bridge0: received packet on veth0_to_bridge with own address as source address (addr:86:64:0d:8e:ca:3f, vlan:0) rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P6228/1:b..l P5499/1:b..l rcu: (detected by 1, t=10503 jiffies, g=14149, q=1322 ncpus=2) task:dhcpcd state:R running task stack:20608 pid:5499 tgid:5499 ppid:5498 flags:0x00000002 Call Trace: context_switch kernel/sched/core.c:5369 [inline] __schedule+0x1850/0x4c30 kernel/sched/core.c:6756 preempt_schedule_irq+0xfb/0x1c0 kernel/sched/core.c:7078 irqentry_exit+0x5e/0x90 kernel/entry/common.c:354 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:get_stack_info+0xc2/0xf0 arch/x86/kernel/dumpstack_64.c:213 Code: 48 c7 c7 bc fa 05 8e e8 9c 30 c9 ff eb cb be 01 00 00 00 48 c7 c7 80 61 76 8e 4c 89 e2 e8 e6 ec bc 03 4d 0f a3 e5 72 9a 8b 1b <48> 83 fb 40 73 0f b8 01 00 00 00 89 d9 48 d3 e0 49 09 06 eb a6 be RSP: 0018:ffffc90002fc7688 EFLAGS: 00000282 RAX: 0000000002fc7701 RBX: 0000000000000001 RCX: ffffc90002fc0000 RDX: ffffc90002fc7720 RSI: ffffc90002fc8000 RDI: ffffc90002fc76c0 RBP: ffff88802d195a00 R08: ffffc90002fc7701 R09: 0000000000000000 R10: ffffc90002fc7720 R11: fffff520005f8ef0 R12: 0000000000000001 R13: 0000000000000000 R14: ffffc90002fc7740 R15: 0000000000000000 __unwind_start+0x434/0x740 arch/x86/kernel/unwind_orc.c:729 unwind_start arch/x86/include/asm/unwind.h:64 [inline] arch_stack_walk+0xe5/0x150 arch/x86/kernel/stacktrace.c:24 stack_trace_save+0x118/0x1d0 kernel/stacktrace.c:122 save_stack+0xfb/0x1f0 mm/page_owner.c:156 __reset_page_owner+0x76/0x430 mm/page_owner.c:297 reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1127 [inline] free_unref_page+0xd3f/0x1010 mm/page_alloc.c:2659 discard_slab mm/slub.c:2688 [inline] __put_partials+0x160/0x1c0 mm/slub.c:3157 put_cpu_partial+0x17c/0x250 mm/slub.c:3232 __slab_free+0x290/0x380 mm/slub.c:4483 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x9a/0x140 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x14f/0x170 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x23/0x80 mm/kasan/common.c:329 kasan_slab_alloc include/linux/kasan.h:250 [inline] slab_post_alloc_hook mm/slub.c:4119 [inline] slab_alloc_node mm/slub.c:4168 [inline] kmem_cache_alloc_lru_noprof+0x1dd/0x390 mm/slub.c:4187 sock_alloc_inode+0x28/0xc0 net/socket.c:307 alloc_inode+0x65/0x1a0 fs/inode.c:336 sock_alloc net/socket.c:615 [inline] __sock_create+0x127/0xa30 net/socket.c:1533 sock_create net/socket.c:1627 [inline] __sys_socketpair+0x2ca/0x720 net/socket.c:1774 __do_sys_socketpair net/socket.c:1827 [inline] __se_sys_socketpair net/socket.c:1824 [inline] __x64_sys_socketpair+0x9b/0xb0 net/socket.c:1824 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fde21f86c0a RSP: 002b:00007ffebaa389a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000035 RAX: ffffffffffffffda RBX: 0000565297dc6bb8 RCX: 00007fde21f86c0a RDX: 0000000000000000 RSI: 0000000000080802 RDI: 0000000000000001 RBP: 00007ffebaa58e18 R08: 00007ffebaa389d0 R09: 0000565297dc6b80 R10: 00007ffebaa389d0 R11: 0000000000000246 R12: 00007ffebaa58e18 R13: 0000565297dc6b80 R14: 0000000000000000 R15: 0000565297dc6bb4 task:syz.4.84 state:R running task stack:26232 pid:6228 tgid:6227 ppid:5832 flags:0x00004000 Call Trace: context_switch kernel/sched/core.c:5369 [inline] __schedule+0x1850/0x4c30 kernel/sched/core.c:6756 preempt_schedule_common+0x84/0xd0 kernel/sched/core.c:6935 preempt_schedule+0xe1/0xf0 kernel/sched/core.c:6959 preempt_schedule_thunk+0x1a/0x30 arch/x86/entry/thunk.S:12 __raw_spin_unlock