bridge0: received packet on veth0_to_bridge with own address as source address (addr:fe:32:56:83:20:d7, vlan:0) rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P26879/1:b..l rcu: (detected by 0, t=10503 jiffies, g=198577, q=986 ncpus=2) task:syz.2.5846 state:R running task stack:25288 pid:26879 tgid:26878 ppid:16748 task_flags:0x400140 flags:0x00080003 Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x1798/0x4cc0 kernel/sched/core.c:6929 preempt_schedule_irq+0xb5/0x150 kernel/sched/core.c:7256 irqentry_exit+0x6f/0x90 kernel/entry/common.c:211 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697 RIP: 0010:lock_acquire+0x175/0x360 kernel/locking/lockdep.c:5872 Code: 00 00 00 00 9c 8f 44 24 30 f7 44 24 30 00 02 00 00 0f 85 cd 00 00 00 f7 44 24 08 00 02 00 00 74 01 fb 65 48 8b 05 5b fd d0 10 <48> 3b 44 24 58 0f 85 f2 00 00 00 48 83 c4 60 5b 41 5c 41 5d 41 5e RSP: 0018:ffffc9000ae6edb8 EFLAGS: 00000206 RAX: bbc6e7c8a3091e00 RBX: 0000000000000000 RCX: bbc6e7c8a3091e00 RDX: 0000000000000000 RSI: ffffffff8d8f5134 RDI: ffffffff8bbf08e0 RBP: ffffffff81738c45 R08: 0000000000000000 R09: ffffffff81738c45 R10: ffffc9000ae6ef78 R11: ffffffff81ac2e10 R12: 0000000000000002 R13: ffffffff8df3d6e0 R14: 0000000000000000 R15: 0000000000000246 rcu_lock_acquire include/linux/rcupdate.h:331 [inline] rcu_read_lock include/linux/rcupdate.h:867 [inline] class_rcu_constructor include/linux/rcupdate.h:1195 [inline] unwind_next_frame+0xc2/0x2390 arch/x86/kernel/unwind_orc.c:479 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:311 reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1394 [inline] __free_frozen_pages+0xbc4/0xd30 mm/page_alloc.c:2901 discard_slab mm/slub.c:3330 [inline] __put_partials+0x146/0x170 mm/slub.c:3876 put_cpu_partial+0x1f2/0x2e0 mm/slub.c:3951 __slab_free+0x2b9/0x390 mm/slub.c:5929 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:352 kasan_slab_alloc include/linux/kasan.h:252 [inline] slab_post_alloc_hook mm/slub.c:4978 [inline] slab_alloc_node mm/slub.c:5288 [inline] kmem_cache_alloc_noprof+0x367/0x6e0 mm/slub.c:5295 __kernfs_new_node+0xd7/0x7e0 fs/kernfs/dir.c:637 kernfs_new_node+0x102/0x210 fs/kernfs/dir.c:713 __kernfs_create_file+0x4b/0x2e0 fs/kernfs/file.c:1057 sysfs_add_file_mode_ns+0x238/0x300 fs/sysfs/file.c:313 create_files fs/sysfs/group.c:76 [inline] internal_create_group+0x66d/0x1110 fs/sysfs/group.c:183 internal_create_groups fs/sysfs/group.c:223 [inline] sysfs_create_groups+0x59/0x120 fs/sysfs/group.c:249 create_dir lib/kobject.c:78 [inline] kobject_add_internal+0x5e6/0xb40 lib/kobject.c:240 kobject_add_varg lib/kobject.c:374 [inline] kobject_add+0x155/0x220 lib/kobject.c:426 md_alloc+0x9e2/0xee0 drivers/md/md.c:6197 md_alloc_and_put+0x1a/0x1f0 drivers/md/md.c:6227 blk_probe_dev block/genhd.c:884 [inline] blk_request_module+0x27d/0x2a0 block/genhd.c:-1 blkdev_get_no_open+0x3f/0xe0 block/bdev.c:825 bdev_file_open_by_dev+0xa0/0x240 block/bdev.c:1046 swsusp_check+0x56/0x440 kernel/power/swap.c:1581 software_resume+0x51/0x410 kernel/power/hibernate.c:1047 resume_store+0x2f1/0x460 kernel/power/hibernate.c:1331 kernfs_fop_write_iter+0x3af/0x540 fs/kernfs/file.c:352 new_sync_write fs/read_write.c:593 [inline] vfs_write+0x5c9/0xb30 fs/read_write.c:686 ksys_write+0x145/0x250 fs/read_write.c:738 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: 0033:0x7f05ba38f749 RSP: 002b:00007f05b85f6038 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f05ba5e5fa0 RCX: 00007f05ba38f749 RDX: 0000000000000012 RSI: 0000200000000180 RDI: 0000000000000008 RBP: 00007f05ba413f91 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f05ba5e6038 R14: 00007f05ba5e5fa0 R15: 00007f05ba70fa28 bridge0: received packet on veth0_to_bridge with own address as source address (addr:fe:32:56:83:20:d7, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:fe:32:56:83:20:d7, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:fe:32:56:83:20:d7, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:fe:32:56:83:20:d7, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:fe:32:56:83:20:d7, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:fe:32:56:83:20:d7, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:fe:32:56:83:20:d7, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:fe:32:56:83:20:d7, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:fe:32:56:83:20:d7, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:fe:32:56:83:20:d7, vlan:0)