syzbot

bridge0: received packet on veth0_to_bridge with own address as source address (addr:96:60:84:46:b4:3a, vlan:0)
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P7957/2:b..l
rcu: 	(detected by 0, t=10503 jiffies, g=29133, q=2138 ncpus=2)
task:syz.0.555       state:R  running task     stack:24392 pid:7957  tgid:7957  ppid:5835   task_flags:0x2040044c flags:0x00080003
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5298 [inline]
 __schedule+0x15dd/0x52d0 kernel/sched/core.c:6911
 preempt_schedule_irq+0x4d/0xa0 kernel/sched/core.c:7238
 irqentry_exit+0x599/0x620 kernel/entry/common.c:239
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0010:memset_orig+0x75/0xb0 arch/x86/lib/memset_64.S:92
Code: 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 75 f6 4c
RSP: 0018:ffffc9000d32e750 EFLAGS: 00000246
RAX: 0000000000000000 RBX: ffffc9000d32e860 RCX: 0000000000000000
RDX: 0000000000000010 RSI: 0000000000000000 RDI: ffffc9000d32e880
RBP: dffffc0000000000 R08: ffffc9000d32e887 R09: 0000000000000000
R10: ffffc9000d32e878 R11: fffff52001a65d11 R12: ffffc9000d32e878
R13: 1ffff92001a65d07 R14: ffffc9000d32e828 R15: ffffc9000d32e870
 unwind_next_frame+0xeae/0x23c0 arch/x86/kernel/unwind_orc.c:607
 arch_stack_walk+0x11b/0x150 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0xa9/0x100 kernel/stacktrace.c:122
 kasan_save_stack mm/kasan/common.c:57 [inline]
 kasan_save_track+0x3e/0x80 mm/kasan/common.c:78
 poison_kmalloc_redzone mm/kasan/common.c:398 [inline]
 __kasan_kmalloc+0x93/0xb0 mm/kasan/common.c:415
 kasan_kmalloc include/linux/kasan.h:263 [inline]
 __kmalloc_cache_noprof+0x31c/0x660 mm/slub.c:5380
 kmalloc_noprof include/linux/slab.h:950 [inline]
 slab_free_hook mm/slub.c:2637 [inline]
 slab_free mm/slub.c:6165 [inline]
 kmem_cache_free+0x15b/0x630 mm/slub.c:6295
 mempool_free+0xec/0x130 mm/mempool.c:711
 blk_update_request+0x57e/0xe60 block/blk-mq.c:1016
 blk_mq_end_request+0x3e/0x70 block/blk-mq.c:1178
 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+0xbfe/0xe30 drivers/block/null_blk/main.c:1703
 null_queue_rqs+0x123/0x270 drivers/block/null_blk/main.c:1717
 __blk_mq_flush_list block/blk-mq.c:2858 [inline]
 blk_mq_dispatch_queue_requests+0x417/0x800 block/blk-mq.c:2903
 blk_mq_flush_plug_list+0x456/0x570 block/blk-mq.c:2991
 blk_add_rq_to_plug+0x175/0x450 block/blk-mq.c:1417
 blk_mq_submit_bio+0xef8/0x2810 block/blk-mq.c:3243
 __submit_bio+0x1c0/0x580 block/blk-core.c:635
 __submit_bio_noacct_mq block/blk-core.c:722 [inline]
 submit_bio_noacct_nocheck+0x2f4/0xa70 block/blk-core.c:753
 __block_write_full_folio+0x810/0xe10 fs/buffer.c:1930
 blkdev_writepages+0xef/0x1b0 block/fops.c:486
 do_writepages+0x32e/0x550 mm/page-writeback.c:2554
 filemap_writeback mm/filemap.c:387 [inline]
 filemap_fdatawrite_range mm/filemap.c:412 [inline]
 filemap_write_and_wait_range+0x335/0x3f0 mm/filemap.c:684
 filemap_write_and_wait include/linux/pagemap.h:65 [inline]
 sync_blockdev block/bdev.c:276 [inline]
 bdev_release+0x192/0x650 block/bdev.c:1142
 blkdev_release+0x15/0x20 block/fops.c:705
 __fput+0x44f/0xa70 fs/file_table.c:469
 task_work_run+0x1d9/0x270 kernel/task_work.c:233
 exit_task_work include/linux/task_work.h:40 [inline]
 do_exit+0x70f/0x23c0 kernel/exit.c:976
 do_group_exit+0x21b/0x2d0 kernel/exit.c:1118
 get_signal+0x1284/0x1330 kernel/signal.c:3034
 arch_do_signal_or_restart+0xbc/0x830 arch/x86/kernel/signal.c:337
 __exit_to_user_mode_loop kernel/entry/common.c:64 [inline]
 exit_to_user_mode_loop kernel/entry/common.c:98 [inline]
 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:226 [inline]
 irqentry_exit_to_user_mode_prepare include/linux/irq-entry-common.h:270 [inline]
 irqentry_exit_to_user_mode include/linux/irq-entry-common.h:339 [inline]
 irqentry_exit+0x176/0x620 kernel/entry/common.c:219
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0033:0x7ff8dfe6cd02
RSP: 002b:00007ff8e033f8c0 EFLAGS: 00000202
RAX: 00007ff8df8ed030 RBX: 00007ff8df8ecec8 RCX: ffffffff823c4bf0
RDX: ffffffff823c4bf0 RSI: 00007ff8df8ed030 RDI: 00007ff8df8ece68
RBP: 00007ff8df8ec950 R08: 00007ff8e0200000 R09: 00007ff8e0216128
R10: 0000000000000007 R11: 0000000000000017 R12: 00007ff8df8ed388
R13: 0000000000000015 R14: 0000000000000147 R15: 0000000000000007
 </TASK>
bridge0: received packet on veth0_to_bridge with own address as source address (addr:96:60:84:46:b4:3a, 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:96:60:84:46:b4:3a, 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:96:60:84:46:b4:3a, vlan:0)
net_ratelimit: 21389 callbacks suppressed
bridge0: received packet on veth0_to_bridge with own address as source address (addr:96:60:84:46:b4:3a, 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 veth0_to_bridge with own address as source address (addr:96:60:84:46:b4:3a, vlan:0)
bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0)