bridge0: received packet on veth0_to_bridge with own address as source address (addr:32:01:92:e9:8d:46, vlan:0) rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P10708/1:b..l rcu: (detected by 1, t=10503 jiffies, g=80225, q=783 ncpus=2) task:syz.6.1342 state:R running task stack:26216 pid:10708 tgid:10708 ppid:10011 task_flags:0x40044c flags:0x00080002 Call Trace: context_switch kernel/sched/core.c:5258 [inline] __schedule+0x150e/0x5070 kernel/sched/core.c:6866 preempt_schedule_irq+0xb5/0x150 kernel/sched/core.c:7193 irqentry_exit+0x5d8/0x660 kernel/entry/common.c:216 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697 RIP: 0010:lock_acquire+0x16c/0x340 kernel/locking/lockdep.c:5872 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 44 91 25 11 <48> 3b 44 24 58 0f 85 e5 00 00 00 48 83 c4 60 5b 41 5c 41 5d 41 5e RSP: 0018:ffffc9000bce6eb8 EFLAGS: 00000206 RAX: 0addaaa5bb036b00 RBX: 0000000000000000 RCX: 0addaaa5bb036b00 RDX: 00000000c5df11f8 RSI: ffffffff8dc93c7b RDI: ffffffff8be247e0 RBP: ffffffff81746f85 R08: ffffffff81746f85 R09: ffffffff8e33f2e0 R10: ffffc9000bce7078 R11: ffffffff81addd50 R12: 0000000000000002 R13: ffffffff8e33f2e0 R14: 0000000000000000 R15: 0000000000000246 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+0xc2/0x23d0 arch/x86/kernel/unwind_orc.c:495 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: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:1406 [inline] free_unref_folios+0xdb3/0x14f0 mm/page_alloc.c:3000 folios_put_refs+0x584/0x670 mm/swap.c:1002 free_pages_and_swap_cache+0x277/0x520 mm/swap_state.c:355 __tlb_batch_free_encoded_pages mm/mmu_gather.c:136 [inline] tlb_batch_pages_flush mm/mmu_gather.c:149 [inline] tlb_flush_mmu_free mm/mmu_gather.c:397 [inline] tlb_flush_mmu+0x3a2/0x680 mm/mmu_gather.c:404 tlb_finish_mmu+0xf9/0x230 mm/mmu_gather.c:504 exit_mmap+0x439/0xb10 mm/mmap.c:1290 __mmput+0x118/0x430 kernel/fork.c:1177 exit_mm+0x1da/0x2c0 kernel/exit.c:581 do_exit+0x850/0x25b0 kernel/exit.c:959 do_group_exit+0x21c/0x2d0 kernel/exit.c:1112 get_signal+0x1285/0x1340 kernel/signal.c:3034 arch_do_signal_or_restart+0x9a/0x7a0 arch/x86/kernel/signal.c:337 __exit_to_user_mode_loop kernel/entry/common.c:41 [inline] exit_to_user_mode_loop+0x87/0x4f0 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+0x2d0/0xf80 arch/x86/entry/syscall_64.c:100 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fa5495c2005 RSP: 002b:00007fa54a4bcf80 EFLAGS: 00000293 ORIG_RAX: 00000000000000e6 RAX: fffffffffffffdfc RBX: 00007fa5497e6090 RCX: 00007fa5495c2005 RDX: 00007fa54a4bcfc0 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 00007fa549613f91 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000 R13: 00007fa5497e6128 R14: 00007fa5497e6090 R15: 00007ffc4da57068 net_ratelimit: 15402 callbacks suppressed bridge0: received packet on veth0_to_bridge with own address as source address (addr:32:01:92:e9:8d:46, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:32:01:92:e9:8d:46, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:32:01:92:e9:8d:46, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:32:01:92:e9:8d:46, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:32:01:92:e9:8d:46, vlan:0) net_ratelimit: 19357 callbacks suppressed bridge0: received packet on veth0_to_bridge with own address as source address (addr:32:01:92:e9:8d:46, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:32:01:92:e9:8d:46, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:32:01:92:e9:8d:46, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:32:01:92:e9:8d:46, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:32:01:92:e9:8d:46, vlan:0)