bridge0: received packet on veth0_to_bridge with own address as source address (addr:52:e1:c7:fb:0d:ca, vlan:0) rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P975/1:b..l rcu: (detected by 1, t=10503 jiffies, g=37981, q=440 ncpus=2) task:kworker/1:3 state:R running task stack:23240 pid:975 tgid:975 ppid:2 task_flags:0x4288060 flags:0x00004000 Workqueue: usb_hub_wq hub_event Call Trace: context_switch kernel/sched/core.c:5382 [inline] __schedule+0x116f/0x5de0 kernel/sched/core.c:6767 preempt_schedule_irq+0x51/0x90 kernel/sched/core.c:7090 irqentry_exit+0x36/0x90 kernel/entry/common.c:354 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:__sanitizer_cov_trace_pc+0x62/0x70 kernel/kcov.c:233 Code: c0 74 2b 8b 82 18 16 00 00 83 f8 02 75 20 48 8b 8a 20 16 00 00 8b 92 1c 16 00 00 48 8b 01 48 83 c0 01 48 39 d0 73 07 48 89 01 <48> 89 34 c1 e9 85 d2 b4 09 0f 1f 44 00 00 90 90 90 90 90 90 90 90 RSP: 0018:ffffc900037cf4e0 EFLAGS: 00000287 RAX: 0000000000089669 RBX: 000000000004e106 RCX: ffffc9001af7c000 RDX: 0000000000100000 RSI: ffffffff822c5e1a RDI: 0000000000000007 RBP: 0000000000000001 R08: 0000000000000007 R09: 0000000000000000 R10: 0000000000006106 R11: 0000000000000000 R12: ffff88801dde51e0 R13: ffff88801dde51dc R14: 0000000000000000 R15: dffffc0000000000 __page_table_check_zero+0x2ea/0x5b0 mm/page_table_check.c:139 page_table_check_free include/linux/page_table_check.h:41 [inline] free_pages_prepare mm/page_alloc.c:1259 [inline] __free_frozen_pages+0x704/0xff0 mm/page_alloc.c:2721 discard_slab mm/slub.c:2716 [inline] __put_partials+0x16d/0x1c0 mm/slub.c:3185 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x4e/0x120 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x195/0x1e0 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x69/0x90 mm/kasan/common.c:329 kasan_slab_alloc include/linux/kasan.h:250 [inline] slab_post_alloc_hook mm/slub.c:4147 [inline] slab_alloc_node mm/slub.c:4196 [inline] __do_kmalloc_node mm/slub.c:4326 [inline] __kmalloc_noprof+0x1d4/0x510 mm/slub.c:4339 kmalloc_noprof include/linux/slab.h:909 [inline] kzalloc_noprof include/linux/slab.h:1039 [inline] kobject_get_path+0xd2/0x2a0 lib/kobject.c:161 kobject_uevent_env+0x289/0x1870 lib/kobject_uevent.c:545 device_del+0x623/0x9f0 drivers/base/core.c:3899 usb_disable_device+0x355/0x7d0 drivers/usb/core/message.c:1418 usb_disconnect+0x2e1/0x920 drivers/usb/core/hub.c:2316 hub_port_connect drivers/usb/core/hub.c:5371 [inline] hub_port_connect_change drivers/usb/core/hub.c:5671 [inline] port_event drivers/usb/core/hub.c:5831 [inline] hub_event+0x1c57/0x4fa0 drivers/usb/core/hub.c:5913 process_one_work+0x9cf/0x1b70 kernel/workqueue.c:3238 process_scheduled_works kernel/workqueue.c:3319 [inline] worker_thread+0x6c8/0xf10 kernel/workqueue.c:3400 kthread+0x3c2/0x780 kernel/kthread.c:464 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:153 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 bridge0: received packet on veth0_to_bridge with own address as source address (addr:52:e1:c7:fb:0d:ca, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:52:e1:c7:fb:0d:ca, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:52:e1:c7:fb:0d:ca, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:52:e1:c7:fb:0d:ca, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:52:e1:c7:fb:0d:ca, vlan:0) net_ratelimit: 23651 callbacks suppressed bridge0: received packet on veth0_to_bridge with own address as source address (addr:52:e1:c7:fb:0d:ca, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:52:e1:c7:fb:0d:ca, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:52:e1:c7:fb:0d:ca, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:52:e1:c7:fb:0d:ca, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:52:e1:c7:fb:0d:ca, vlan:0)