bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P482/1:b..l P855/1:b..l rcu: (detected by 0, t=10503 jiffies, g=307489, q=2955 ncpus=2) task:syz.5.7392 state:R running task stack:26952 pid:855 tgid:855 ppid:797 task_flags:0x40004c flags:0x00080000 Call Trace: context_switch kernel/sched/core.c:5387 [inline] __schedule+0x17b4/0x5680 kernel/sched/core.c:7188 preempt_schedule_irq+0x4d/0xa0 kernel/sched/core.c:7512 irqentry_exit_to_kernel_mode include/linux/irq-entry-common.h:547 [inline] irqentry_exit+0x14f/0x730 kernel/entry/common.c:164 asm_sysvec_reschedule_ipi+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:ptlock_ptr include/linux/mm.h:3692 [inline] RIP: 0010:pte_lockptr include/linux/mm.h:3716 [inline] RIP: 0010:pte_offset_map_lock+0x127/0x210 mm/pgtable-generic.c:403 Code: ff e8 fd 42 a9 ff 4d 21 f5 49 c1 ed 06 4d 01 fd 49 83 c5 28 4c 89 e8 48 c1 e8 03 49 be 00 00 00 00 00 fc ff df 42 80 3c 30 00 <74> 08 4c 89 ef e8 1f d1 13 00 4d 8b 6d 00 4c 89 ef e8 c3 c3 9b 09 RSP: 0018:ffffc900039575c8 EFLAGS: 00000246 RAX: 1ffffd40001a236d RBX: ffff888041597e78 RCX: ffff888027dfbd80 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 000000003446d067 R08: ffffffff821bd039 R09: ffffffff8e95cb20 R10: ffffc90003957880 R11: fffff5200072af12 R12: 1ffff110082b2fcf R13: ffffea0000d11b68 R14: dffffc0000000000 R15: ffffea0000000000 zap_pte_range mm/memory.c:1904 [inline] zap_pmd_range mm/memory.c:2004 [inline] zap_pud_range mm/memory.c:2032 [inline] zap_p4d_range mm/memory.c:2053 [inline] __zap_vma_range+0x3e26/0x4b40 mm/memory.c:2093 unmap_vmas+0x379/0x530 mm/memory.c:2162 exit_mmap+0x280/0x9e0 mm/mmap.c:1300 __mmput+0x118/0x430 kernel/fork.c:1178 exit_mm+0x18e/0x250 kernel/exit.c:581 do_exit+0x6a2/0x22c0 kernel/exit.c:963 __do_sys_exit kernel/exit.c:1084 [inline] __se_sys_exit kernel/exit.c:1082 [inline] __x64_sys_exit+0x40/0x40 kernel/exit.c:1082 x64_sys_call+0x2231/0x2240 arch/x86/include/generated/asm/syscalls_64.h:61 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f2dfb19c819 RSP: 002b:00007f2dfc032fd8 EFLAGS: 00000246 ORIG_RAX: 000000000000003c RAX: ffffffffffffffda RBX: 00007f2dfb416180 RCX: 00007f2dfb19c819 RDX: 00007f2dfc0339c8 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 00007f2dfb232c91 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f2dfb416218 R14: 00007f2dfb416180 R15: 00007f2dfb53fa48 task:syz.3.7319 state:R running task stack:25384 pid:482 tgid:480 ppid:24424 task_flags:0x40044c flags:0x00080002 Call Trace: context_switch kernel/sched/core.c:5387 [inline] __schedule+0x17b4/0x5680 kernel/sched/core.c:7188 preempt_schedule_irq+0x4d/0xa0 kernel/sched/core.c:7512 irqentry_exit_to_kernel_mode include/linux/irq-entry-common.h:547 [inline] irqentry_exit+0x14f/0x730 kernel/entry/common.c:164 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697 RIP: 0010:lock_release+0x2d7/0x3c0 kernel/locking/lockdep.c:5893 Code: 49 9e 11 00 00 00 00 eb b5 e8 95 a8 13 0a f7 c3 00 02 00 00 74 b9 65 48 8b 05 75 03 9e 11 48 3b 44 24 28 75 44 fb 48 83 c4 30 <5b> 41 5c 41 5d 41 5e 41 5f 5d e9 da 98 16 0a cc 48 8d 3d 42 26 95 RSP: 0018:ffffc900032eede8 EFLAGS: 00000286 RAX: fcd7db5616bf0400 RBX: 0000000000000202 RCX: 0000000000000046 RDX: 0000000000000001 RSI: ffffffff8e243bae RDI: ffffffff8c287ee0 RBP: ffff88806d9c0bb8 R08: ffff88801cd240d7 R09: 1ffff110039a481a R10: dffffc0000000000 R11: ffffed10039a481b R12: 0000000000000001 R13: 0000000000000001 R14: ffffffff8e95cb20 R15: ffff88806d9c0000 rcu_lock_release include/linux/rcupdate.h:310 [inline] rcu_read_unlock include/linux/rcupdate.h:869 [inline] __update_page_owner_free_handle+0x451/0x470 mm/page_owner.c:295 __reset_page_owner+0x85/0x1f0 mm/page_owner.c:321 reset_page_owner include/linux/page_owner.h:25 [inline] __free_pages_prepare mm/page_alloc.c:1404 [inline] free_unref_folios+0xcec/0x1480 mm/page_alloc.c:3006 folios_put_refs+0x789/0x8d0 mm/swap.c:1002 free_pages_and_swap_cache+0x2b9/0x490 mm/swap_state.c:401 __tlb_batch_free_encoded_pages mm/mmu_gather.c:138 [inline] tlb_batch_pages_flush mm/mmu_gather.c:151 [inline] tlb_flush_mmu_free mm/mmu_gather.c:417 [inline] tlb_flush_mmu+0x6d3/0xa30 mm/mmu_gather.c:424 zap_pte_range mm/memory.c:1957 [inline] zap_pmd_range mm/memory.c:2004 [inline] zap_pud_range mm/memory.c:2032 [inline] zap_p4d_range mm/memory.c:2053 [inline] __zap_vma_range+0x3dc3/0x4b40 mm/memory.c:2093 unmap_vmas+0x379/0x530 mm/memory.c:2162 exit_mmap+0x280/0x9e0 mm/mmap.c:1300 __mmput+0x118/0x430 kernel/fork.c:1178 exit_mm+0x18e/0x250 kernel/exit.c:581 do_exit+0x6a2/0x22c0 kernel/exit.c:963 do_group_exit+0x21b/0x2d0 kernel/exit.c:1117 get_signal+0x1284/0x1330 kernel/signal.c:3037 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:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:238 [inline] syscall_exit_to_user_mode include/linux/entry-common.h:328 [inline] do_syscall_64+0x33e/0xf80 arch/x86/entry/syscall_64.c:100 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fec2899c819 RSP: 002b:00007fec26bd5028 EFLAGS: 00000246 ORIG_RAX: 000000000000012b RAX: 0000000000010106 RBX: 00007fec28c16090 RCX: 00007fec2899c819 RDX: 0000000000010106 RSI: 00002000000000c0 RDI: 0000000000000003 RBP: 00007fec28a32c91 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fec28c16128 R14: 00007fec28c16090 R15: 00007fec28d3fa48 net_ratelimit: 13671 callbacks suppressed bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) net_ratelimit: 16370 callbacks suppressed bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)