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BUG: KCSAN: data-race in mem_cgroup_flush_stats / tick_do_update_jiffies64

read-write to 0xffffffff85c079c0 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:199 [inline]
 tick_sched_timer+0x7e/0x2d0 kernel/time/tick-sched.c:1473
 __run_hrtimer+0x132/0x420 kernel/time/hrtimer.c:1685
 __hrtimer_run_queues kernel/time/hrtimer.c:1749 [inline]
 hrtimer_interrupt+0x36e/0xa70 kernel/time/hrtimer.c:1811
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1096 [inline]
 __sysvec_apic_timer_interrupt+0xa3/0x250 arch/x86/kernel/apic/apic.c:1113
 sysvec_apic_timer_interrupt+0x88/0xb0 arch/x86/kernel/apic/apic.c:1107
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:649
 kcsan_setup_watchpoint+0x3e9/0x3f0 kernel/kcsan/core.c:694
 list_del include/linux/list.h:149 [inline]
 shrink_active_list+0x23d/0x830 mm/vmscan.c:2587
 shrink_list mm/vmscan.c:2710 [inline]
 shrink_lruvec+0x382/0x700 mm/vmscan.c:5885
 shrink_node_memcgs+0x253/0x470 mm/vmscan.c:6074
 shrink_node+0x1d7/0x930 mm/vmscan.c:6105
 shrink_zones+0x2c1/0x5d0 mm/vmscan.c:6343
 do_try_to_free_pages+0x195/0x760 mm/vmscan.c:6405
 try_to_free_mem_cgroup_pages+0x1d1/0x420 mm/vmscan.c:6720
 reclaim_high+0xcd/0x110 mm/memcontrol.c:2389
 mem_cgroup_handle_over_high+0x75/0x120 mm/memcontrol.c:2574
 try_charge_memcg+0x886/0x9c0 mm/memcontrol.c:2812
 try_charge mm/memcontrol.c:2823 [inline]
 charge_memcg+0x54/0x250 mm/memcontrol.c:6879
 __mem_cgroup_charge+0x25/0xa0 mm/memcontrol.c:6900
 mem_cgroup_charge include/linux/memcontrol.h:667 [inline]
 __filemap_add_folio+0x4a7/0x6e0 mm/filemap.c:852
 filemap_add_folio+0x6b/0x150 mm/filemap.c:934
 __filemap_get_folio+0x510/0x6d0 mm/filemap.c:1976
 pagecache_get_page+0x26/0xe0 mm/folio-compat.c:110
 grab_cache_page_write_begin+0x2a/0x30 mm/folio-compat.c:122
 ext4_da_write_begin+0x2dd/0x5f0 fs/ext4/inode.c:2995
 generic_perform_write+0x1d4/0x3f0 mm/filemap.c:3753
 ext4_buffered_write_iter+0x235/0x3e0 fs/ext4/file.c:285
 ext4_file_write_iter+0x2c7/0x1170
 __kernel_write_iter+0x157/0x380 fs/read_write.c:517
 dump_emit_page+0x3de/0x830 fs/coredump.c:857
 dump_user_range+0x5e/0x200 fs/coredump.c:908
 elf_core_dump+0x1b1e/0x1c10 fs/binfmt_elf.c:2312
 do_coredump+0xe93/0x1720 fs/coredump.c:755
 get_signal+0x9f9/0xc60 kernel/signal.c:2844
 arch_do_signal_or_restart+0x87/0x2d0 arch/x86/kernel/signal.c:869
 exit_to_user_mode_loop+0x78/0x130 kernel/entry/common.c:168
 exit_to_user_mode_prepare+0x69/0x90 kernel/entry/common.c:203
 irqentry_exit_to_user_mode+0x5/0x10 kernel/entry/common.c:309
 irqentry_exit+0xe/0x40 kernel/entry/common.c:412
 asm_exc_page_fault+0x22/0x30 arch/x86/include/asm/idtentry.h:570

read to 0xffffffff85c079c0 of 8 bytes by task 20435 on cpu 1:
 __mem_cgroup_flush_stats mm/memcontrol.c:634 [inline]
 mem_cgroup_flush_stats+0x7f/0x110 mm/memcontrol.c:643
 prepare_scan_count+0xad/0x7f0 mm/vmscan.c:2787
 shrink_node+0x1cc/0x930 mm/vmscan.c:6103
 shrink_zones+0x2c1/0x5d0 mm/vmscan.c:6343
 do_try_to_free_pages+0x195/0x760 mm/vmscan.c:6405
 try_to_free_mem_cgroup_pages+0x1d1/0x420 mm/vmscan.c:6720
 reclaim_high+0xcd/0x110 mm/memcontrol.c:2389
 mem_cgroup_handle_over_high+0x75/0x120 mm/memcontrol.c:2574
 try_charge_memcg+0x886/0x9c0 mm/memcontrol.c:2812
 try_charge mm/memcontrol.c:2823 [inline]
 charge_memcg+0x54/0x250 mm/memcontrol.c:6879
 __mem_cgroup_charge+0x25/0xa0 mm/memcontrol.c:6900
 mem_cgroup_charge include/linux/memcontrol.h:667 [inline]
 __filemap_add_folio+0x4a7/0x6e0 mm/filemap.c:852
 filemap_add_folio+0x6b/0x150 mm/filemap.c:934
 __filemap_get_folio+0x510/0x6d0 mm/filemap.c:1976
 pagecache_get_page+0x26/0xe0 mm/folio-compat.c:110
 grab_cache_page_write_begin+0x2a/0x30 mm/folio-compat.c:122
 ext4_da_write_begin+0x2dd/0x5f0 fs/ext4/inode.c:2995
 generic_perform_write+0x1d4/0x3f0 mm/filemap.c:3753
 ext4_buffered_write_iter+0x235/0x3e0 fs/ext4/file.c:285
 ext4_file_write_iter+0x2c7/0x1170
 __kernel_write_iter+0x157/0x380 fs/read_write.c:517
 dump_emit_page+0x3de/0x830 fs/coredump.c:857
 dump_user_range+0x5e/0x200 fs/coredump.c:908
 elf_core_dump+0x1b1e/0x1c10 fs/binfmt_elf.c:2312
 do_coredump+0xe93/0x1720 fs/coredump.c:755
 get_signal+0x9f9/0xc60 kernel/signal.c:2844
 arch_do_signal_or_restart+0x87/0x2d0 arch/x86/kernel/signal.c:869
 exit_to_user_mode_loop+0x78/0x130 kernel/entry/common.c:168
 exit_to_user_mode_prepare+0x69/0x90 kernel/entry/common.c:203
 irqentry_exit_to_user_mode+0x5/0x10 kernel/entry/common.c:309
 irqentry_exit+0xe/0x40 kernel/entry/common.c:412
 asm_exc_page_fault+0x22/0x30 arch/x86/include/asm/idtentry.h:570

value changed: 0x0000000100027c31 -> 0x0000000100027c32

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 20435 Comm: syz-executor.1 Not tainted 6.1.0-rc5-syzkaller-00018-g59d0d52c30d4-dirty #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
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