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BUG: KCSAN: data-race in mem_cgroup_flush_stats / tick_do_update_jiffies64

read-write to 0xffffffff85a079c0 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:1474
 __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:1095 [inline]
 __sysvec_apic_timer_interrupt+0xa3/0x250 arch/x86/kernel/apic/apic.c:1112
 sysvec_apic_timer_interrupt+0x88/0xb0 arch/x86/kernel/apic/apic.c:1106
 asm_sysvec_apic_timer_interrupt+0x1b/0x20
 kcsan_setup_watchpoint+0x3e9/0x3f0 kernel/kcsan/core.c:694
 skb_set_owner_w+0x66/0x200 net/core/sock.c:2398
 sock_alloc_send_pskb+0x453/0x4f0 net/core/sock.c:2665
 unix_dgram_sendmsg+0x3fe/0x1160 net/unix/af_unix.c:1895
 sock_sendmsg_nosec net/socket.c:714 [inline]
 sock_sendmsg net/socket.c:734 [inline]
 ____sys_sendmsg+0x38f/0x500 net/socket.c:2492
 ___sys_sendmsg net/socket.c:2546 [inline]
 __sys_sendmmsg+0x27c/0x4a0 net/socket.c:2632
 __do_sys_sendmmsg net/socket.c:2661 [inline]
 __se_sys_sendmmsg net/socket.c:2658 [inline]
 __x64_sys_sendmmsg+0x53/0x60 net/socket.c:2658
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x46/0xb0

read to 0xffffffff85a079c0 of 8 bytes by task 1837 on cpu 1:
 __mem_cgroup_flush_stats mm/memcontrol.c:641 [inline]
 mem_cgroup_flush_stats+0x7f/0x110 mm/memcontrol.c:650
 shrink_node+0x2fc/0x10f0 mm/vmscan.c:3150
 shrink_zones+0x2c1/0x5d0 mm/vmscan.c:3482
 do_try_to_free_pages+0x165/0x720 mm/vmscan.c:3540
 try_to_free_mem_cgroup_pages+0x1cd/0x420 mm/vmscan.c:3854
 reclaim_high+0xcd/0x110 mm/memcontrol.c:2333
 mem_cgroup_handle_over_high+0x75/0x120 mm/memcontrol.c:2517
 resume_user_mode_work include/linux/resume_user_mode.h:58 [inline]
 exit_to_user_mode_loop+0xa5/0x130 kernel/entry/common.c:169
 exit_to_user_mode_prepare kernel/entry/common.c:201 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:283 [inline]
 syscall_exit_to_user_mode+0x6a/0x90 kernel/entry/common.c:294
 do_syscall_64+0x37/0x70 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x46/0xb0

value changed: 0x00000001000498bb -> 0x00000001000498bc

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 1837 Comm: syz-executor.5 Not tainted 5.18.0-syzkaller-11179-gc3a9a3c5f559-dirty #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
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