include/linux/spinlock_api_smp.h:143 [inline] _raw_spin_unlock+0x3e/0x50 kernel/locking/spinlock.c:186 spin_unlock include/linux/spinlock.h:391 [inline] zap_pte_range mm/memory.c:1705 [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+0x36c3/0x4040 mm/memory.c:1824 unmap_vmas+0x3cc/0x5f0 mm/memory.c:1914 exit_mmap+0x275/0xc20 mm/mmap.c:1668 __mmput+0x115/0x3c0 kernel/fork.c:1348 exit_mm+0x220/0x310 kernel/exit.c:570 do_exit+0x9ad/0x28e0 kernel/exit.c:925 do_group_exit+0x207/0x2c0 kernel/exit.c:1087 get_signal+0x16b2/0x1750 kernel/signal.c:3017 arch_do_signal_or_restart+0x96/0x860 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+0xce/0x340 kernel/entry/common.c:218 do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f2c85d85d29 RSP: 002b:00007f2c86c100e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 00007f2c85f75fa8 RCX: 00007f2c85d85d29 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f2c85f75fa8 RBP: 00007f2c85f75fa0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f2c85f75fac R13: 0000000000000000 R14: 00007ffe65a75230 R15: 00007ffe65a75318 rcu: rcu_preempt kthread starved for 10464 jiffies! g14149 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. rcu: RCU grace-period kthread stack dump: task:rcu_preempt state:R running task stack:25976 pid:18 tgid:18 ppid:2 flags:0x00004000 Call Trace: context_switch kernel/sched/core.c:5369 [inline] __schedule+0x1850/0x4c30 kernel/sched/core.c:6756 __schedule_loop kernel/sched/core.c:6833 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6848 schedule_timeout+0x15a/0x290 kernel/time/sleep_timeout.c:99 rcu_gp_fqs_loop+0x2df/0x1330 kernel/rcu/tree.c:2045 rcu_gp_kthread+0xa7/0x3b0 kernel/rcu/tree.c:2247 kthread+0x2f0/0x390 kernel/kthread.c:389 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 rcu: Stack dump where RCU GP kthread last ran: Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 6125 Comm: syz.1.58 Not tainted 6.13.0-rc5-syzkaller-00816-g912d6f669725 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 RIP: 0010:get_current arch/x86/include/asm/current.h:49 [inline] RIP: 0010:__sanitizer_cov_trace_pc+0x8/0x70 kernel/kcov.c:216 Code: 8b 3d 84 9f 8f 0c 48 89 de 5b e9 e3 f7 5a 00 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 48 8b 04 24 <65> 48 8b 0c 25 00 d6 03 00 65 8b 15 10 62 64 7e 81 e2 00 01 ff 00 RSP: 0018:ffffc90000006358 EFLAGS: 00000246 RAX: ffffffff8a6f9c96 RBX: 0000000000000000 RCX: dffffc0000000000 RDX: ffff88802e759e00 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffff8880439fe8b8 R08: ffffffff8a6f9c3b R09: ffffc90000006690 R10: ffffc90000006680 R11: fffff52000000c9e R12: ffff8880455a4654 R13: ffff8880439fe8cf R14: 1ffff1100873fd19 R15: 1ffff1100873fd17 FS: 00007faf80f586c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f2c86beef98 CR3: 000000007fa48000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: find_match+0x1a6/0xc10 net/ipv6/route.c:747 __find_rr_leaf+0x275/0x8e0 net/ipv6/route.c:835 find_rr_leaf net/ipv6/route.c:856 [inline] rt6_select net/ipv6/route.c:900 [inline] fib6_table_lookup+0x413/0xbb0 net/ipv6/route.c:2195 ip6_pol_route+0x273/0x15d0 net/ipv6/route.c:2231 pol_lookup_func include/net/ip6_fib.h:616 [inline] fib6_rule_lookup+0x58c/0x790 net/ipv6/fib6_rules.c:119 ip6_route_input_lookup net/ipv6/route.c:2300 [inline] ip6_route_input+0x859/0xd90 net/ipv6/route.c:2596 ip6_rcv_finish+0x144/0x180 net/ipv6/ip6_input.c:77 ip_sabotage_in+0x203/0x290 net/bridge/br_netfilter_hooks.c:1021 nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline] nf_hook_slow+0xc3/0x220 