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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
 check_kcov_mode kernel/kcov.c:185 [inline]
 write_comp_data kernel/kcov.c:246 [inline]
 __sanitizer_cov_trace_const_cmp8+0x37/0x90 kernel/kcov.c:321
 xa_is_internal include/linux/xarray.h:175 [inline]
 xa_is_sibling include/linux/xarray.h:1293 [inline]
 xas_reload include/linux/xarray.h:1625 [inline]
 find_get_entry+0x1ae/0x380 mm/filemap.c:2085
 find_lock_entries+0x411/0x480 mm/filemap.c:2172
 shmem_undo_range+0x18f/0xa80 mm/shmem.c:1102
 shmem_truncate_range mm/shmem.c:1232 [inline]
 shmem_fallocate+0x2bb/0x840 mm/shmem.c:3687
 vfs_fallocate+0x3b6/0x400 fs/open.c:342
 madvise_remove mm/madvise.c:1049 [inline]
 madvise_vma_behavior+0x1920/0x1cf0 mm/madvise.c:1346
 madvise_walk_vmas mm/madvise.c:1669 [inline]
 madvise_do_behavior+0x5b7/0x970 mm/madvise.c:1885
 do_madvise+0x10e/0x190 mm/madvise.c:1978
 __do_sys_madvise mm/madvise.c:1987 [inline]
 __se_sys_madvise mm/madvise.c:1985 [inline]
 __x64_sys_madvise+0x64/0x80 mm/madvise.c:1985
 x64_sys_call+0x1f1a/0x3000 arch/x86/include/generated/asm/syscalls_64.h:29
 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 692 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_swapin_charge_folio+0xcc/0x150 mm/memcontrol.c:4787
 __read_swap_cache_async+0x17b/0x2d0 mm/swap_state.c:481
 swap_cluster_readahead+0x262/0x3c0 mm/swap_state.c:650
 swapin_readahead+0xde/0x6f0 mm/swap_state.c:813
 do_swap_page+0x2ae/0x2370 mm/memory.c:4714
 handle_pte_fault mm/memory.c:6198 [inline]
 __handle_mm_fault mm/memory.c:6336 [inline]
 handle_mm_fault+0x9a5/0x2be0 mm/memory.c:6505
 do_user_addr_fault+0x630/0x1080 arch/x86/mm/fault.c:1336
 handle_page_fault arch/x86/mm/fault.c:1476 [inline]
 exc_page_fault+0x62/0xa0 arch/x86/mm/fault.c:1532
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:618

value changed: 0x000000010000cef9 -> 0x000000010000cefa

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 UID: 0 PID: 692 Comm: syz-executor 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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