bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:1) rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P7335/1:b..l rcu: (detected by 0, t=10503 jiffies, g=188201, q=756 ncpus=2) task:syz-executor state:R running task stack:26440 pid:7335 tgid:7335 ppid:7294 task_flags:0x400140 flags:0x00004002 Call Trace: context_switch kernel/sched/core.c:5351 [inline] __schedule+0x1737/0x4d30 kernel/sched/core.c:6954 preempt_schedule_irq+0xb5/0x150 kernel/sched/core.c:7281 irqentry_exit+0x6f/0x90 kernel/entry/common.c:196 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:lookup_page_ext mm/page_ext.c:254 [inline] RIP: 0010:page_ext_lookup+0xf2/0x180 mm/page_ext.c:520 Code: 10 4c 89 f0 48 c1 e8 03 42 80 3c 28 00 74 08 4c 89 f7 e8 71 f2 f4 ff 49 8b 1e e8 e9 51 77 ff 89 c5 31 ff 89 c6 e8 ae d3 91 ff <85> ed 74 59 e8 65 cf 91 ff 48 85 db 40 0f 95 c5 48 89 de 48 83 e6 RSP: 0018:ffffc900049ff9d0 EFLAGS: 00000293 RAX: ffffffff822de142 RBX: ffff88801c600000 RCX: 0000000000000000 RDX: ffff888031031e00 RSI: 0000000000000001 RDI: 0000000000000000 RBP: 0000000000000001 R08: 0000000000000000 R09: ffffffff822c266e R10: 000000000000000f R11: ffffffff81ac3450 R12: 00000000000a29c1 R13: dffffc0000000000 R14: ffff88813fffa690 R15: 0000000000001000 page_ext_iter_begin include/linux/page_ext.h:132 [inline] __update_page_owner_free_handle+0x103/0x470 mm/page_owner.c:272 __reset_page_owner+0x85/0x1f0 mm/page_owner.c:309 reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1248 [inline] __free_frozen_pages+0xc71/0xe70 mm/page_alloc.c:2706 discard_slab mm/slub.c:2717 [inline] __put_partials+0x161/0x1c0 mm/slub.c:3186 put_cpu_partial+0x17c/0x250 mm/slub.c:3261 __slab_free+0x2f7/0x400 mm/slub.c:4513 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x97/0x140 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:329 kasan_slab_alloc include/linux/kasan.h:250 [inline] slab_post_alloc_hook mm/slub.c:4148 [inline] slab_alloc_node mm/slub.c:4197 [inline] kmem_cache_alloc_noprof+0x1c1/0x3c0 mm/slub.c:4204 alloc_empty_file+0x55/0x1d0 fs/file_table.c:237 alloc_file fs/file_table.c:354 [inline] alloc_file_pseudo+0x13d/0x210 fs/file_table.c:383 sock_alloc_file+0xb8/0x2e0 net/socket.c:470 sock_map_fd net/socket.c:500 [inline] __sys_socket+0x13d/0x1b0 net/socket.c:1740 __do_sys_socket net/socket.c:1745 [inline] __se_sys_socket net/socket.c:1743 [inline] __x64_sys_socket+0x7a/0x90 net/socket.c:1743 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f3ea5590a87 RSP: 002b:00007fffab8654a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000029 RAX: ffffffffffffffda RBX: 00007fffab8655e0 RCX: 00007f3ea5590a87 RDX: 0000000000000000 RSI: 0000000000080002 RDI: 0000000000000001 RBP: 00007fffab8654c0 R08: 000000000000000c R09: 00007fffab8655b8 R10: 0000000000000021 R11: 0000000000000246 R12: 0000000000000003 R13: 00007f3ea62e4620 R14: 0000000000000007 R15: 0000000000000000 bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:1) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:1) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:1) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:1) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:1) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:1) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:1) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:1) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:1) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:1)