bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P17335/2:b..l rcu: (detected by 0, t=10503 jiffies, g=102041, q=1027 ncpus=2) task:syz.0.2233 state:R running task stack:24568 pid:17335 tgid:17335 ppid:5845 task_flags:0x2040004c flags:0x00004002 Call Trace: context_switch kernel/sched/core.c:5397 [inline] __schedule+0x116a/0x5de0 kernel/sched/core.c:6786 preempt_schedule_irq+0x51/0x90 kernel/sched/core.c:7109 irqentry_exit+0x36/0x90 kernel/entry/common.c:307 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:unwind_next_frame+0x50c/0x20a0 arch/x86/kernel/unwind_orc.c:505 Code: e8 19 f1 ff ff 48 89 c1 48 85 c0 0f 84 05 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 8d 79 05 4c 89 fa 48 c1 ea 03 0f b6 04 02 <4c> 89 fa 83 e2 07 38 d0 7f 08 84 c0 0f 85 32 14 00 00 0f b6 41 05 RSP: 0018:ffffc9000b316b58 EFLAGS: 00000a07 RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffffff917852c8 RDX: 1ffffffff22f0a59 RSI: 0000000000000000 RDI: ffffffff90e12d10 RBP: ffffc9000b316c10 R08: ffffffff917852ce R09: 0000000000000000 R10: 0000000000000000 R11: 000000000003b2e2 R12: ffffc9000b316c18 R13: ffffc9000b316bc8 R14: ffffc9000b316bfd R15: ffffffff917852cd arch_stack_walk+0x94/0x100 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x8e/0xc0 kernel/stacktrace.c:122 kasan_save_stack+0x33/0x60 mm/kasan/common.c:47 kasan_record_aux_stack+0xa7/0xc0 mm/kasan/generic.c:548 __call_rcu_common.constprop.0+0xa5/0xa10 kernel/rcu/tree.c:3094 slab_free_hook mm/slub.c:2345 [inline] slab_free mm/slub.c:4643 [inline] kmem_cache_free+0x16d/0x4d0 mm/slub.c:4745 mempool_free+0xe7/0x3b0 mm/mempool.c:548 bio_put_percpu_cache block/bio.c:801 [inline] bio_put+0x355/0x5b0 block/bio.c:820 bio_endio+0x70a/0x850 block/bio.c:1645 blk_update_request+0x96b/0x1630 block/blk-mq.c:987 blk_mq_end_request+0x5b/0x630 block/blk-mq.c:1149 blk_mq_complete_request block/blk-mq.c:1327 [inline] blk_mq_complete_request+0x8b/0xb0 block/blk-mq.c:1324 nullb_complete_cmd drivers/block/null_blk/main.c:1402 [inline] null_handle_cmd drivers/block/null_blk/main.c:1454 [inline] null_queue_rq+0xb69/0xfd0 drivers/block/null_blk/main.c:1693 null_queue_rqs+0xe9/0x2f0 drivers/block/null_blk/main.c:1707 __blk_mq_flush_list block/blk-mq.c:2826 [inline] __blk_mq_flush_list+0x97/0xc0 block/blk-mq.c:2822 blk_mq_dispatch_queue_requests+0x184/0x7b0 block/blk-mq.c:2871 blk_mq_flush_plug_list+0x1f2/0x600 block/blk-mq.c:2959 blk_add_rq_to_plug+0x1ca/0x540 block/blk-mq.c:1388 blk_mq_submit_bio+0x18d5/0x26a0 block/blk-mq.c:3208 __submit_bio+0x3cf/0x690 block/blk-core.c:635 __submit_bio_noacct_mq block/blk-core.c:722 [inline] submit_bio_noacct_nocheck+0x660/0xd30 block/blk-core.c:751 submit_bio_noacct+0x50d/0x1eb0 block/blk-core.c:874 __block_write_full_folio+0x735/0xe00 fs/buffer.c:1939 block_write_full_folio+0x341/0x400 fs/buffer.c:2760 blkdev_writepages+0xb8/0x140 block/fops.c:483 do_writepages+0x27a/0x600 mm/page-writeback.c:2636 filemap_fdatawrite_wbc mm/filemap.c:386 [inline] filemap_fdatawrite_wbc+0x104/0x160 mm/filemap.c:376 __filemap_fdatawrite_range+0xb2/0xf0 mm/filemap.c:419 filemap_write_and_wait_range mm/filemap.c:691 [inline] filemap_write_and_wait_range+0xa3/0x130 mm/filemap.c:682 filemap_write_and_wait include/linux/pagemap.h:68 [inline] sync_blockdev block/bdev.c:260 [inline] sync_blockdev block/bdev.c:256 [inline] bdev_release+0x4d3/0x6d0 block/bdev.c:1126 blkdev_release+0x15/0x20 block/fops.c:684 __fput+0x402/0xb70 fs/file_table.c:465 task_work_run+0x150/0x240 kernel/task_work.c:227 exit_task_work include/linux/task_work.h:40 [inline] do_exit+0x86c/0x2bd0 kernel/exit.c:964 __do_sys_exit kernel/exit.c:1072 [inline] __se_sys_exit kernel/exit.c:1070 [inline] __x64_sys_exit+0x42/0x50 kernel/exit.c:1070 x64_sys_call+0xea3/0x1730 arch/x86/include/generated/asm/syscalls_64.h:61 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xcd/0x490 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fc67df8e9a9 RSP: 002b:00007fc67ed8cfe8 EFLAGS: 00000246 ORIG_RAX: 000000000000003c RAX: ffffffffffffffda RBX: 00007fc67e1b5fa0 RCX: 00007fc67df8e9a9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 00007fc67e010d69 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007fc67e1b5fa0 R15: 00007ffe570b90a8 net_ratelimit: 11833 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:ae:91:e0:5c:35:f2, 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:ae:91:e0:5c:35:f2, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) net_ratelimit: 13629 callbacks suppressed bridge0: received packet on veth0_to_bridge with own address as source address (addr:ae:91:e0:5c:35:f2, 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:ae:91:e0:5c:35:f2, 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:ae:91:e0:5c:35:f2, vlan:0)