Memory cgroup out of memory: Killed process 18342 (syz.1.4963) total-vm:93880kB, anon-rss:936kB, file-rss:22440kB, shmem-rss:128kB, UID:0 pgtables:148kB oom_score_adj:1000 ================================================================== BUG: KCSAN: data-race in mem_cgroup_flush_stats_ratelimited / tick_do_update_jiffies64 read-write to 0xffffffff868099c0 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:1761 [inline] __hrtimer_run_queues+0x221/0x5f0 kernel/time/hrtimer.c:1825 hrtimer_interrupt+0x235/0x4a0 kernel/time/hrtimer.c:1887 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 __preempt_count_dec_and_test arch/x86/include/asm/preempt.h:95 [inline] __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:160 [inline] _raw_spin_unlock_irq+0x2f/0x50 kernel/locking/spinlock.c:202 spin_unlock_irq include/linux/spinlock.h:401 [inline] evict_folios+0x2d93/0x2fb0 mm/vmscan.c:4745 try_to_shrink_lruvec+0x405/0x590 mm/vmscan.c:4859 lru_gen_shrink_lruvec mm/vmscan.c:5008 [inline] shrink_lruvec+0x220/0x1970 mm/vmscan.c:5753 shrink_node_memcgs mm/vmscan.c:5989 [inline] shrink_node+0x60b/0x1da0 mm/vmscan.c:6030 shrink_zones mm/vmscan.c:6274 [inline] do_try_to_free_pages+0x3c6/0xc10 mm/vmscan.c:6336 try_to_free_mem_cgroup_pages+0x1e6/0x4a0 mm/vmscan.c:6664 try_charge_memcg+0x3ab/0x890 mm/memcontrol.c:2304 try_charge mm/memcontrol.c:2446 [inline] charge_memcg+0x50/0xc0 mm/memcontrol.c:4592 mem_cgroup_swapin_charge_folio+0xd0/0x150 mm/memcontrol.c:4678 __read_swap_cache_async+0x207/0x3b0 mm/swap_state.c:444 swap_cluster_readahead+0x27f/0x400 mm/swap_state.c:616 swapin_readahead+0xe6/0x6f0 mm/swap_state.c:814 do_swap_page+0x31c/0x2510 mm/memory.c:4532 handle_pte_fault mm/memory.c:6000 [inline] __handle_mm_fault mm/memory.c:6140 [inline] handle_mm_fault+0x8ed/0x2e80 mm/memory.c:6309 do_user_addr_fault arch/x86/mm/fault.c:1337 [inline] handle_page_fault arch/x86/mm/fault.c:1480 [inline] exc_page_fault+0x3b9/0x6a0 arch/x86/mm/fault.c:1538 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623 read to 0xffffffff868099c0 of 8 bytes by task 25217 on cpu 0: mem_cgroup_flush_stats_ratelimited+0x29/0x70 mm/memcontrol.c:643 count_shadow_nodes+0x6b/0x230 mm/workingset.c:680 do_shrink_slab+0x5e/0x6a0 mm/shrinker.c:384 shrink_slab_memcg mm/shrinker.c:550 [inline] shrink_slab+0x4f2/0x860 mm/shrinker.c:628 shrink_node_memcgs mm/vmscan.c:5991 [inline] shrink_node+0x647/0x1da0 mm/vmscan.c:6030 shrink_zones mm/vmscan.c:6274 [inline] do_try_to_free_pages+0x3c6/0xc10 mm/vmscan.c:6336 try_to_free_mem_cgroup_pages+0x1e6/0x4a0 mm/vmscan.c:6664 try_charge_memcg+0x3ab/0x890 mm/memcontrol.c:2304 obj_cgroup_charge_pages+0xc0/0x1a0 mm/memcontrol.c:2695 __memcg_kmem_charge_page+0x9d/0x170 mm/memcontrol.c:2739 __alloc_frozen_pages_noprof+0x1a6/0x360 mm/page_alloc.c:4987 alloc_pages_mpol+0xb6/0x260 mm/mempolicy.c:2301 