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): P28395/1:b..l rcu: (detected by 1, t=10503 jiffies, g=175833, q=385 ncpus=2) task:syz.8.5934 state:R running task stack:21912 pid:28395 tgid:28395 ppid:19989 task_flags:0x40064c flags:0x00004002 Call Trace: context_switch kernel/sched/core.c:5314 [inline] __schedule+0x16f5/0x4d00 kernel/sched/core.c:6697 preempt_schedule_irq+0xb5/0x150 kernel/sched/core.c:7020 irqentry_exit+0x6f/0x90 kernel/entry/common.c:196 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:lock_acquire+0x175/0x360 kernel/locking/lockdep.c:5875 Code: 00 00 00 00 9c 8f 44 24 30 f7 44 24 30 00 02 00 00 0f 85 cd 00 00 00 f7 44 24 08 00 02 00 00 74 01 fb 65 48 8b 05 ab 4b 4a 11 <48> 3b 44 24 58 0f 85 f2 00 00 00 48 83 c4 60 5b 41 5c 41 5d 41 5e RSP: 0018:ffffc9000b1b6d18 EFLAGS: 00000206 RAX: 8ff82b3fec031b00 RBX: 0000000000000000 RCX: 8ff82b3fec031b00 RDX: 0000000000000001 RSI: ffffffff8de772bb RDI: ffffffff8c04c9c0 RBP: ffffffff8172eea5 R08: 0000000000000000 R09: ffffffff8172eea5 R10: ffffc9000b1b6ed8 R11: ffffffff81acc8f0 R12: 0000000000000002 R13: ffffffff8e53c420 R14: 0000000000000000 R15: 0000000000000246 rcu_lock_acquire include/linux/rcupdate.h:331 [inline] rcu_read_lock include/linux/rcupdate.h:841 [inline] class_rcu_constructor include/linux/rcupdate.h:1155 [inline] unwind_next_frame+0xc2/0x2390 arch/x86/kernel/unwind_orc.c:479 arch_stack_walk+0x11c/0x150 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x9c/0xe0 kernel/stacktrace.c:122 save_stack+0xf5/0x1f0 mm/page_owner.c:156 __reset_page_owner+0x71/0x1f0 mm/page_owner.c:308 reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1392 [inline] free_unref_folios+0xd77/0x1570 mm/page_alloc.c:2949 folios_put_refs+0x559/0x640 mm/swap.c:992 folio_batch_release include/linux/pagevec.h:101 [inline] shmem_undo_range+0x49e/0x14b0 mm/shmem.c:1125 shmem_truncate_range mm/shmem.c:1237 [inline] shmem_evict_inode+0x272/0xa70 mm/shmem.c:1365 evict+0x501/0x9c0 fs/inode.c:810 __dentry_kill+0x209/0x660 fs/dcache.c:669 dput+0x19f/0x2b0 fs/dcache.c:911 __fput+0x68e/0xa70 fs/file_table.c:476 task_work_run+0x1d1/0x260 kernel/task_work.c:227 exit_task_work include/linux/task_work.h:40 [inline] do_exit+0x6b5/0x2300 kernel/exit.c:959 do_group_exit+0x21c/0x2d0 kernel/exit.c:1100 get_signal+0x1286/0x1340 kernel/signal.c:3034 arch_do_signal_or_restart+0x9a/0x750 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:208 [inline] irqentry_exit_to_user_mode+0x81/0x120 kernel/entry/common.c:73 exc_page_fault+0x9f/0xf0 arch/x86/mm/fault.c:1535 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623 RIP: 0033:0x7f118658e931 RSP: 002b:fffffffffffffc70 EFLAGS: 00010217 RAX: 0000000000000000 RBX: 00007f11867b5fa0 RCX: 00007f118658e929 RDX: 0000000000000000 RSI: fffffffffffffc70 RDI: 0000000001022000 RBP: 00007f1186610b39 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f11867b5fa0 R15: 00007ffcf8dc25b8 bridge0: received packet on veth0_to_bridge with own address as source address (addr:1a:02:fe:1e:07:d2, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:1a:02:fe:1e:07:d2, 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:1a:02:fe:1e:07:d2, vlan:0) net_ratelimit: 17653 callbacks suppressed bridge0: received packet on veth0_to_bridge with own address as source address (addr:1a:02:fe:1e:07:d2, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:1a:02:fe:1e:07:d2, 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:1a:02:fe:1e:07:d2, vlan:0)