bridge0: received packet on veth0_to_bridge with own address as source address (addr:96:43:15:9e:0d:32, vlan:0) rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P6907/1:b..l rcu: (detected by 0, t=10503 jiffies, g=17477, q=2030 ncpus=2) task:syz.4.218 state:R running task stack:26040 pid:6907 tgid:6902 ppid:5832 task_flags:0x40044c flags:0x00004002 Call Trace: context_switch kernel/sched/core.c:5382 [inline] __schedule+0x168f/0x4c70 kernel/sched/core.c:6767 preempt_schedule_irq+0xb5/0x150 kernel/sched/core.c:7090 irqentry_exit+0x6f/0x90 kernel/entry/common.c:354 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:lock_acquire+0x175/0x360 kernel/locking/lockdep.c:5870 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 4b 10 d4 10 <48> 3b 44 24 58 0f 85 f2 00 00 00 48 83 c4 60 5b 41 5c 41 5d 41 5e RSP: 0018:ffffc9001cd3ed18 EFLAGS: 00000206 RAX: 8e2462fc3acae300 RBX: 0000000000000000 RCX: 8e2462fc3acae300 RDX: 0000000000000001 RSI: ffffffff8d9226df RDI: ffffffff8bc104e0 RBP: ffffffff8171ca05 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: ffffffff8171ca05 R12: 0000000000000002 R13: ffffffff8df3dce0 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+0xf7/0x1f0 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:1262 [inline] free_unref_folios+0xb70/0x1490 mm/page_alloc.c:2782 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:660 dput+0x19f/0x2b0 fs/dcache.c:902 __fput+0x68e/0xa70 fs/file_table.c:473 task_work_run+0x1d1/0x260 kernel/task_work.c:227 exit_task_work include/linux/task_work.h:40 [inline] do_exit+0x8d6/0x2550 kernel/exit.c:953 do_group_exit+0x21c/0x2d0 kernel/exit.c:1102 get_signal+0x125e/0x1310 kernel/signal.c:3034 arch_do_signal_or_restart+0x95/0x780 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:329 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline] syscall_exit_to_user_mode+0x8b/0x120 kernel/entry/common.c:218 do_syscall_64+0x103/0x210 arch/x86/entry/syscall_64.c:100 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f85bcd8e969 RSP: 002b:00007f85bdc49038 EFLAGS: 00000246 ORIG_RAX: 000000000000012b RAX: 0000000000010106 RBX: 00007f85bcfb6080 RCX: 00007f85bcd8e969 RDX: 0000000000010106 RSI: 00002000000000c0 RDI: 0000000000000006 RBP: 00007f85bce10ab1 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000001 R14: 00007f85bcfb6080 R15: 00007ffcead3b5a8 net_ratelimit: 15119 callbacks suppressed bridge0: received packet on veth0_to_bridge with own address as source address (addr:96:43:15:9e:0d:32, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:96:43:15:9e:0d:32, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:96:43:15:9e:0d:32, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:96:43:15:9e:0d:32, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:96:43:15:9e:0d:32, vlan:0) net_ratelimit: 17314 callbacks suppressed bridge0: received packet on veth0_to_bridge with own address as source address (addr:96:43:15:9e:0d:32, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:96:43:15:9e:0d:32, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:96:43:15:9e:0d:32, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:96:43:15:9e:0d:32, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:96:43:15:9e:0d:32, vlan:0)