================================================================== BUG: KCSAN: data-race in mem_cgroup_flush_stats_ratelimited / tick_do_update_jiffies64 read-write to 0xffffffff866089c0 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:1739 [inline] __hrtimer_run_queues+0x20d/0x5e0 kernel/time/hrtimer.c:1803 hrtimer_interrupt+0x235/0x4a0 kernel/time/hrtimer.c:1865 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1038 [inline] __sysvec_apic_timer_interrupt+0x5c/0x1d0 arch/x86/kernel/apic/apic.c:1055 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline] sysvec_apic_timer_interrupt+0x6e/0x80 arch/x86/kernel/apic/apic.c:1049 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 __mod_memcg_lruvec_state+0x61/0x290 __mod_lruvec_state mm/memcontrol.c:789 [inline] __lruvec_stat_mod_folio+0xd2/0x120 mm/memcontrol.c:809 __folio_mod_stat mm/rmap.c:1301 [inline] __folio_remove_rmap mm/rmap.c:1593 [inline] folio_remove_rmap_ptes+0x12f/0x1a0 mm/rmap.c:1620 zap_present_folio_ptes mm/memory.c:1526 [inline] zap_present_ptes mm/memory.c:1585 [inline] zap_pte_range mm/memory.c:1627 [inline] zap_pmd_range mm/memory.c:1753 [inline] zap_pud_range mm/memory.c:1782 [inline] zap_p4d_range mm/memory.c:1803 [inline] unmap_page_range+0x10f3/0x2380 mm/memory.c:1824 unmap_single_vma+0x142/0x1d0 mm/memory.c:1870 unmap_vmas+0x18d/0x2b0 mm/memory.c:1914 exit_mmap+0x18a/0x680 mm/mmap.c:1667 __mmput+0x28/0x1b0 kernel/fork.c:1347 mmput+0x4c/0x60 kernel/fork.c:1369 exit_mm+0xe4/0x190 kernel/exit.c:570 do_exit+0x55e/0x17f0 kernel/exit.c:925 do_group_exit+0x102/0x150 kernel/exit.c:1087 get_signal+0xeb9/0x1000 kernel/signal.c:3016 arch_do_signal_or_restart+0x95/0x4b0 arch/x86/kernel/signal.c:337 exit_to_user_mode_loop kernel/entry/common.c:111 [inline] exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline] syscall_exit_to_user_mode+0x62/0x120 kernel/entry/common.c:218 do_syscall_64+0xd6/0x1c0 arch/x86/entry/common.c:89 entry_SYSCALL_64_after_hwframe+0x77/0x7f read to 0xffffffff866089c0 of 8 bytes by task 4461 on cpu 0: mem_cgroup_flush_stats_ratelimited+0x29/0x70 mm/memcontrol.c:640 count_shadow_nodes+0x6b/0x230 mm/workingset.c:683 do_shrink_slab+0x5a/0x680 mm/shrinker.c:384 shrink_slab_memcg mm/shrinker.c:550 [inline] shrink_slab+0x4ea/0x850 mm/shrinker.c:628 shrink_node_memcgs mm/vmscan.c:5931 [inline] shrink_node+0x63f/0x1d80 mm/vmscan.c:5970 shrink_zones mm/vmscan.c:6215 [inline] do_try_to_free_pages+0x3c6/0xc50 mm/vmscan.c:6277 try_to_free_mem_cgroup_pages+0x1e3/0x490 mm/vmscan.c:6609 try_charge_memcg+0x2bc/0x7f0 mm/memcontrol.c:2238 obj_cgroup_charge_pages+0xbd/0x1a0 mm/memcontrol.c:2646 __memcg_kmem_charge_page+0x9d/0x170 mm/memcontrol.c:2673 __alloc_pages_noprof+0x1bc/0x340 mm/page_alloc.c:4768 alloc_pages_mpol_noprof+0xb1/0x1e0 mm/mempolicy.c:2265 alloc_pages_noprof+0xe1/0x100 mm/mempolicy.c:2344 vm_area_alloc_pages mm/vmalloc.c:3589 [inline] __vmalloc_area_node mm/vmalloc.c:3667 [inline] __vmalloc_node_range_noprof+0x6eb/0xe80 mm/vmalloc.c:3844 __kvmalloc_node_noprof+0x121/0x170 mm/util.c:680 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:2541 nfnetlink_rcv+0x16c/0x15d0 net/netfilter/nfnetlink.c:667 netlink_unicast_kernel net/netlink/af_netlink.c:1321 [inline] netlink_unicast+0x599/0x670 net/netlink/af_netlink.c:1347 netlink_sendmsg+0x5cc/0x6e0 net/netlink/af_netlink.c:1891 sock_sendmsg_nosec net/socket.c:711 [inline] __sock_sendmsg+0x140/0x180 net/socket.c:726 ____sys_sendmsg+0x312/0x410 net/socket.c:2583 ___sys_sendmsg net/socket.c:2637 [inline] __sys_sendmsg+0x19d/0x230 net/socket.c:2669 __do_sys_sendmsg net/socket.c:2674 [inline] __se_sys_sendmsg net/socket.c:2672 [inline] __x64_sys_sendmsg+0x46/0x50 net/socket.c:2672 x64_sys_call+0x2734/0x2dc0 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: 0x00000000ffffa20b -> 0x00000000ffffa20c Reported by Kernel Concurrency Sanitizer on: CPU: 0 UID: 0 PID: 4461 Comm: syz.2.319 Not tainted 6.12.0-syzkaller-09073-g9f16d5e6f220 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 ==================================================================