bridge0: received packet on veth0_to_bridge with own address as source address (addr:ce:77:fa:af:af:7b, vlan:0) rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P17768/1:b..l rcu: (detected by 0, t=10503 jiffies, g=116849, q=8831 ncpus=2) task:syz.3.2929 state:R running task stack:26248 pid:17768 tgid:17749 ppid:5845 task_flags:0x40054c flags:0x00080001 Call Trace: context_switch kernel/sched/core.c:5260 [inline] __schedule+0x14ef/0x4fb0 kernel/sched/core.c:6867 preempt_schedule_irq+0x4d/0xa0 kernel/sched/core.c:7194 irqentry_exit+0x597/0x620 kernel/entry/common.c:216 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697 RIP: 0010:trace_lock_acquire include/trace/events/lock.h:24 [inline] RIP: 0010:lock_acquire+0x58/0x330 kernel/locking/lockdep.c:5831 Code: 8b 05 fc 6f 30 11 48 89 44 24 58 0f 1f 44 00 00 65 8b 05 ff 6f 30 11 83 f8 08 0f 83 83 01 00 00 89 c0 48 0f a3 05 28 bf 2f 0e <73> 0d e8 51 25 09 00 84 c0 0f 84 ca 01 00 00 83 3d 42 ef 2f 0e 00 RSP: 0018:ffffc9000551ecd8 EFLAGS: 00000297 RAX: 0000000000000001 RBX: 0000000000000000 RCX: 0000000000000002 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff8e35a360 RBP: ffffffff8174c0e5 R08: 0000000000000000 R09: 0000000000000000 R10: ffffc9000551ee98 R11: ffffffff81ae5bd0 R12: 0000000000000002 R13: ffffffff8e35a360 R14: 0000000000000000 R15: 0000000000000000 rcu_lock_acquire include/linux/rcupdate.h:331 [inline] rcu_read_lock include/linux/rcupdate.h:867 [inline] class_rcu_constructor include/linux/rcupdate.h:1195 [inline] unwind_next_frame+0xc2/0x23c0 arch/x86/kernel/unwind_orc.c:495 arch_stack_walk+0x11b/0x150 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0xa9/0x100 kernel/stacktrace.c:122 save_stack+0x122/0x230 mm/page_owner.c:165 __reset_page_owner+0x71/0x1f0 mm/page_owner.c:320 reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1433 [inline] free_unref_folios+0xd9e/0x14d0 mm/page_alloc.c:3030 folios_put_refs+0x58a/0x680 mm/swap.c:1002 folio_batch_release include/linux/pagevec.h:101 [inline] shmem_undo_range+0x529/0x1570 mm/shmem.c:1137 shmem_truncate_range mm/shmem.c:1249 [inline] shmem_evict_inode+0x240/0x9e0 mm/shmem.c:1379 evict+0x61e/0xb10 fs/inode.c:837 __dentry_kill+0x209/0x660 fs/dcache.c:670 finish_dput+0xc9/0x480 fs/dcache.c:879 __fput+0x691/0xa70 fs/file_table.c:476 task_work_run+0x1d9/0x270 kernel/task_work.c:233 exit_task_work include/linux/task_work.h:40 [inline] do_exit+0x69b/0x2310 kernel/exit.c:971 do_group_exit+0x21b/0x2d0 kernel/exit.c:1112 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:41 [inline] exit_to_user_mode_loop+0x86/0x480 kernel/entry/common.c:75 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:226 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:256 [inline] syscall_exit_to_user_mode_work include/linux/entry-common.h:159 [inline] syscall_exit_to_user_mode include/linux/entry-common.h:194 [inline] do_syscall_64+0x2b7/0xf80 arch/x86/entry/syscall_64.c:100 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7efd55f9bf4a RSP: 002b:00007efd56effe58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffec RBX: 00007efd56effee0 RCX: 00007efd55f9bf4a RDX: 0000200000000040 RSI: 0000200000000080 RDI: 0000000000000000 RBP: 0000200000000040 R08: 00007efd56effee0 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000080 R13: 00007efd56effea0 R14: 0000000000000000 R15: 0000200000002200 bridge0: received packet on veth0_to_bridge with own address as source address (addr:ce:77:fa:af:af:7b, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:ce:77:fa:af:af:7b, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:ce:77:fa:af:af:7b, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:ce:77:fa:af:af:7b, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:ce:77:fa:af:af:7b, vlan:0) net_ratelimit: 24720 callbacks suppressed bridge0: received packet on veth0_to_bridge with own address as source address (addr:ce:77:fa:af:af:7b, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:ce:77:fa:af:af:7b, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:ce:77:fa:af:af:7b, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:ce:77:fa:af:af:7b, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:ce:77:fa:af:af:7b, vlan:0)