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BUG: KCSAN: data-race in mem_cgroup_flush_stats_ratelimited / tick_do_update_jiffies64

read-write to 0xffffffff868099c0 of 8 bytes by interrupt on cpu 1:
 tick_do_update_jiffies64+0x113/0x1c0 kernel/time/tick-sched.c:118
 tick_sched_do_timer kernel/time/tick-sched.c:232 [inline]
 tick_nohz_handler+0x7f/0x2d0 kernel/time/tick-sched.c:290
 __run_hrtimer kernel/time/hrtimer.c:1777 [inline]
 __hrtimer_run_queues+0x20f/0x5a0 kernel/time/hrtimer.c:1841
 hrtimer_interrupt+0x21a/0x460 kernel/time/hrtimer.c:1903
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1041 [inline]
 __sysvec_apic_timer_interrupt+0x5f/0x1d0 arch/x86/kernel/apic/apic.c:1058
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1052 [inline]
 sysvec_apic_timer_interrupt+0x6f/0x80 arch/x86/kernel/apic/apic.c:1052
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
 ptep_get include/linux/pgtable.h:340 [inline]
 copy_pte_range mm/memory.c:1273 [inline]
 copy_pmd_range mm/memory.c:1390 [inline]
 copy_pud_range mm/memory.c:1427 [inline]
 copy_p4d_range mm/memory.c:1451 [inline]
 copy_page_range+0xb69/0x3be0 mm/memory.c:1539
 dup_mmap+0x885/0xf20 mm/mmap.c:1834
 dup_mm kernel/fork.c:1489 [inline]
 copy_mm+0x11a/0x370 kernel/fork.c:1541
 copy_process+0xd08/0x2000 kernel/fork.c:2181
 kernel_clone+0x16c/0x5c0 kernel/fork.c:2609
 __do_sys_clone kernel/fork.c:2750 [inline]
 __se_sys_clone kernel/fork.c:2734 [inline]
 __x64_sys_clone+0xe6/0x120 kernel/fork.c:2734
 x64_sys_call+0x119c/0x3000 arch/x86/include/generated/asm/syscalls_64.h:57
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xd2/0x200 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

read to 0xffffffff868099c0 of 8 bytes by task 6581 on cpu 0:
 mem_cgroup_flush_stats_ratelimited+0x29/0x70 mm/memcontrol.c:635
 count_shadow_nodes+0x6a/0x230 mm/workingset.c:678
 do_shrink_slab+0x63/0x680 mm/shrinker.c:384
 shrink_slab_memcg mm/shrinker.c:550 [inline]
 shrink_slab+0x448/0x760 mm/shrinker.c:628
 shrink_node_memcgs mm/vmscan.c:6056 [inline]
 shrink_node+0x6c3/0x2120 mm/vmscan.c:6095
 shrink_zones mm/vmscan.c:6339 [inline]
 do_try_to_free_pages+0x3f6/0xcd0 mm/vmscan.c:6401
 try_to_free_mem_cgroup_pages+0x1ab/0x410 mm/vmscan.c:6729
 try_charge_memcg+0x383/0xa10 mm/memcontrol.c:2356
 try_charge mm/memcontrol.c:2498 [inline]
 charge_memcg+0x51/0xc0 mm/memcontrol.c:4701
 __mem_cgroup_charge+0x28/0xb0 mm/memcontrol.c:4718
 mem_cgroup_charge include/linux/memcontrol.h:662 [inline]
 shmem_alloc_and_add_folio mm/shmem.c:1922 [inline]
 shmem_get_folio_gfp+0x470/0xd60 mm/shmem.c:2535
 shmem_get_folio mm/shmem.c:2641 [inline]
 shmem_write_begin+0xa8/0x190 mm/shmem.c:3291
 generic_perform_write+0x184/0x490 mm/filemap.c:4254
 shmem_file_write_iter+0xc5/0xf0 mm/shmem.c:3466
 __kernel_write_iter+0x2d6/0x540 fs/read_write.c:619
 dump_emit_page fs/coredump.c:1298 [inline]
 dump_user_range+0x61e/0x8f0 fs/coredump.c:1372
 elf_core_dump+0x1de7/0x1f80 fs/binfmt_elf.c:2111
 coredump_write+0xb12/0xe30 fs/coredump.c:1049
 vfs_coredump+0x143a/0x20d0 fs/coredump.c:1170
 get_signal+0xd84/0xf70 kernel/signal.c:3019
 arch_do_signal_or_restart+0x96/0x440 arch/x86/kernel/signal.c:337
 exit_to_user_mode_loop kernel/entry/common.c:40 [inline]
 exit_to_user_mode_prepare include/linux/irq-entry-common.h:225 [inline]
 irqentry_exit_to_user_mode+0x5b/0xa0 kernel/entry/common.c:73
 irqentry_exit+0x12/0x50 kernel/entry/common.c:191
 exc_general_protection+0x15b/0x1f0 arch/x86/kernel/traps.c:792
 asm_exc_general_protection+0x26/0x30 arch/x86/include/asm/idtentry.h:612

value changed: 0x00000000ffffc1d9 -> 0x00000000ffffc1da

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 UID: 0 PID: 6581 Comm: syz.0.758 Tainted: G        W           syzkaller #0 PREEMPT(voluntary) 
Tainted: [W]=WARN
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
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