicy.c:2591
 filemap_alloc_folio_noprof+0x92/0x220 mm/filemap.c:1019
 __filemap_get_folio_mpol+0x2a0/0x840 mm/filemap.c:2018
 __filemap_get_folio include/linux/pagemap.h:761 [inline]
 filemap_fault+0x458/0xb60 mm/filemap.c:3598
 __do_fault mm/memory.c:5425 [inline]
 do_read_fault mm/memory.c:5860 [inline]
 do_fault mm/memory.c:5994 [inline]
 do_pte_missing mm/memory.c:4566 [inline]
 handle_pte_fault mm/memory.c:6379 [inline]
 __handle_mm_fault mm/memory.c:6517 [inline]
 handle_mm_fault+0x167a/0x2da0 mm/memory.c:6686
 do_user_addr_fault+0x634/0x1060 arch/x86/mm/fault.c:1343
 handle_page_fault arch/x86/mm/fault.c:1483 [inline]
 exc_page_fault+0x62/0xa0 arch/x86/mm/fault.c:1536
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:595

read to 0xffffffff86c07a00 of 8 bytes by task 27218 on cpu 1:
 mem_cgroup_flush_stats_ratelimited+0x29/0x50 mm/memcontrol.c:743
 count_shadow_nodes+0x6a/0x250 mm/workingset.c:694
 do_shrink_slab+0x61/0x650 mm/shrinker.c:389
 shrink_slab_memcg mm/shrinker.c:560 [inline]
 shrink_slab+0x53b/0x8e0 mm/shrinker.c:638
 shrink_one+0x18d/0x400 mm/vmscan.c:5026
 shrink_many mm/vmscan.c:5087 [inline]
 lru_gen_shrink_node mm/vmscan.c:5165 [inline]
 shrink_node+0x193a/0x1e30 mm/vmscan.c:6154
 shrink_zones mm/vmscan.c:6410 [inline]
 do_try_to_free_pages+0x408/0xc90 mm/vmscan.c:6472
 try_to_free_pages+0x362/0x820 mm/vmscan.c:6711
 __perform_reclaim mm/page_alloc.c:4405 [inline]
 __alloc_pages_direct_reclaim+0x4e/0xd0 mm/page_alloc.c:4427
 __alloc_pages_slowpath+0x2d6/0x620 mm/page_alloc.c:4876
 __alloc_frozen_pages_noprof+0x270/0x350 mm/page_alloc.c:5317
 alloc_pages_mpol+0xa9/0x1d0 mm/mempolicy.c:2490
 alloc_frozen_pages_noprof mm/mempolicy.c:2561 [inline]
 alloc_pages_noprof+0x8f/0x140 mm/mempolicy.c:2581
 pagetable_alloc_noprof include/linux/mm.h:3685 [inline]
 __pte_alloc_one_noprof include/asm-generic/pgalloc.h:76 [inline]
 pte_alloc_one+0x1c/0xc0 arch/x86/mm/pgtable.c:18
 __do_fault mm/memory.c:5420 [inline]
 do_cow_fault mm/memory.c:5890 [inline]
 do_fault mm/memory.c:5996 [inline]
 do_pte_missing mm/memory.c:4566 [inline]
 handle_pte_fault mm/memory.c:6379 [inline]
 __handle_mm_fault mm/memory.c:6517 [inline]
 handle_mm_fault+0x1ed0/0x2da0 mm/memory.c:6686
 do_user_addr_fault+0x791/0x1060 arch/x86/mm/fault.c:1394
 handle_page_fault arch/x86/mm/fault.c:1483 [inline]
 exc_page_fault+0x62/0xa0 arch/x86/mm/fault.c:1536
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:595
 rep_stos_alternative+0x40/0x80 arch/x86/lib/clear_page_64.S:72
 __clear_user arch/x86/include/asm/uaccess_64.h:190 [inline]
 clear_user arch/x86/include/asm/uaccess_64.h:207 [inline]
 padzero fs/binfmt_elf.c:134 [inline]
 elf_load+0x3b9/0x510 fs/binfmt_elf.c:436
 load_elf_binary+0xbfb/0x1a30 fs/binfmt_elf.c:1188
 search_binary_handler fs/exec.c:1694 [inline]
 exec_binprm fs/exec.c:1726 [inline]
 bprm_execve+0x45c/0x9b0 fs/exec.c:1778
 kernel_execve+0x5e0/0x630 fs/exec.c:1922
 call_usermodehelper_exec_async+0x196/0x250 kernel/umh.c:109
 ret_from_fork+0x146/0x330 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245

value changed: 0x000000010001a525 -> 0x000000010001a526

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 UID: 0 PID: 27218 Comm: modprobe Tainted: G        W           syzkaller #0 PREEMPT(lazy) 
Tainted: [W]=WARN
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
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