syzbot

bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:b6:70:76:3a:15:ce, vlan:0)
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P10674/2:b..l
rcu: 	(detected by 0, t=10502 jiffies, g=50421, q=5126 ncpus=1)
task:syz.4.1115      state:R  running task     stack:25112 pid:10674 tgid:10668 ppid:7887   task_flags:0x20400040 flags:0x00080003
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5295 [inline]
 __schedule+0xfee/0x60e0 kernel/sched/core.c:6907
 preempt_schedule_irq+0x50/0x90 kernel/sched/core.c:7234
 irqentry_exit+0x17b/0x670 kernel/entry/common.c:239
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0010:__kasan_check_byte+0xe/0x50 mm/kasan/common.c:573
Code: e9 47 2d 00 00 0f 1f 80 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1f 40 d6 41 54 49 89 f4 55 48 89 fd 53 <e8> dd 20 00 00 89 c3 84 c0 74 0b 89 d8 5b 5d 41 5c c3 cc cc cc cc
RSP: 0018:ffffc900055268e0 EFLAGS: 00000202
RAX: 0000000000000001 RBX: 0000000000000000 RCX: 0000000000000002
RDX: 0000000000000000 RSI: ffffffff81b7aaf1 RDI: ffffffff8e7e9220
RBP: ffffffff8e7e9220 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000200 R11: 000000000003cdf1 R12: ffffffff81b7aaf1
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
 kasan_check_byte include/linux/kasan.h:402 [inline]
 lock_acquire kernel/locking/lockdep.c:5842 [inline]
 lock_acquire+0x148/0x380 kernel/locking/lockdep.c:5825
 rcu_lock_acquire include/linux/rcupdate.h:312 [inline]
 rcu_read_lock include/linux/rcupdate.h:850 [inline]
 class_rcu_constructor include/linux/rcupdate.h:1193 [inline]
 unwind_next_frame+0xd1/0x1ea0 arch/x86/kernel/unwind_orc.c:495
 arch_stack_walk+0x94/0xf0 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0x8e/0xc0 kernel/stacktrace.c:122
 kasan_save_stack+0x30/0x50 mm/kasan/common.c:57
 kasan_record_aux_stack+0xa7/0xc0 mm/kasan/generic.c:556
 slab_free_hook mm/slub.c:2648 [inline]
 slab_free mm/slub.c:6124 [inline]
 kmem_cache_free+0x434/0x6a0 mm/slub.c:6254
 mempool_free+0xde/0x130 mm/mempool.c:711
 bio_put_percpu_cache block/bio.c:845 [inline]
 bio_put+0x34f/0x5b0 block/bio.c:864
 bio_endio+0x7a3/0x910 block/bio.c:1792
 blk_update_request+0x741/0x13a0 block/blk-mq.c:1016
 blk_mq_end_request+0x5b/0x420 block/blk-mq.c:1178
 blk_mq_complete_request block/blk-mq.c:1356 [inline]
 blk_mq_complete_request+0x8b/0xb0 block/blk-mq.c:1353
 nullb_complete_cmd drivers/block/null_blk/main.c:1412 [inline]
 null_handle_cmd drivers/block/null_blk/main.c:1464 [inline]
 null_queue_rq+0xb48/0xfb0 drivers/block/null_blk/main.c:1703
 null_queue_rqs+0xe9/0x2f0 drivers/block/null_blk/main.c:1717
 __blk_mq_flush_list block/blk-mq.c:2858 [inline]
 __blk_mq_flush_list+0x9a/0xc0 block/blk-mq.c:2854
 blk_mq_dispatch_queue_requests+0x184/0x7c0 block/blk-mq.c:2903
 blk_mq_flush_plug_list+0x1f2/0x600 block/blk-mq.c:2991
 blk_add_rq_to_plug+0x1ca/0x540 block/blk-mq.c:1417
 blk_mq_submit_bio+0x1bda/0x2bf0 block/blk-mq.c:3243
 __submit_bio+0x1e1/0x6c0 block/blk-core.c:635
 __submit_bio_noacct_mq block/blk-core.c:722 [inline]
 submit_bio_noacct_nocheck+0x562/0xc10 block/blk-core.c:753
 submit_bio_noacct+0xd17/0x2010 block/blk-core.c:884
 blk_crypto_submit_bio include/linux/blk-crypto.h:203 [inline]
 submit_bh_wbc+0x59c/0x770 fs/buffer.c:2821
 __block_write_full_folio+0x77f/0xee0 fs/buffer.c:1930
 block_write_full_folio+0x3b5/0x4e0 fs/buffer.c:2750
 blkdev_writepages+0xc7/0x150 block/fops.c:486
 do_writepages+0x278/0x600 mm/page-writeback.c:2554
 filemap_writeback+0x22d/0x2e0 mm/filemap.c:387
 filemap_fdatawrite_range mm/filemap.c:412 [inline]
 filemap_write_and_wait_range mm/filemap.c:684 [inline]
 filemap_write_and_wait_range+0xa6/0x130 mm/filemap.c:675
 filemap_write_and_wait include/linux/pagemap.h:65 [inline]
 sync_blockdev block/bdev.c:276 [inline]
 sync_blockdev block/bdev.c:272 [inline]
 bdev_release+0x4d3/0x6d0 block/bdev.c:1142
 blkdev_release+0x15/0x20 block/fops.c:705
 __fput+0x3ff/0xb40 fs/file_table.c:469
 task_work_run+0x150/0x240 kernel/task_work.c:233
 get_signal+0x1bd/0x21e0 kernel/signal.c:2807
 arch_do_signal_or_restart+0x91/0x770 arch/x86/kernel/signal.c:337
 __exit_to_user_mode_loop kernel/entry/common.c:64 [inline]
 exit_to_user_mode_loop+0x86/0x4a0 kernel/entry/common.c:98
 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:226 [inline]
 syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:256 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:325 [inline]
 do_syscall_64+0x668/0xf80 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f46cbf9c799
RSP: 002b:00007f46ccde9028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: 0000000000000000 RBX: 00007f46cc216180 RCX: 00007f46cbf9c799
RDX: 0000000000000000 RSI: 000000000000127f RDI: 0000000000000004
RBP: 00007f46cc032bd9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f46cc216218 R14: 00007f46cc216180 R15: 00007ffdce6bd258
 </TASK>
net_ratelimit: 8143 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:0c, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)
bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:b6:70:76:3a:15:ce, vlan:0)
bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, 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:b6:70:76:3a:15:ce, vlan:0)
net_ratelimit: 9382 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 veth0_to_bridge with own address as source address (addr:b6:70:76:3a:15:ce, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:b6:70:76:3a:15:ce, 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 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:0c, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, 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 bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:b6:70:76:3a:15:ce, vlan:0)