alloc_frozen_pages_noprof mm/mempolicy.c:2372 [inline] alloc_pages_noprof+0xe8/0x130 mm/mempolicy.c:2392 vm_area_alloc_pages mm/vmalloc.c:3591 [inline] __vmalloc_area_node mm/vmalloc.c:3669 [inline] __vmalloc_node_range_noprof+0x6ea/0xe80 mm/vmalloc.c:3844 __kvmalloc_node_noprof+0x311/0x520 mm/slub.c:5048 ip_set_alloc+0x1f/0x30 net/netfilter/ipset/ip_set_core.c:261 hash_netiface_create+0x273/0x730 net/netfilter/ipset/ip_set_hash_gen.h:1568 ip_set_create+0x3b6/0x970 net/netfilter/ipset/ip_set_core.c:1109 nfnetlink_rcv_msg+0x4ba/0x580 net/netfilter/nfnetlink.c:302 netlink_rcv_skb+0x12f/0x230 net/netlink/af_netlink.c:2534 nfnetlink_rcv+0x187/0x1610 net/netfilter/nfnetlink.c:667 netlink_unicast_kernel net/netlink/af_netlink.c:1313 [inline] netlink_unicast+0x605/0x6c0 net/netlink/af_netlink.c:1339 netlink_sendmsg+0x609/0x720 net/netlink/af_netlink.c:1883 sock_sendmsg_nosec net/socket.c:712 [inline] __sock_sendmsg+0x140/0x180 net/socket.c:727 ____sys_sendmsg+0x350/0x4e0 net/socket.c:2566 ___sys_sendmsg net/socket.c:2620 [inline] __sys_sendmsg+0x1a0/0x240 net/socket.c:2652 __do_sys_sendmsg net/socket.c:2657 [inline] __se_sys_sendmsg net/socket.c:2655 [inline] __x64_sys_sendmsg+0x46/0x50 net/socket.c:2655 x64_sys_call+0x26f3/0x2e10 arch/x86/include/generated/asm/syscalls_64.h:47 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xc9/0x1a0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f value changed: 0x000000010000370f -> 0x0000000100003710 Reported by Kernel Concurrency Sanitizer on: CPU: 0 UID: 0 PID: 25217 Comm: syz.1.7389 Not tainted 6.15.0-rc3-syzkaller-00019-gbc3372351d0c #0 PREEMPT(voluntary) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 ================================================================== syz.1.7389 invoked oom-killer: gfp_mask=0x402dc2(GFP_KERNEL_ACCOUNT|__GFP_HIGHMEM|__GFP_ZERO|__GFP_NOWARN), order=0, oom_score_adj=1000 CPU: 1 UID: 0 PID: 25217 Comm: syz.1.7389 Not tainted 6.15.0-rc3-syzkaller-00019-gbc3372351d0c #0 PREEMPT(voluntary) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0xf6/0x150 lib/dump_stack.c:120 dump_stack+0x15/0x1a lib/dump_stack.c:129 dump_header+0x83/0x2d0 mm/oom_kill.c:467 oom_kill_process+0x341/0x4c0 mm/oom_kill.c:1040 out_of_memory+0x9d1/0xc20 mm/oom_kill.c:1178 mem_cgroup_out_of_memory+0x13f/0x190 mm/memcontrol.c:1667 mem_cgroup_oom mm/memcontrol.c:1690 [inline] try_charge_memcg+0x5f1/0x890 mm/memcontrol.c:2346 obj_cgroup_charge_pages+0xc0/0x1a0 mm/memcontrol.c:2695 __memcg_kmem_charge_page+0x9d/0x170 mm/memcontrol.c:2739 __alloc_frozen_pages_noprof+0x1a6/0x360 mm/page_alloc.c:4987 alloc_pages_mpol+0xb6/0x260 mm/mempolicy.c:2301 alloc_frozen_pages_noprof mm/mempolicy.c:2372 [inline] alloc_pages_noprof+0xe8/0x130 mm/mempolicy.c:2392 vm_area_alloc_pages mm/vmalloc.c:3591 [inline] __vmalloc_area_node mm/vmalloc.c:3669 [inline] __vmalloc_node_range_noprof+0x6ea/0xe80 mm/vmalloc.c:3844 __kvmalloc_node_noprof+0x311/0x520 mm/slub.c:5048 ip_set_alloc+0x1f/0x30 net/netfilter/ipset/ip_set_core.c:261 hash_netiface_create+0x273/0x730 net/netfilter/ipset/ip_set_hash_gen.h:1568 ip_set_create+0x3b6/0x970 net/netfilter/ipset/ip_set_core.c:1109 nfnetlink_rcv_msg+0x4ba/0x580 net/netfilter/nfnetlink.c:302 netlink_rcv_skb+0x12f/0x230 net/netlink/af_netlink.c:2534 nfnetlink_rcv+0x187/0x1610 net/netfilter/nfnetlink.c:667 netlink_unicast_kernel net/netlink/af_netlink.c:1313 [inline] netlink_unicast+0x605/0x6c0 net/netlink/af_netlink.c:1339 netlink_sendmsg+0x609/0x720 net/netlink/af_netlink.c:1883 sock_sendmsg_nosec net/socket.c:712 [inline] __sock_sendmsg+0x140/0x180 net/socket.c:727 ____sys_sendmsg+0x350/0x4e0 net/socket.c:2566 ___sys_sendmsg net/socket.c:2620 [inline] __sys_sendmsg+0x1a0/0x240 net/socket.c:2652 __do_sys_sendmsg net/socket.c:2657 [inline] __se_sys_sendmsg net/socket.c:2655 [inline] __x64_sys_sendmsg+0x46/0x50 net/socket.c:2655 x64_sys_call+0x26f3/0x2e10 arch/x86/include/generated/asm/syscalls_64.h:47 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xc9/0x1a0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7feaa0a1e169 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fea9f087038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007feaa0c45fa0 RCX: 00007feaa0a1e169 RDX: 0000000000000000 RSI: 0000200000000100 RDI: 0000000000000006 RBP: 00007feaa0aa0a68 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007feaa0c45fa0 R15: 00007ffcc4a86af8 memory: usage 307200kB, limit 307200kB, failcnt 3962 memory+swap: usage 307552kB, limit 9007199254740988kB, failcnt 0 kmem: usage 307180kB, limit 9007199254740988kB, failcnt 0 Memory cgroup stats for /syz1: cache 0 rss 0 shmem 0 mapped_file 0 dirty 0 writeback 0 workingset_refault_anon 131 workingset_refault_file 9180 swap 360448 swapcached 20480 pgpgin 328085 pgpgout 328080 pgfault 280209 pgmajfault 87 inactive_anon 20480 active_anon 0 inactive_file 0 active_file 0 unevictable 0 hierarchical_memory_limit 314572800 hierarchical_memsw_limit 9223372036854771712 total_cache 0 total_rss 0 total_shmem 0 total_mapped_file 0 total_dirty 0 total_writeback 0 total_workingset_refault_anon 131 total_workingset_refault_file 9180 total_swap 360448 total_swapcached 20480 total_pgpgin 328087 total_pgpgout 328082 total_pgfault 280212 total_pgmajfault 87 total_inactive_anon 20480 total_active_anon 0 total_inactive_file 0 total_active_file 0 total_unevictable 0 oom-kill:constraint=CONSTRAINT_MEMCG,nodemask=(null),cpuset=/,mems_allowed=0,oom_memcg=/syz1,task_memcg=/syz1,task=syz.1.7389,pid=25216,uid=0 Memory cgroup out of memory: Killed process 25216 (syz.1.7389) total-vm:93616kB, anon-rss:1016kB, file-rss:22248kB, shmem-rss:0kB, UID:0 pgtables:124kB oom_score_adj:1000