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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 1:
 tick_do_update_jiffies64+0x113/0x1c0 kernel/time/tick-sched.c:118
 tick_limited_update_jiffies64 kernel/time/tick-sched.c:220 [inline]
 tick_sched_do_timer kernel/time/tick-sched.c:264 [inline]
 tick_nohz_handler+0x376/0x3d0 kernel/time/tick-sched.c:312
 __run_hrtimer kernel/time/hrtimer.c:1930 [inline]
 __hrtimer_run_queues+0x276/0x4f0 kernel/time/hrtimer.c:1994
 hrtimer_interrupt+0x261/0x850 kernel/time/hrtimer.c:2113
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1050 [inline]
 __sysvec_apic_timer_interrupt+0x5f/0x1c0 arch/x86/kernel/apic/apic.c:1067
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1061 [inline]
 sysvec_apic_timer_interrupt+0x6f/0x80 arch/x86/kernel/apic/apic.c:1061
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
 __preempt_count_dec_and_test arch/x86/include/asm/preempt.h:95 [inline]
 __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:179 [inline]
 _raw_spin_unlock_irqrestore+0x1a/0x30 kernel/locking/spinlock.c:198
 spin_unlock_irqrestore include/linux/spinlock.h:408 [inline]
 free_percpu+0x538/0x9c0 mm/percpu.c:2283
 xt_percpu_counter_free+0x67/0x80 net/netfilter/x_tables.c:1981
 cleanup_entry+0x1e6/0x210 net/ipv4/netfilter/ip_tables.c:654
 __do_replace+0x458/0x570 net/ipv4/netfilter/ip_tables.c:1082
 do_replace net/ipv4/netfilter/ip_tables.c:1141 [inline]
 do_ipt_set_ctl+0x774/0x8e0 net/ipv4/netfilter/ip_tables.c:1635
 nf_setsockopt+0x199/0x1b0 net/netfilter/nf_sockopt.c:101
 ip_setsockopt+0x102/0x110 net/ipv4/ip_sockglue.c:1424
 tcp_setsockopt+0x98/0xb0 net/ipv4/tcp.c:4184
 sock_common_setsockopt+0x69/0x80 net/core/sock.c:3989
 do_sock_setsockopt net/socket.c:2381 [inline]
 __sys_setsockopt+0x184/0x200 net/socket.c:2406
 __do_sys_setsockopt net/socket.c:2412 [inline]
 __se_sys_setsockopt net/socket.c:2409 [inline]
 __x64_sys_setsockopt+0x64/0x80 net/socket.c:2409
 x64_sys_call+0x2327/0x3020 arch/x86/include/generated/asm/syscalls_64.h:55
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x12c/0x3b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

read to 0xffffffff86c07a00 of 8 bytes by task 24683 on cpu 0:
 mem_cgroup_flush_stats_ratelimited+0x29/0x50 mm/memcontrol.c:643
 count_shadow_nodes+0x6a/0x230 mm/workingset.c:685
 do_shrink_slab+0x63/0x660 mm/shrinker.c:386
 shrink_slab_memcg mm/shrinker.c:557 [inline]
 shrink_slab+0x545/0x8f0 mm/shrinker.c:635
 shrink_node_memcgs mm/vmscan.c:6034 [inline]
 shrink_node+0x6d8/0x2100 mm/vmscan.c:6076
 shrink_zones mm/vmscan.c:6315 [inline]
 do_try_to_free_pages+0x408/0xc90 mm/vmscan.c:6377
 try_to_free_mem_cgroup_pages+0x201/0x420 mm/vmscan.c:6699
 try_charge_memcg+0x373/0xa10 mm/memcontrol.c:2439
 obj_cgroup_charge_pages mm/memcontrol.c:2882 [inline]
 __memcg_kmem_charge_page+0x139/0x2b0 mm/memcontrol.c:2926
 __alloc_frozen_pages_noprof+0x18a/0x350 mm/page_alloc.c:5245
 alloc_pages_mpol+0xb3/0x260 mm/mempolicy.c:2490
 alloc_frozen_pages_noprof mm/mempolicy.c:2561 [inline]
 alloc_pages_noprof+0x8f/0x140 mm/mempolicy.c:2581
 vm_area_alloc_pages mm/vmalloc.c:3728 [inline]
 __vmalloc_area_node mm/vmalloc.c:3878 [inline]
 __vmalloc_node_range_noprof+0xaed/0x11c0 mm/vmalloc.c:4064
 __kvmalloc_node_noprof+0x3d4/0x640 mm/slub.c:6856
 futex_hash_allocate+0x190/0x9a0 kernel/futex/core.c:1815
 futex_hash_prctl+0xd8/0xf0 kernel/futex/core.c:1961
 __do_sys_prctl kernel/sys.c:2885 [inline]
 __se_sys_prctl+0x4f4/0x1400 kernel/sys.c:2534
 __x64_sys_prctl+0x67/0x80 kernel/sys.c:2534
 x64_sys_call+0x2533/0x3020 arch/x86/include/generated/asm/syscalls_64.h:158
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x12c/0x3b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

value changed: 0x000000010000e946 -> 0x000000010000e94c

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 UID: 0 PID: 24683 Comm: syz.3.5051 Tainted: G        W           syzkaller #0 PREEMPT(full) 
Tainted: [W]=WARN
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
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