net/netfilter/core.c:626 nf_hook include/linux/netfilter.h:269 [inline] NF_HOOK+0x29e/0x450 include/linux/netfilter.h:312 __netif_receive_skb_one_core net/core/dev.c:5674 [inline] __netif_receive_skb+0x1ea/0x650 net/core/dev.c:5787 netif_receive_skb_internal net/core/dev.c:5873 [inline] netif_receive_skb+0x1e8/0x890 net/core/dev.c:5932 NF_HOOK+0x9e/0x400 include/linux/netfilter.h:314 br_handle_frame_finish+0x1905/0x2000 br_nf_hook_thresh+0x472/0x590 br_nf_pre_routing_finish_ipv6+0xaa0/0xdd0 NF_HOOK include/linux/netfilter.h:314 [inline] br_nf_pre_routing_ipv6+0x379/0x770 net/bridge/br_netfilter_ipv6.c:184 nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline] nf_hook_bridge_pre net/bridge/br_input.c:282 [inline] br_handle_frame+0x9f3/0x1530 net/bridge/br_input.c:433 __netif_receive_skb_core+0x14eb/0x4690 net/core/dev.c:5568 __netif_receive_skb_one_core net/core/dev.c:5672 [inline] __netif_receive_skb+0x12f/0x650 net/core/dev.c:5787 process_backlog+0x662/0x15b0 net/core/dev.c:6119 __napi_poll+0xcb/0x490 net/core/dev.c:6885 napi_poll net/core/dev.c:6954 [inline] net_rx_action+0x89b/0x1240 net/core/dev.c:7076 handle_softirqs+0x2d4/0x9b0 kernel/softirq.c:561 do_softirq+0x11b/0x1e0 kernel/softirq.c:462 __local_bh_enable_ip+0x1bb/0x200 kernel/softirq.c:389 spin_unlock_bh include/linux/spinlock.h:396 [inline] hash_ipmark4_add+0x17b2/0x2320 net/netfilter/ipset/ip_set_hash_gen.h:996 hash_ipmark4_uadt+0x7b5/0xb50 net/netfilter/ipset/ip_set_hash_ipmark.c:159 call_ad+0x279/0xa70 net/netfilter/ipset/ip_set_core.c:1751 ip_set_ad+0x7e0/0x990 net/netfilter/ipset/ip_set_core.c:1841 nfnetlink_rcv_msg+0xbec/0x1180 net/netfilter/nfnetlink.c:302 netlink_rcv_skb+0x1e3/0x430 net/netlink/af_netlink.c:2543 nfnetlink_rcv+0x297/0x2ab0 net/netfilter/nfnetlink.c:667 netlink_unicast_kernel net/netlink/af_netlink.c:1322 [inline] netlink_unicast+0x7f6/0x990 net/netlink/af_netlink.c:1348 netlink_sendmsg+0x8e4/0xcb0 net/netlink/af_netlink.c:1892 sock_sendmsg_nosec net/socket.c:711 [inline] __sock_sendmsg+0x221/0x270 net/socket.c:726 ____sys_sendmsg+0x52a/0x7e0 net/socket.c:2594 ___sys_sendmsg net/socket.c:2648 [inline] __sys_sendmsg+0x269/0x350 net/socket.c:2680 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7faf80185d29 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:00007faf80f58038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007faf80375fa0 RCX: 00007faf80185d29 RDX: 00000000040c0080 RSI: 00000000200002c0 RDI: 0000000000000008 RBP: 00007faf80201b08 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007faf80375fa0 R15: 00007ffcd9758778 net_ratelimit: 16912 callbacks suppressed bridge0: received packet on veth0_to_bridge with own address as source address (addr:86:64:0d:8e:ca:3f, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:86:64:0d:8e:ca:3f, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:86:64:0d:8e:ca:3f, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:86:64:0d:8e:ca:3f, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:86:64:0d:8e:ca:3f, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) net_ratelimit: 21626 callbacks suppressed bridge0: received packet on veth0_to_bridge with own address as source address (addr:86:64:0d:8e:ca:3f, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:86:64:0d:8e:ca:3f, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:86:64:0d:8e:ca:3f, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:86:64:0d:8e:ca:3f, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:86:64:0d:8e:ca:3f, vlan:0)