bridge0: received packet on veth0_to_bridge with own address as source address (addr:76:76:74:fc:86:d7, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P5924/1:b..l P2/1:b..l rcu: (detected by 0, t=10502 jiffies, g=139905, q=914 ncpus=1) task:kthreadd state:R running task stack:26624 pid:2 tgid:2 ppid:0 task_flags:0x208040 flags:0x00080000 Call Trace: context_switch kernel/sched/core.c:5295 [inline] __schedule+0xfee/0x60e0 kernel/sched/core.c:6907 preempt_schedule_irq+0x50/0x90 kernel/sched/core.c:7234 irqentry_exit+0x17b/0x670 kernel/entry/common.c:239 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697 RIP: 0010:rcu_lock_acquire include/linux/rcupdate.h:312 [inline] RIP: 0010:rcu_read_lock include/linux/rcupdate.h:850 [inline] RIP: 0010:class_rcu_constructor include/linux/rcupdate.h:1193 [inline] RIP: 0010:unwind_next_frame+0xb3/0x1ea0 arch/x86/kernel/unwind_orc.c:495 Code: b8 00 00 00 00 00 fc ff df 48 c1 ea 03 80 3c 02 00 0f 85 96 17 00 00 49 8b 45 38 48 89 44 24 10 e8 42 e6 34 00 31 d2 45 31 c9 <45> 31 c0 48 8d 05 00 00 00 00 50 b9 02 00 00 00 31 f6 48 c7 c7 e0 RSP: 0018:ffffc900000774c0 EFLAGS: 00000246 RAX: 0000000000000001 RBX: 0000000000000001 RCX: ffffc90000077484 RDX: 0000000000000000 RSI: ffffffff81ad1544 RDI: ffff88801e2ac104 RBP: ffffc90000077578 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000200 R11: 000000000000d168 R12: ffffffff81f28cf0 R13: ffffc90000077530 R14: 0000000000000000 R15: ffff88801e2abc80 arch_stack_walk+0x94/0xf0 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x8e/0xc0 kernel/stacktrace.c:122 kasan_save_stack+0x30/0x50 mm/kasan/common.c:57 kasan_save_track+0x14/0x30 mm/kasan/common.c:78 kasan_save_free_info+0x3b/0x70 mm/kasan/generic.c:584 poison_slab_object mm/kasan/common.c:253 [inline] __kasan_slab_free+0x5f/0x80 mm/kasan/common.c:285 kasan_slab_free include/linux/kasan.h:235 [inline] slab_free_hook mm/slub.c:2670 [inline] slab_free mm/slub.c:6082 [inline] kfree+0x1f6/0x6b0 mm/slub.c:6399 free_slab_obj_exts mm/slub.c:2262 [inline] unaccount_slab mm/slub.c:3379 [inline] __free_slab+0x145/0x220 mm/slub.c:3483 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x47/0xe0 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x1a0/0x1f0 mm/kasan/quarantine.c:286 __kasan_kmalloc+0x8a/0xb0 mm/kasan/common.c:406 kmalloc_noprof include/linux/slab.h:962 [inline] kzalloc_noprof include/linux/slab.h:1204 [inline] set_kthread_struct+0xcb/0x3a0 kernel/kthread.c:125 copy_process+0x3978/0x7a10 kernel/fork.c:2152 kernel_clone+0xfc/0x9a0 kernel/fork.c:2654 kernel_thread+0xdb/0x120 kernel/fork.c:2715 create_kthread kernel/kthread.c:490 [inline] kthreadd+0x498/0x7a0 kernel/kthread.c:849 ret_from_fork+0x754/0xd80 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 task:syz-executor state:R running task stack:25656 pid:5924 tgid:5924 ppid:5808 task_flags:0x40050c flags:0x00080002 Call Trace: context_switch kernel/sched/core.c:5295 [inline] __schedule+0xfee/0x60e0 kernel/sched/core.c:6907 preempt_schedule_common+0x42/0xc0 kernel/sched/core.c:7091 preempt_schedule_thunk+0x16/0x30 arch/x86/entry/thunk.S:12 __raw_spin_unlock include/linux/spinlock_api_smp.h:169 [inline] _raw_spin_unlock+0x3e/0x50 kernel/locking/spinlock.c:186 spin_unlock include/linux/spinlock.h:389 [inline] zap_pte_range mm/memory.c:1946 [inline] zap_pmd_range mm/memory.c:2008 [inline] zap_pud_range mm/memory.c:2036 [inline] zap_p4d_range mm/memory.c:2057 [inline] unmap_page_range+0x152f/0x4840 mm/memory.c:2078 unmap_single_vma+0x153/0x240 mm/memory.c:2120 unmap_vmas+0x218/0x470 mm/memory.c:2162 exit_mmap+0x18a/0xdd0 mm/mmap.c:1277 __mmput+0x12a/0x410 kernel/fork.c:1174 mmput+0x67/0x80 kernel/fork.c:1197 exit_mm kernel/exit.c:581 [inline] do_exit+0x78a/0x2a90 kernel/exit.c:959 do_group_exit+0xd5/0x2a0 kernel/exit.c:1112 get_signal+0x1ec7/0x21e0 kernel/signal.c:3034 arch_do_signal_or_restart+0x91/0x770 arch/x86/kernel/signal.c:337 __exit_to_user_mode_loop kernel/entry/common.c:64 [inline] exit_to_user_mode_loop+0x86/0x4a0 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+0x668/0xf80 arch/x86/entry/syscall_64.c:100 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7ff120557197 RSP: 002b:00007ffc36b23610 EFLAGS: 00000202 ORIG_RAX: 000000000000003d RAX: fffffffffffffe00 RBX: 0000555595030500 RCX: 00007ff120557197 RDX: 0000000040000000 RSI: 00007ffc36b2366c RDI: ffffffffffffffff RBP: 00007ffc36b2366c R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000008 R13: 0000000000000003 R14: 00007ffc36b238c8 R15: 0000000000000000 net_ratelimit: 8574 callbacks suppressed bridge0: received packet on veth0_to_bridge with own address as source address (addr:76:76:74:fc:86:d7, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:76:76:74:fc:86:d7, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:76:76:74:fc:86:d7, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:76:76:74:fc:86:d7, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:76:76:74:fc:86:d7, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) net_ratelimit: 9101 callbacks suppressed bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:76:76:74:fc:86:d7, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:76:76:74:fc:86:d7, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:76:76:74:fc:86:d7, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:76:76:74:fc:86:d7, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:76:76:74:fc:86:d7, vlan:0)