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): P6425/1:b..l rcu: (detected by 1, t=10502 jiffies, g=20097, q=1638 ncpus=2) task:syz.2.168 state:R running task stack:26152 pid:6425 tgid:6424 ppid:5652 task_flags:0x400140 flags:0x00080002 Call Trace: context_switch kernel/sched/core.c:5388 [inline] __schedule+0x1821/0x5740 kernel/sched/core.c:7189 preempt_schedule_irq+0x4d/0xa0 kernel/sched/core.c:7513 irqentry_exit_to_kernel_mode include/linux/irq-entry-common.h:539 [inline] irqentry_exit+0x14f/0x8b0 kernel/entry/common.c:164 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697 RIP: 0010:lock_acquire+0x221/0x350 kernel/locking/lockdep.c:5872 Code: ff ff ff e8 01 de 05 0a f7 44 24 08 00 02 00 00 0f 84 3a ff ff ff 65 48 8b 05 db 58 96 11 48 3b 44 24 58 75 33 fb 48 83 c4 60 <5b> 41 5c 41 5d 41 5e 41 5f 5d e9 ab 99 6e ff cc 48 8d 3d e8 ed 91 RSP: 0018:ffffc9000776efd8 EFLAGS: 00000286 RAX: a8f5c86b53853c00 RBX: 0000000000000000 RCX: 0000000000000046 RDX: 00000000a1697acb RSI: ffffffff8e217397 RDI: ffffffff8c28b9e0 RBP: ffffffff823ad20e R08: ffffffff823ad20e R09: ffffffff8e95cd20 R10: 0000000000000010 R11: ffffffff81b0e210 R12: 0000000000000002 R13: ffffffff8e95cd20 R14: 0000000000000000 R15: 0000000000000246 rcu_lock_acquire include/linux/rcupdate.h:300 [inline] rcu_read_lock include/linux/rcupdate.h:838 [inline] __update_page_owner_free_handle+0x4b/0x470 mm/page_owner.c:283 __reset_page_owner+0x85/0x1f0 mm/page_owner.c:321 reset_page_owner include/linux/page_owner.h:25 [inline] __free_pages_prepare mm/page_alloc.c:1397 [inline] __free_frozen_pages+0xc1c/0xd30 mm/page_alloc.c:2938 __slab_free+0x274/0x2c0 mm/slub.c:5613 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x99/0x100 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:350 kasan_slab_alloc include/linux/kasan.h:253 [inline] slab_post_alloc_hook mm/slub.c:4570 [inline] slab_alloc_node mm/slub.c:4899 [inline] __do_kmalloc_node mm/slub.c:5295 [inline] __kmalloc_node_noprof+0x498/0x7c0 mm/slub.c:5302 kmalloc_node_noprof include/linux/slab.h:1081 [inline] alloc_slab_obj_exts+0xbf/0x250 mm/slub.c:2171 __memcg_slab_post_alloc_hook+0x5c4/0xe80 mm/memcontrol.c:3478 memcg_slab_post_alloc_hook mm/slub.c:2461 [inline] slab_post_alloc_hook mm/slub.c:4581 [inline] slab_alloc_node mm/slub.c:4899 [inline] kmem_cache_alloc_node_noprof+0x40e/0x690 mm/slub.c:4951 __alloc_skb+0x1d0/0x7d0 net/core/skbuff.c:702 alloc_skb include/linux/skbuff.h:1385 [inline] alloc_skb_with_frags+0xc8/0x760 net/core/skbuff.c:6766 sock_alloc_send_pskb+0x878/0x990 net/core/sock.c:3007 unix_dgram_sendmsg+0x460/0x18d0 net/unix/af_unix.c:2141 sock_sendmsg_nosec net/socket.c:787 [inline] __sock_sendmsg net/socket.c:802 [inline] ____sys_sendmsg+0x972/0x9f0 net/socket.c:2699 ___sys_sendmsg+0x2a5/0x360 net/socket.c:2753 __sys_sendmmsg+0x27c/0x4e0 net/socket.c:2842 __do_sys_sendmmsg net/socket.c:2869 [inline] __se_sys_sendmmsg net/socket.c:2866 [inline] __x64_sys_sendmmsg+0xa0/0xc0 net/socket.c:2866 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f77f3f9ce59 RSP: 002b:00007f77f4e25028 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 RAX: ffffffffffffffda RBX: 00007f77f4215fa0 RCX: 00007f77f3f9ce59 RDX: 0000000000000318 RSI: 00002000000bd000 RDI: 0000000000000006 RBP: 00007f77f4032d6f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f77f4216038 R14: 00007f77f4215fa0 R15: 00007ffee5cc3358 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:46:47:7a:74:65:97, 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:46:47:7a:74:65:97, 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: 15393 callbacks suppressed 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:46:47:7a:74:65:97, 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:46:47:7a:74:65:97, vlan:0)