bridge0: received packet on veth0_to_bridge with own address as source address (addr:1e:93:68:3a:3a:f7, vlan:0) rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P17413/1:b..l rcu: (detected by 1, t=10503 jiffies, g=67173, q=3072 ncpus=2) task:syz.0.3157 state:R running task stack:26008 pid:17413 tgid:17406 ppid:16021 task_flags:0x40044c flags:0x00080001 Call Trace: context_switch kernel/sched/core.c:5298 [inline] __schedule+0x15dd/0x52d0 kernel/sched/core.c:6911 preempt_schedule_irq+0x4d/0xa0 kernel/sched/core.c:7238 irqentry_exit+0x599/0x620 kernel/entry/common.c:239 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697 RIP: 0010:lock_acquire+0x20b/0x2e0 kernel/locking/lockdep.c:5872 Code: e9 30 ff ff ff e8 45 95 0f 0a f7 c3 00 02 00 00 0f 84 38 ff ff ff 65 48 8b 05 c1 22 7b 11 48 3b 44 24 30 75 33 fb 48 83 c4 38 <5b> 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc cc 48 8d 3d be 52 73 RSP: 0018:ffffc90003486d18 EFLAGS: 00000286 RAX: cc540113e92b7500 RBX: 0000000000000246 RCX: 0000000000000046 RDX: 000000005a44979c RSI: ffffffff8e19ac64 RDI: ffffffff8c27ca80 RBP: 0000000000000000 R08: ffffffff81767e95 R09: ffffffff8e75e620 R10: ffffc90003486e78 R11: ffffffff81b0cfd0 R12: 0000000000000002 R13: ffffffff8e75e620 R14: 0000000000000000 R15: 0000000000000000 rcu_lock_acquire include/linux/rcupdate.h:312 [inline] rcu_read_lock include/linux/rcupdate.h:850 [inline] class_rcu_constructor include/linux/rcupdate.h:1193 [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+0xed5/0x16d0 mm/page_alloc.c:3040 folios_put_refs+0x789/0x8d0 mm/swap.c:1002 folio_batch_release include/linux/pagevec.h:101 [inline] shmem_undo_range+0x52c/0x1660 mm/shmem.c:1149 shmem_truncate_range mm/shmem.c:1277 [inline] shmem_evict_inode+0x240/0x9e0 mm/shmem.c:1407 evict+0x61e/0xb10 fs/inode.c:846 __dentry_kill+0x1a2/0x5e0 fs/dcache.c:670 finish_dput+0xc9/0x480 fs/dcache.c:879 __fput+0x691/0xa70 fs/file_table.c:477 task_work_run+0x1d9/0x270 kernel/task_work.c:233 exit_task_work include/linux/task_work.h:40 [inline] do_exit+0x70f/0x23c0 kernel/exit.c:976 do_group_exit+0x21b/0x2d0 kernel/exit.c:1118 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:64 [inline] exit_to_user_mode_loop+0x86/0x480 kernel/entry/common.c:98 __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 include/linux/entry-common.h:325 [inline] do_syscall_64+0x32d/0xf80 arch/x86/entry/syscall_64.c:100 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f94cfb9c799 RSP: 002b:00007f94cddf60e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 00007f94cfe16098 RCX: 00007f94cfb9c799 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f94cfe16098 RBP: 00007f94cfe16090 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f94cfe16128 R14: 00007ffc34b479c0 R15: 00007ffc34b47aa8 net_ratelimit: 20000 callbacks suppressed bridge0: received packet on veth0_to_bridge with own address as source address (addr:1e:93:68:3a:3a:f7, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:1e:93:68:3a:3a:f7, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:1e:93:68:3a:3a:f7, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:1e:93:68:3a:3a:f7, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:1e:93:68:3a:3a:f7, vlan:0) net_ratelimit: 21623 callbacks suppressed bridge0: received packet on veth0_to_bridge with own address as source address (addr:1e:93:68:3a:3a:f7, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:1e:93:68:3a:3a:f7, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:1e:93:68:3a:3a:f7, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:1e:93:68:3a:3a:f7, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:1e:93:68:3a:3a:f7, vlan:0)