bridge0: received packet on veth0_to_bridge with own address as source address (addr:a2:19:23:8d:87:a0, vlan:0) rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P9035/1:b..l rcu: (detected by 0, t=10503 jiffies, g=30929, q=597 ncpus=2) task:syz.1.589 state:R running task stack:26200 pid:9035 tgid:9027 ppid:6402 task_flags:0x40044c flags:0x00004006 Call Trace: context_switch kernel/sched/core.c:5382 [inline] __schedule+0x16e2/0x4cd0 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:srso_alias_safe_ret+0x5/0x7 arch/x86/lib/retpoline.S:174 Code: cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc 48 8d 64 24 08 cc e8 f4 ff ff ff 0f 0b cc cc cc cc cc cc cc cc cc cc cc cc cc RSP: 0018:ffffc90010b96db0 EFLAGS: 00000283 RAX: 0000000000000001 RBX: ffffffff822b1521 RCX: dffffc0000000000 RDX: dffffc0000000000 RSI: ffffffff822b1521 RDI: ffffc90010b96e88 RBP: dffffc0000000000 R08: ffffc90010b96f50 R09: 0000000000000000 R10: dffffc0000000000 R11: ffffffff81acddd0 R12: 1ffff92002172dd1 R13: ffffc90010b96ec0 R14: ffffc90010b96e88 R15: ffffc90010b97108 rcu_read_lock include/linux/rcupdate.h:839 [inline] class_rcu_constructor include/linux/rcupdate.h:1155 [inline] unwind_next_frame+0x9e/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:1258 [inline] free_unref_folios+0xb81/0x14a0 mm/page_alloc.c:2778 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+0x504/0x9c0 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+0x1d4/0x260 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: 0033:0x7f790318e969 RSP: 002b:00007f7903f68038 EFLAGS: 00000246 ORIG_RAX: 000000000000012b RAX: 0000000000010106 RBX: 00007f79033b6080 RCX: 00007f790318e969 RDX: 0000000000010106 RSI: 00002000000000c0 RDI: 0000000000000008 RBP: 00007f7903210ab1 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000001 R14: 00007f79033b6080 R15: 00007fffa572a758 bridge0: received packet on veth0_to_bridge with own address as source address (addr:a2:19:23:8d:87:a0, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:a2:19:23:8d:87:a0, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:a2:19:23:8d:87:a0, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:a2:19:23:8d:87:a0, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:a2:19:23:8d:87:a0, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:a2:19:23:8d:87:a0, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:a2:19:23:8d:87:a0, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:a2:19:23:8d:87:a0, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:a2:19:23:8d:87:a0, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:a2:19:23:8d:87:a0, vlan:0)