bridge0: received packet on veth0_to_bridge with own address as source address (addr:c6:3d:d6:45:d7:17, vlan:0) rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P24638/1:b..l rcu: (detected by 0, t=10502 jiffies, g=140945, q=204 ncpus=2) task:syz.3.3629 state:R running task stack:23400 pid:24638 tgid:24638 ppid:17693 task_flags:0x40064c flags:0x00004002 Call Trace: context_switch kernel/sched/core.c:5397 [inline] __schedule+0x116a/0x5dd0 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:lock_acquire+0x62/0x350 kernel/locking/lockdep.c:5875 Code: 1c 37 12 83 f8 07 0f 87 bc 02 00 00 89 c0 48 0f a3 05 d2 49 11 0f 0f 82 74 02 00 00 8b 35 9a 7b 11 0f 85 f6 0f 85 8d 00 00 00 <48> 8b 44 24 30 65 48 2b 05 69 1c 37 12 0f 85 c7 02 00 00 48 83 c4 RSP: 0018:ffffc90004996f48 EFLAGS: 00000206 RAX: 0000000000000046 RBX: ffffffff8e5c4c80 RCX: 00000000ef9d33e4 RDX: 0000000000000000 RSI: ffffffff8de04ada RDI: ffffffff8c155ee0 RBP: 0000000000000002 R08: 0ac0d5affe09d4ff R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 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+0xd1/0x20a0 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 save_stack+0x160/0x1f0 mm/page_owner.c:156 __reset_page_owner+0x84/0x1a0 mm/page_owner.c:308 reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1248 [inline] free_unref_folios+0xa65/0x1800 mm/page_alloc.c:2763 folios_put_refs+0x56f/0x740 mm/swap.c:992 folio_batch_release include/linux/pagevec.h:101 [inline] shmem_undo_range+0x58f/0x1150 mm/shmem.c:1125 shmem_truncate_range mm/shmem.c:1237 [inline] shmem_evict_inode+0x3a1/0xbe0 mm/shmem.c:1365 evict+0x3e3/0x920 fs/inode.c:810 iput_final fs/inode.c:1898 [inline] iput fs/inode.c:1924 [inline] iput+0x521/0x880 fs/inode.c:1910 dentry_unlink_inode+0x29c/0x480 fs/dcache.c:466 __dentry_kill+0x1d0/0x600 fs/dcache.c:669 dput.part.0+0x4b1/0x9b0 fs/dcache.c:911 dput+0x1f/0x30 fs/dcache.c:901 __fput+0x51c/0xb70 fs/file_table.c:473 task_work_run+0x14d/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_group_exit+0xd3/0x2a0 kernel/exit.c:1105 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:111 [inline] exit_to_user_mode_prepare include/linux/entry-common.h:330 [inline] irqentry_exit_to_user_mode+0x12a/0x270 kernel/entry/common.c:184 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623 RIP: 0033:0x7fe94c38e9b1 RSP: 002b:fffffffffffffd20 EFLAGS: 00010217 RAX: 0000000000000000 RBX: 00007fe94c5b6240 RCX: 00007fe94c38e9a9 RDX: 0000000000000000 RSI: fffffffffffffd20 RDI: 0000000000000000 RBP: 00007fe94c410d69 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007fe94c5b6240 R15: 00007ffd3e40cd48 net_ratelimit: 8697 callbacks suppressed bridge0: received packet on veth0_to_bridge with own address as source address (addr:c6:3d:d6:45:d7:17, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:c6:3d:d6:45:d7:17, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:c6:3d:d6:45:d7:17, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:c6:3d:d6:45:d7:17, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:c6:3d:d6:45:d7:17, vlan:0) net_ratelimit: 9355 callbacks suppressed bridge0: received packet on veth0_to_bridge with own address as source address (addr:c6:3d:d6:45:d7:17, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:c6:3d:d6:45:d7:17, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:c6:3d:d6:45:d7:17, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:c6:3d:d6:45:d7:17, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:c6:3d:d6:45:d7:17, vlan:0)