bridge0: received packet on veth0_to_bridge with own address as source address (addr:6a:a3:ba:c8:69:0f, vlan:0) rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P23411/1:b..l rcu: (detected by 1, t=10503 jiffies, g=160437, q=738 ncpus=2) task:syz.5.5095 state:R running task stack:24024 pid:23411 tgid:23411 ppid:20218 task_flags:0x40044c flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:5396 [inline] __schedule+0x16f5/0x4d00 kernel/sched/core.c:6785 preempt_schedule_irq+0xb5/0x150 kernel/sched/core.c:7108 irqentry_exit+0x6f/0x90 kernel/entry/common.c:307 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:lock_release+0x2b5/0x3e0 kernel/locking/lockdep.c:5896 Code: 51 48 c7 44 24 20 00 00 00 00 9c 8f 44 24 20 f7 44 24 20 00 02 00 00 75 56 f7 c3 00 02 00 00 74 01 fb 65 48 8b 05 9b ca fe 10 <48> 3b 44 24 28 0f 85 8b 00 00 00 48 83 c4 30 5b 41 5c 41 5d 41 5e RSP: 0018:ffffc900039c7190 EFLAGS: 00000206 RAX: c58571ff13597f00 RBX: 0000000000000202 RCX: c58571ff13597f00 RDX: 0000000000000001 RSI: ffffffff8db6ee09 RDI: ffffffff8be28c80 RBP: ffff88802ada4718 R08: ffffc900039c7327 R09: 0000000000000000 R10: ffffc900039c7318 R11: fffff52000738e65 R12: 0000000000000001 R13: 0000000000000001 R14: ffffffff8e13ee20 R15: ffff88802ada3c00 rcu_lock_release include/linux/rcupdate.h:341 [inline] rcu_read_unlock include/linux/rcupdate.h:871 [inline] class_rcu_destructor include/linux/rcupdate.h:1155 [inline] unwind_next_frame+0x19a9/0x2390 arch/x86/kernel/unwind_orc.c:680 arch_stack_walk+0x11c/0x150 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x9c/0xe0 kernel/stacktrace.c:122 kasan_save_stack+0x3e/0x60 mm/kasan/common.c:47 kasan_record_aux_stack+0xbd/0xd0 mm/kasan/generic.c:548 __call_rcu_common kernel/rcu/tree.c:3094 [inline] call_rcu+0x157/0x9c0 kernel/rcu/tree.c:3214 slab_free_hook mm/slub.c:2345 [inline] slab_free mm/slub.c:4643 [inline] kmem_cache_free+0x309/0x400 mm/slub.c:4745 exit_mmap+0x53f/0xb50 mm/mmap.c:1309 __mmput+0x118/0x420 kernel/fork.c:1121 exit_mm+0x1da/0x2c0 kernel/exit.c:581 do_exit+0x648/0x22e0 kernel/exit.c:952 do_group_exit+0x21c/0x2d0 kernel/exit.c:1105 get_signal+0x1286/0x1340 kernel/signal.c:3034 arch_do_signal_or_restart+0x9a/0x750 arch/x86/kernel/signal.c:337 exit_to_user_mode_loop+0x75/0x110 kernel/entry/common.c:111 exit_to_user_mode_prepare include/linux/entry-common.h:330 [inline] syscall_exit_to_user_mode_work include/linux/entry-common.h:414 [inline] syscall_exit_to_user_mode include/linux/entry-common.h:449 [inline] do_syscall_64+0x2bd/0x3b0 arch/x86/entry/syscall_64.c:100 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fab95d8e929 RSP: 002b:00007fab960dfb88 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffdfc RBX: 000000000013ae35 RCX: 00007fab95d8e929 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007fab95fb608c RBP: 0000000000000032 R08: 7fffffffffffffff R09: 00000018960dfe7f R10: 00007fab960dfc80 R11: 0000000000000246 R12: 00007fab95fb608c R13: 00007fab960dfc80 R14: 000000000013ae67 R15: 00007fab960dfca0 net_ratelimit: 16045 callbacks suppressed bridge0: received packet on veth0_to_bridge with own address as source address (addr:6a:a3:ba:c8:69:0f, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:6a:a3:ba:c8:69:0f, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:6a:a3:ba:c8:69:0f, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:6a:a3:ba:c8:69:0f, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:6a:a3:ba:c8:69:0f, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:6a:a3:ba:c8:69:0f, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:6a:a3:ba:c8:69:0f, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:6a:a3:ba:c8:69:0f, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:6a:a3:ba:c8:69:0f, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:6a:a3:ba:c8:69:0f, vlan:0)