bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:ee:f7:1c:32:6f, vlan:0) rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P6214/1:b..l rcu: (detected by 0, t=10503 jiffies, g=15065, q=4570 ncpus=2) task:syz.3.57 state:R running task stack:24424 pid:6214 tgid:6206 ppid:5858 task_flags:0x20400140 flags:0x00004006 Call Trace: context_switch kernel/sched/core.c:5357 [inline] __schedule+0x1190/0x5de0 kernel/sched/core.c:6961 preempt_schedule_irq+0x51/0x90 kernel/sched/core.c:7288 irqentry_exit+0x36/0x90 kernel/entry/common.c:197 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:arch_stack_walk+0x85/0x100 arch/x86/kernel/stacktrace.c:27 Code: c0 74 50 49 8b 8e 98 00 00 00 4c 89 f2 4c 89 fe 48 89 df e8 5d 20 09 00 8b 95 70 ff ff ff 85 d2 75 21 eb 2f 4c 89 ef 41 ff d4 <0f> 1f 00 84 c0 74 22 48 89 df e8 8c ff 08 00 8b 85 70 ff ff ff 85 RSP: 0018:ffffc9000b376ac8 EFLAGS: 00000292 RAX: 0000000000000001 RBX: ffffc9000b376ac8 RCX: ffffc9000b376a1c RDX: 1ffff9200166ed95 RSI: ffffffff81f4541a RDI: ffffc9000b376b94 RBP: ffffc9000b376b58 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 000000000003b941 R12: ffffffff81a672b0 R13: ffffc9000b376b88 R14: 0000000000000000 R15: ffff8880287c5a00 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 slab_free_hook mm/slub.c:2378 [inline] slab_free mm/slub.c:4680 [inline] kmem_cache_free+0x15a/0x4d0 mm/slub.c:4782 mempool_free+0x102/0x710 mm/mempool.c:580 bio_put_percpu_cache block/bio.c:801 [inline] bio_put+0x355/0x5b0 block/bio.c:820 bio_endio+0x70d/0x850 block/bio.c:1651 blk_update_request+0x93e/0x15f0 block/blk-mq.c:989 blk_mq_end_request+0x5b/0x630 block/blk-mq.c:1151 blk_mq_complete_request block/blk-mq.c:1329 [inline] blk_mq_complete_request+0x8b/0xb0 block/blk-mq.c:1326 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:2828 [inline] __blk_mq_flush_list+0x97/0xc0 block/blk-mq.c:2824 blk_mq_dispatch_queue_requests+0x184/0x7b0 block/blk-mq.c:2873 blk_mq_flush_plug_list+0x1f2/0x600 block/blk-mq.c:2961 blk_add_rq_to_plug+0x1ca/0x540 block/blk-mq.c:1390 blk_mq_submit_bio+0x1a1c/0x2880 block/blk-mq.c:3212 __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+0xb49/0x1eb0 block/blk-core.c:874 __block_write_full_folio+0x735/0xe00 fs/buffer.c:1933 block_write_full_folio+0x341/0x400 fs/buffer.c:2753 blkdev_writepages+0xb8/0x140 block/fops.c:483 do_writepages+0x27a/0x600 mm/page-writeback.c:2634 filemap_fdatawrite_wbc mm/filemap.c:386 [inline] filemap_fdatawrite_wbc+0x104/0x160 mm/filemap.c:376 __filemap_fdatawrite_range+0xb9/0x100 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:699 __fput+0x3ff/0xb70 fs/file_table.c:468 task_work_run+0x14d/0x240 kernel/task_work.c:227 get_signal+0x1d1/0x26d0 kernel/signal.c:2807 arch_do_signal_or_restart+0x8f/0x790 arch/x86/kernel/signal.c:337 exit_to_user_mode_loop+0x84/0x110 kernel/entry/common.c:40 exit_to_user_mode_prepare include/linux/irq-entry-common.h:225 [inline] syscall_exit_to_user_mode_work include/linux/entry-common.h:175 [inline] syscall_exit_to_user_mode include/linux/entry-common.h:210 [inline] do_syscall_64+0x3f6/0x490 arch/x86/entry/syscall_64.c:100 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f9f23f8eb69 RSP: 002b:00007f9f24d3e038 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: 0000000000c00000 RBX: 00007f9f241b6080 RCX: 00007f9f23f8eb69 RDX: 0000000080000000 RSI: 0000200000000000 RDI: 0000000000000008 RBP: 00007f9f24011df1 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f9f241b6080 R15: 00007ffd71e55dc8 bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:ee:f7:1c:32:6f, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:ee:f7:1c:32:6f, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:ee:f7:1c:32:6f, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:ee:f7:1c:32:6f, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:ee:f7:1c:32:6f, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:ee:f7:1c:32:6f, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:ee:f7:1c:32:6f, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:ee:f7:1c:32:6f, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:ee:f7:1c:32:6f, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:ee:f7:1c:32:6f, vlan:0)