bridge0: received packet on veth0_to_bridge with own address as source address (addr:92:0d:d5:f1:d8:71, vlan:0) rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P6802/1:b..l P5832/1:b..l rcu: (detected by 1, t=10503 jiffies, g=20869, q=593 ncpus=2) task:syz-executor state:R running task stack:19496 pid:5832 tgid:5832 ppid:5822 task_flags:0x400140 flags:0x00080000 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:trace_lock_release include/trace/events/lock.h:69 [inline] RIP: 0010:lock_release+0x4b/0x3b0 kernel/locking/lockdep.c:5879 Code: 89 44 24 28 0f 1f 44 00 00 65 8b 05 b3 11 01 11 83 f8 08 0f 83 87 02 00 00 89 c0 48 0f a3 05 dc 90 03 0e 73 0d e8 f5 f8 08 00 <84> c0 0f 84 a3 02 00 00 83 3d f6 c0 03 0e 00 0f 84 3e 02 00 00 65 RSP: 0018:ffffc9000427f5f0 EFLAGS: 00000202 RAX: 0000000000000001 RBX: 0000000000000001 RCX: c0cfe05c0d58ba00 RDX: 0000000000000000 RSI: ffffffff8be07940 RDI: ffffffff8be07900 RBP: 0000000000000000 R08: ffffffff8233e402 R09: ffffffff8e13f2e0 R10: dffffc0000000000 R11: fffff94000225027 R12: 0000000000000000 R13: ffffffff8233e777 R14: ffffffff8e13f2e0 R15: 0000003b5d92c3ee rcu_lock_release include/linux/rcupdate.h:341 [inline] rcu_read_unlock include/linux/rcupdate.h:897 [inline] page_ext_put+0xa3/0xc0 mm/page_ext.c:552 __reset_page_owner+0x67/0x1f0 mm/page_owner.c:312 reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1406 [inline] __free_frozen_pages+0xbc8/0xd30 mm/page_alloc.c:2943 discard_slab mm/slub.c:3346 [inline] __put_partials+0x146/0x170 mm/slub.c:3886 put_cpu_partial+0x1f2/0x2d0 mm/slub.c:3961 __slab_free+0x288/0x2a0 mm/slub.c:5956 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x97/0x100 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:350 kasan_slab_alloc include/linux/kasan.h:253 [inline] slab_post_alloc_hook mm/slub.c:4953 [inline] slab_alloc_node mm/slub.c:5267 [inline] kmem_cache_alloc_noprof+0x37d/0x710 mm/slub.c:5274 alloc_empty_file+0x55/0x1d0 fs/file_table.c:237 path_openat+0x108/0x3840 fs/namei.c:4772 do_filp_open+0x1fa/0x410 fs/namei.c:4813 do_sys_openat2+0x121/0x200 fs/open.c:1391 do_sys_open fs/open.c:1397 [inline] __do_sys_openat fs/open.c:1413 [inline] __se_sys_openat fs/open.c:1408 [inline] __x64_sys_openat+0x138/0x170 fs/open.c:1408 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7feb0658f041 RSP: 002b:00007ffdf9f73e40 EFLAGS: 00000287 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007feb06613d7d RCX: 00007feb0658f041 RDX: 0000000000090800 RSI: 00007ffdf9f74ff0 RDI: 00000000ffffff9c RBP: 00007ffdf9f74fdc R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000287 R12: 00007ffdf9f74ff0 R13: 00007feb06613d7d R14: 000000000002c2a6 R15: 00007ffdf9f75030 task:syz-executor state:R running task stack:19072 pid:6802 tgid:6802 ppid:1 task_flags:0x40054c flags:0x00080002 Call Trace: context_switch kernel/sched/core.c:5258 [inline] __schedule+0x150e/0x5070 kernel/sched/core.c:6866 preempt_schedule_common+0x83/0xd0 kernel/sched/core.c:7050 preempt_schedule+0xae/0xc0 kernel/sched/core.c:7074 preempt_schedule_thunk+0x16/0x30 arch/x86/entry/thunk.S:12 __raw_spin_unlock include/linux/spinlock_api_smp.h:143 [inline] _raw_spin_unlock+0x3f/0x50 kernel/locking/spinlock.c:186 spin_unlock include/linux/spinlock.h:391 [inline] zap_pte_range mm/memory.c:1884 [inline] zap_pmd_range mm/memory.c:1946 [inline] zap_pud_range mm/memory.c:1975 [inline] zap_p4d_range mm/memory.c:1996 [inline] unmap_page_range+0x3c17/0x44e0 mm/memory.c:2017 unmap_single_vma mm/memory.c:2059 [inline] unmap_vmas+0x399/0x580 mm/memory.c:2101 exit_mmap+0x239/0xb10 mm/mmap.c:1277 __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: 0033:0x7f93735c2005 RSP: 002b:00007ffe321127f0 EFLAGS: 00000293 ORIG_RAX: 00000000000000e6 RAX: 0000000000000000 RBX: 000000000000000d RCX: 00007f93735c2005 RDX: 00007ffe32112830 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 00007ffe3211289c R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000003 R13: 0000000000000035 R14: 000000000002c04b R15: 00007ffe321128f0 net_ratelimit: 15034 callbacks suppressed bridge0: received packet on veth0_to_bridge with own address as source address (addr:92:0d:d5:f1:d8:71, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:92:0d:d5:f1:d8:71, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:92:0d:d5:f1:d8:71, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:92:0d:d5:f1:d8:71, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:92:0d:d5:f1:d8:71, vlan:0) net_ratelimit: 16327 callbacks suppressed bridge0: received packet on veth0_to_bridge with own address as source address (addr:92:0d:d5:f1:d8:71, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:92:0d:d5:f1:d8:71, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:92:0d:d5:f1:d8:71, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:92:0d:d5:f1:d8:71, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:92:0d:d5:f1:d8:71, vlan:0)