bridge0: received packet on veth0_to_bridge with own address as source address (addr:6e:02:f3:a6:b4:4e, vlan:0) rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P6939/1:b..l rcu: (detected by 1, t=10503 jiffies, g=14253, q=1664 ncpus=2) task:syz.3.241 state:R running task stack:24584 pid:6939 tgid:6939 ppid:5820 task_flags:0x400040 flags:0x00080002 Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x1798/0x4cc0 kernel/sched/core.c:6929 preempt_schedule_irq+0xb5/0x150 kernel/sched/core.c:7256 irqentry_exit+0x6f/0x90 kernel/entry/common.c:211 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697 RIP: 0010:native_save_fl arch/x86/include/asm/irqflags.h:32 [inline] RIP: 0010:arch_local_save_flags arch/x86/include/asm/irqflags.h:109 [inline] RIP: 0010:arch_local_irq_save arch/x86/include/asm/irqflags.h:127 [inline] RIP: 0010:lock_release+0xaa/0x3e0 kernel/locking/lockdep.c:5885 Code: 92 41 83 bf 2c 0b 00 00 00 0f 85 1e 02 00 00 49 81 3e 40 63 32 93 0f 84 11 02 00 00 48 c7 44 24 20 00 00 00 00 9c 8f 44 24 20 <48> 8b 5c 24 20 fa 48 c7 c7 01 58 72 8d e8 24 f9 a9 09 65 ff 05 2d RSP: 0018:ffffc9000bb672f0 EFLAGS: 00000202 RAX: 0000000000000000 RBX: ffffffff90b09201 RCX: 7568676cfdef0d00 RDX: ffffc9000bb67401 RSI: ffffffff8bbf08c0 RDI: ffffffff8bbf0880 RBP: dffffc0000000000 R08: ffffc9000bb67f38 R09: 0000000000000000 R10: ffffc9000bb67478 R11: fffff5200176ce91 R12: ffffc9000bb67f48 R13: ffffffff81738c45 R14: ffffffff8df3d6e0 R15: ffff8880250f3c80 rcu_lock_release include/linux/rcupdate.h:341 [inline] rcu_read_unlock include/linux/rcupdate.h:897 [inline] class_rcu_destructor include/linux/rcupdate.h:1195 [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 save_stack+0xf5/0x1f0 mm/page_owner.c:156 __reset_page_owner+0x71/0x1f0 mm/page_owner.c:311 reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1394 [inline] __free_frozen_pages+0xbc4/0xd30 mm/page_alloc.c:2901 discard_slab mm/slub.c:3330 [inline] __put_partials+0x146/0x170 mm/slub.c:3876 put_cpu_partial+0x1f2/0x2e0 mm/slub.c:3951 __slab_free+0x2b9/0x390 mm/slub.c:5929 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x97/0x140 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286 __kasan_kmalloc+0x22/0xb0 mm/kasan/common.c:408 kasan_kmalloc include/linux/kasan.h:262 [inline] __do_kmalloc_node mm/slub.c:5650 [inline] __kmalloc_noprof+0x411/0x7f0 mm/slub.c:5662 kmalloc_noprof include/linux/slab.h:961 [inline] kzalloc_noprof include/linux/slab.h:1094 [inline] lsm_blob_alloc security/security.c:690 [inline] lsm_task_alloc security/security.c:777 [inline] security_task_alloc+0x4d/0x360 security/security.c:3229 copy_process+0x1530/0x3c00 kernel/fork.c:2163 kernel_clone+0x21e/0x840 kernel/fork.c:2609 __do_sys_clone3 kernel/fork.c:2911 [inline] __se_sys_clone3+0x256/0x2d0 kernel/fork.c:2890 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f17269c3e89 RSP: 002b:00007ffccee8dad8 EFLAGS: 00000206 ORIG_RAX: 00000000000001b3 RAX: ffffffffffffffda RBX: 00007f17269462a0 RCX: 00007f17269c3e89 RDX: 00007f17269462a0 RSI: 0000000000000058 RDI: 00007ffccee8db20 RBP: 00007f17243b06c0 R08: 00007f17243b06c0 R09: 00007ffccee8dc07 R10: 0000000000000008 R11: 0000000000000206 R12: ffffffffffffffa8 R13: 000000000000006e R14: 00007ffccee8db20 R15: 00007ffccee8dc08 bridge0: received packet on veth0_to_bridge with own address as source address (addr:6e:02:f3:a6:b4:4e, 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:6e:02:f3:a6:b4:4e, 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:6e:02:f3:a6:b4:4e, vlan:0) net_ratelimit: 17189 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:6e:02:f3:a6:b4:4e, 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:6e:02:f3:a6:b4:4e, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0)