================================================================== BUG: KCSAN: data-race in mem_cgroup_flush_stats_ratelimited / tick_do_update_jiffies64 read-write to 0xffffffff866079c0 of 8 bytes by interrupt on cpu 1: tick_do_update_jiffies64+0x112/0x1b0 kernel/time/tick-sched.c:118 tick_sched_do_timer kernel/time/tick-sched.c:232 [inline] tick_nohz_handler+0x7c/0x2d0 kernel/time/tick-sched.c:290 __run_hrtimer kernel/time/hrtimer.c:1689 [inline] __hrtimer_run_queues+0x20d/0x5e0 kernel/time/hrtimer.c:1753 hrtimer_interrupt+0x210/0x7b0 kernel/time/hrtimer.c:1815 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1032 [inline] __sysvec_apic_timer_interrupt+0x5c/0x1a0 arch/x86/kernel/apic/apic.c:1049 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline] sysvec_apic_timer_interrupt+0x6e/0x80 arch/x86/kernel/apic/apic.c:1043 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 native_safe_halt arch/x86/include/asm/irqflags.h:48 [inline] arch_safe_halt arch/x86/include/asm/irqflags.h:106 [inline] acpi_safe_halt+0x21/0x30 drivers/acpi/processor_idle.c:111 acpi_idle_do_entry+0x1d/0x30 drivers/acpi/processor_idle.c:568 acpi_idle_enter+0x96/0xb0 drivers/acpi/processor_idle.c:702 cpuidle_enter_state+0xcf/0x270 drivers/cpuidle/cpuidle.c:267 cpuidle_enter+0x40/0x70 drivers/cpuidle/cpuidle.c:388 call_cpuidle kernel/sched/idle.c:155 [inline] cpuidle_idle_call kernel/sched/idle.c:230 [inline] do_idle+0x195/0x230 kernel/sched/idle.c:326 cpu_startup_entry+0x25/0x30 kernel/sched/idle.c:424 start_secondary+0x94/0xa0 arch/x86/kernel/smpboot.c:313 common_startup_64+0x12c/0x137 read to 0xffffffff866079c0 of 8 bytes by task 3640 on cpu 0: mem_cgroup_flush_stats_ratelimited+0x29/0x100 mm/memcontrol.c:605 count_shadow_nodes+0x6b/0x230 mm/workingset.c:693 do_shrink_slab+0x5a/0x680 mm/shrinker.c:382 shrink_slab_memcg mm/shrinker.c:548 [inline] shrink_slab+0x4ea/0x850 mm/shrinker.c:626 shrink_node_memcgs mm/vmscan.c:5890 [inline] shrink_node+0x64f/0x1d40 mm/vmscan.c:5928 shrink_zones mm/vmscan.c:6172 [inline] do_try_to_free_pages+0x3c6/0xc50 mm/vmscan.c:6234 try_to_free_mem_cgroup_pages+0x1f3/0x4f0 mm/vmscan.c:6566 try_charge_memcg+0x2bc/0x810 mm/memcontrol.c:2210 obj_cgroup_charge_pages+0xbd/0x1a0 mm/memcontrol.c:2660 __memcg_kmem_charge_page+0x9d/0x170 mm/memcontrol.c:2687 __alloc_pages_noprof+0x1bc/0x360 mm/page_alloc.c:4719 alloc_pages_mpol_noprof+0xb1/0x1e0 mm/mempolicy.c:2263 alloc_pages_noprof+0xe1/0x100 mm/mempolicy.c:2343 vm_area_alloc_pages mm/vmalloc.c:3587 [inline] __vmalloc_area_node mm/vmalloc.c:3656 [inline] __vmalloc_node_range_noprof+0x736/0xec0 mm/vmalloc.c:3837 __kvmalloc_node_noprof+0x121/0x170 mm/util.c:675 ip_set_alloc+0x1f/0x30 net/netfilter/ipset/ip_set_core.c:256 hash_netiface_create+0x273/0x730 net/netfilter/ipset/ip_set_hash_gen.h:1568 ip_set_create+0x359/0x8a0 net/netfilter/ipset/ip_set_core.c:1104 nfnetlink_rcv_msg+0x4a9/0x570 net/netfilter/nfnetlink.c:302 netlink_rcv_skb+0x12c/0x230 net/netlink/af_netlink.c:2550 nfnetlink_rcv+0x16c/0x15e0 net/netfilter/nfnetlink.c:667 netlink_unicast_kernel net/netlink/af_netlink.c:1331 [inline] netlink_unicast+0x599/0x670 net/netlink/af_netlink.c:1357 netlink_sendmsg+0x5cc/0x6e0 net/netlink/af_netlink.c:1901 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg+0x140/0x180 net/socket.c:745 ____sys_sendmsg+0x312/0x410 net/socket.c:2597 ___sys_sendmsg net/socket.c:2651 [inline] __sys_sendmsg+0x1e9/0x280 net/socket.c:2680 __do_sys_sendmsg net/socket.c:2689 [inline] __se_sys_sendmsg net/socket.c:2687 [inline] __x64_sys_sendmsg+0x46/0x50 net/socket.c:2687 x64_sys_call+0x2689/0x2d60 arch/x86/include/generated/asm/syscalls_64.h:47 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xc9/0x1c0 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f value changed: 0x00000000ffff98a9 -> 0x00000000ffff98aa Reported by Kernel Concurrency Sanitizer on: CPU: 0 UID: 0 PID: 3640 Comm: syz.4.93 Not tainted 6.11.0-rc6-syzkaller-00183-gb831f83e40a2 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 ================================================================== syz.4.93 (3640) used greatest stack depth: 7384 bytes left