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): P6088/2:b..l rcu: (detected by 0, t=10503 jiffies, g=11577, q=6217 ncpus=2) task:syz.2.32 state:R running task stack:24720 pid:6088 tgid:6088 ppid:5867 task_flags:0x2040044c 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:lock_release+0x19c/0x2f0 kernel/locking/lockdep.c:5893 Code: 00 00 41 f7 c5 00 02 00 00 74 01 fb 48 8b 44 24 10 65 48 2b 05 dd 64 3e 12 0f 85 58 01 00 00 48 83 c4 18 5b 41 5c 41 5d 41 5e <41> 5f c3 cc cc cc cc 65 8b 05 ea 64 3e 12 83 f8 07 0f 87 12 01 00 RSP: 0018:ffffc9000459e968 EFLAGS: 00000286 RAX: 0000000000000000 RBX: ffffc9000459fce8 RCX: ffffc900045a0001 RDX: 0000000000000000 RSI: ffffffff8c162c00 RDI: 0000000000000000 RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000000 R10: ffffc9000459e9e8 R11: 0000000000007b73 R12: ffffc9000459ea38 R13: ffffc9000459e9e8 R14: ffffc9000459fce8 R15: ffffc9000459ea1c rcu_lock_release include/linux/rcupdate.h:341 [inline] rcu_read_unlock include/linux/rcupdate.h:871 [inline] class_rcu_destructor include/linux/rcupdate.h:1155 [inline] unwind_next_frame+0x3f9/0x20a0 arch/x86/kernel/unwind_orc.c:479 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 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+0xff/0x750 mm/mempool.c:576 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+0x9a/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 exit_task_work include/linux/task_work.h:40 [inline] do_exit+0x86f/0x2bf0 kernel/exit.c:961 do_group_exit+0xd3/0x2a0 kernel/exit.c:1102 get_signal+0x2673/0x26d0 kernel/signal.c:3034 arch_do_signal_or_restart+0x8f/0x790 arch/x86/kernel/signal.c:337 exit_to_user_mode_loop kernel/entry/common.c:40 [inline] exit_to_user_mode_prepare include/linux/irq-entry-common.h:225 [inline] irqentry_exit_to_user_mode+0x12a/0x270 kernel/entry/common.c:73 asm_sysvec_reschedule_ipi+0x1a/0x20 arch/x86/include/asm/idtentry.h:707 RIP: 0033:0x7fb7eba6802d RSP: 002b:00007ffc1473e110 EFLAGS: 00000246 RAX: 00007fb7eb6bb7c0 RBX: 00007fb7eb6b5938 RCX: ffffffff85616c32 RDX: ffffffff85616c32 RSI: ffffffff85616c32 RDI: 00007fb7eb6c16f0 RBP: 00007fb7eb6b2e50 R08: 00007fb7eb6ba298 R09: 00007fb7ebda2000 R10: 00007fb7eb5ff008 R11: 0000000000000004 R12: 00007fb7eb6b2e48 R13: 000000000000001b R14: 00007ffc1473e268 R15: 00007fb7eb5ff008 net_ratelimit: 18372 callbacks suppressed bridge0: received packet on veth0_to_bridge with own address as source address (addr:36:da:60:fc:c7:ef, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:36:da:60:fc:c7:ef, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:36:da:60:fc:c7:ef, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:36:da:60:fc:c7:ef, 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: 22296 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:36:da:60:fc:c7:ef, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:36:da:60:fc:c7:ef, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:36:da:60:fc:c7:ef, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:36:da:60:fc:c7:ef, vlan:0)