bridge0: received packet on veth1_to_bridge with own address as source address (addr:96:51:12:4e:4c:6f, vlan:0) rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P21083/1:b..l rcu: (detected by 1, t=10503 jiffies, g=116917, q=2398 ncpus=2) task:syz.7.4646 state:R running task stack:27736 pid:21083 tgid:21082 ppid:13861 task_flags:0x400040 flags:0x00004006 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:memset_orig+0x72/0xb0 arch/x86/lib/memset_64.S:91 Code: 47 28 48 89 47 30 48 89 47 38 48 8d 7f 40 75 d8 0f 1f 84 00 00 00 00 00 89 d1 83 e1 38 74 14 c1 e9 03 66 0f 1f 44 00 00 ff c9 <48> 89 07 48 8d 7f 08 75 f5 83 e2 07 74 0a ff ca 88 07 48 8d 7f 01 RSP: 0018:ffffc9000c2af3b0 EFLAGS: 00000246 RAX: 0000000000000000 RBX: ffffc9000c2af4c0 RCX: 0000000000000000 RDX: 0000000000000010 RSI: 0000000000000000 RDI: ffffc9000c2af4e0 RBP: dffffc0000000000 R08: ffffc9000c2af4e7 R09: 0000000000000000 R10: ffffc9000c2af4d8 R11: fffff52001855e9d R12: ffffc9000c2afa90 R13: ffffc9000c2af4d8 R14: ffffc9000c2af488 R15: ffffc9000c2af4d0 unwind_next_frame+0xc98/0x2390 arch/x86/kernel/unwind_orc.c:592 arch_stack_walk+0x11c/0x150 arch/x86/kernel/stacktrace.c:25 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] __kmalloc_cache_noprof+0x1aa/0x3a0 mm/slub.c:4391 kmalloc_noprof include/linux/slab.h:909 [inline] kzalloc_noprof include/linux/slab.h:1043 [inline] kobject_uevent_env+0x27c/0x8c0 lib/kobject_uevent.c:540 __kobject_del+0xd2/0x300 lib/kobject.c:601 kobject_cleanup lib/kobject.c:680 [inline] kobject_release lib/kobject.c:720 [inline] kref_put include/linux/kref.h:65 [inline] kobject_put+0x243/0x480 lib/kobject.c:737 bus_remove_driver+0x245/0x2f0 drivers/base/bus.c:749 usb_gadget_register_driver_owner+0x223/0x270 drivers/usb/gadget/udc/core.c:1722 raw_ioctl_run drivers/usb/gadget/legacy/raw_gadget.c:595 [inline] raw_ioctl+0x149a/0x3c90 drivers/usb/gadget/legacy/raw_gadget.c:1306 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:598 [inline] __se_sys_ioctl+0xf9/0x170 fs/ioctl.c:584 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: 0033:0x7f80d038e7eb RSP: 002b:00007f80d11a2f10 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f80d038e7eb RDX: 0000000000000000 RSI: 0000000000005501 RDI: 0000000000000003 RBP: 00007f80d11a3fe0 R08: 0000000000000000 R09: 00372e6364755f79 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f80d11a2fb0 R14: 00002000000003c0 R15: 00007f80d06e0320 bridge0: received packet on veth1_to_bridge with own address as source address (addr:96:51:12:4e:4c:6f, vlan:0) bridge0: received packet on veth1_to_bridge with own address as source address (addr:96:51:12:4e:4c:6f, vlan:0) bridge0: received packet on veth1_to_bridge with own address as source address (addr:96:51:12:4e:4c:6f, vlan:0) bridge0: received packet on veth1_to_bridge with own address as source address (addr:96:51:12:4e:4c:6f, vlan:0) bridge0: received packet on veth1_to_bridge with own address as source address (addr:96:51:12:4e:4c:6f, vlan:0) net_ratelimit: 32239 callbacks suppressed bridge0: received packet on veth1_to_bridge with own address as source address (addr:96:51:12:4e:4c:6f, vlan:0) bridge0: received packet on veth1_to_bridge with own address as source address (addr:96:51:12:4e:4c:6f, vlan:0) bridge0: received packet on veth1_to_bridge with own address as source address (addr:96:51:12:4e:4c:6f, vlan:0) bridge0: received packet on veth1_to_bridge with own address as source address (addr:96:51:12:4e:4c:6f, vlan:0) bridge0: received packet on veth1_to_bridge with own address as source address (addr:96:51:12:4e:4c:6f, vlan:0)