bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:01:81:18:0f:af, vlan:0) rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P5859/1:b..l rcu: (detected by 0, t=10503 jiffies, g=62693, q=2111 ncpus=2) task:syz-executor state:R running task stack:21744 pid:5859 tgid:5859 ppid:5854 task_flags:0x400140 flags:0x00004002 Call Trace: context_switch kernel/sched/core.c:5357 [inline] __schedule+0x1798/0x4cc0 kernel/sched/core.c:6961 preempt_schedule_irq+0xb5/0x150 kernel/sched/core.c:7288 irqentry_exit+0x6f/0x90 kernel/entry/common.c:197 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697 RIP: 0010:__preempt_count_add kernel/rcu/tree.c:747 [inline] RIP: 0010:rcu_is_watching+0x6/0xb0 kernel/rcu/tree.c:750 Code: e8 cf ea 5b 03 eb cc 66 66 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 41 57 <41> 56 53 65 ff 05 40 ca 1a 11 e8 2b 75 d7 09 89 c3 83 f8 08 73 65 RSP: 0018:ffffc900041df5e8 EFLAGS: 00000297 RAX: 0000000000000001 RBX: 0000000000000000 RCX: 0000000000000002 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff8e33bfe0 RBP: ffffffff8173a1d5 R08: 0000000000000000 R09: 0000000000000000 R10: ffffc900041df818 R11: fffff5200083bf05 R12: 0000000000000002 R13: ffffffff8e33bfe0 R14: 0000000000000000 R15: 0000000000000000 trace_lock_acquire include/trace/events/lock.h:24 [inline] lock_acquire+0x5f/0x360 kernel/locking/lockdep.c:5831 rcu_lock_acquire include/linux/rcupdate.h:331 [inline] rcu_read_lock include/linux/rcupdate.h:841 [inline] class_rcu_constructor include/linux/rcupdate.h:1155 [inline] unwind_next_frame+0xc2/0x2390 arch/x86/kernel/unwind_orc.c:479 __unwind_start+0x5b9/0x760 arch/x86/kernel/unwind_orc.c:758 unwind_start arch/x86/include/asm/unwind.h:64 [inline] arch_stack_walk+0xe4/0x150 arch/x86/kernel/stacktrace.c:24 stack_trace_save+0x9c/0xe0 kernel/stacktrace.c:122 save_stack+0xf5/0x1f0 mm/page_owner.c:156 __reset_page_owner+0x71/0x1f0 mm/page_owner.c:308 reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1395 [inline] __free_frozen_pages+0xbc4/0xd30 mm/page_alloc.c:2895 discard_slab mm/slub.c:2753 [inline] __put_partials+0x146/0x170 mm/slub.c:3218 put_cpu_partial+0x17c/0x250 mm/slub.c:3293 __slab_free+0x2b9/0x390 mm/slub.c:4550 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:349 kasan_slab_alloc include/linux/kasan.h:250 [inline] slab_post_alloc_hook mm/slub.c:4180 [inline] slab_alloc_node mm/slub.c:4229 [inline] kmem_cache_alloc_noprof+0x1ad/0x390 mm/slub.c:4236 sk_prot_alloc+0x57/0x220 net/core/sock.c:2233 sk_alloc+0x3a/0x370 net/core/sock.c:2295 inet_create+0x7a0/0x1000 net/ipv4/af_inet.c:326 __sock_create+0x4b3/0x9f0 net/socket.c:1589 sock_create net/socket.c:1647 [inline] __sys_socket_create net/socket.c:1684 [inline] __sys_socket+0xd7/0x1b0 net/socket.c:1731 __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/0xfa0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f49e4390b07 RSP: 002b:00007ffcce23c618 EFLAGS: 00000202 ORIG_RAX: 0000000000000029 RAX: ffffffffffffffda RBX: 00000000ffffffff RCX: 00007f49e4390b07 RDX: 0000000000000006 RSI: 0000000000000001 RDI: 0000000000000002 RBP: 00007ffcce23cd4c R08: 0000000000000000 R09: 00007ffcce23ca57 R10: 0000000000000000 R11: 0000000000000202 R12: 00007f49e4584e60 R13: 00000000000927c0 R14: 000000000007ccc5 R15: 00007f49e4587020 bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:01:81:18:0f:af, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:01:81:18:0f:af, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:01:81:18:0f:af, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:01:81:18:0f:af, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:01:81:18:0f:af, vlan:0) net_ratelimit: 44021 callbacks suppressed bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:01:81:18:0f:af, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:01:81:18:0f:af, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:01:81:18:0f:af, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:01:81:18:0f:af, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:01:81:18:0f:af, vlan:0)