bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P26619/1:b..l rcu: (detected by 0, t=10503 jiffies, g=296321, q=2733 ncpus=2) task:syz-executor state:R running task stack:21672 pid:26619 tgid:26619 ppid:1 task_flags:0x400140 flags:0x00080003 Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x1798/0x4cc0 kernel/sched/core.c:6929 preempt_schedule_irq+0xb5/0x150 kernel/sched/core.c:7256 irqentry_exit+0x6f/0x90 kernel/entry/common.c:211 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697 RIP: 0010:debug_lockdep_rcu_enabled+0xd/0x40 kernel/rcu/update.c:320 Code: cc cc cc cc cc cc cc cc cc cc cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 31 c0 83 3d a7 3c 36 04 00 <74> 1e 83 3d aa 6b 36 04 00 74 15 65 48 8b 0c 25 08 80 6e 92 31 c0 RSP: 0018:ffffc9000f81f538 EFLAGS: 00000202 RAX: 0000000000000000 RBX: ffff88801b600000 RCX: ffff888024759e40 RDX: 0000000000000000 RSI: 0000000000001000 RDI: 0000000000000000 RBP: 0000000000000001 R08: 0000000000000000 R09: ffffffff8230db2a R10: dffffc0000000000 R11: ffffed100b070e4a R12: 0000000000065b87 R13: dffffc0000000000 R14: ffff88813fffa590 R15: 0000000000001000 rcu_read_lock_held_common kernel/rcu/update.c:105 [inline] rcu_read_lock_held+0xa/0x50 kernel/rcu/update.c:349 lookup_page_ext mm/page_ext.c:254 [inline] page_ext_lookup+0xe7/0x180 mm/page_ext.c:509 page_ext_iter_begin include/linux/page_ext.h:132 [inline] __page_table_check_zero+0x18f/0x530 mm/page_table_check.c:139 page_table_check_free include/linux/page_table_check.h:43 [inline] free_pages_prepare mm/page_alloc.c:1395 [inline] __free_frozen_pages+0xbd7/0xd30 mm/page_alloc.c:2901 __kasan_populate_vmalloc mm/kasan/shadow.c:401 [inline] kasan_populate_vmalloc+0x256/0x270 mm/kasan/shadow.c:435 alloc_vmap_area+0xd7a/0x14c0 mm/vmalloc.c:2098 __get_vm_area_node+0x1f8/0x300 mm/vmalloc.c:3193 __vmalloc_node_range_noprof+0x30c/0x12d0 mm/vmalloc.c:3857 __vmalloc_node_noprof mm/vmalloc.c:3960 [inline] vzalloc_noprof+0xb2/0xf0 mm/vmalloc.c:4034 __do_replace+0xab/0x970 net/ipv4/netfilter/ip_tables.c:1046 do_replace net/ipv4/netfilter/ip_tables.c:1141 [inline] do_ipt_set_ctl+0xa0d/0xcd0 net/ipv4/netfilter/ip_tables.c:1635 nf_setsockopt+0x26f/0x290 net/netfilter/nf_sockopt.c:101 do_sock_setsockopt+0x17c/0x1b0 net/socket.c:2360 __sys_setsockopt net/socket.c:2385 [inline] __do_sys_setsockopt net/socket.c:2391 [inline] __se_sys_setsockopt net/socket.c:2388 [inline] __x64_sys_setsockopt+0x13f/0x1b0 net/socket.c:2388 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f2fd459163a RSP: 002b:00007fff54507558 EFLAGS: 00000202 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 00007fff545075e0 RCX: 00007f2fd459163a RDX: 0000000000000040 RSI: 0000000000000000 RDI: 0000000000000003 RBP: 0000000000000003 R08: 00000000000002d8 R09: 0079746972756365 R10: 00007f2fd47b99c0 R11: 0000000000000202 R12: 00007f2fd47b9960 R13: 00007fff5450757c R14: 0000000000000000 R15: 00007f2fd47ba020 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:0c, 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:aa:aa:aa:aa:aa:0c, 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 bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, 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:aa:aa:aa:aa:aa:0c, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0)