bridge0: received packet on veth0_to_bridge with own address as source address (addr:ae:8f:60:d8:37:ea, vlan:0) rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P5841/1:b..l rcu: (detected by 1, t=10503 jiffies, g=22101, q=1772 ncpus=2) task:syz-executor state:R running task stack:22048 pid:5841 tgid:5841 ppid:5840 task_flags:0x400140 flags:0x00080000 Call Trace: context_switch kernel/sched/core.c:5354 [inline] __schedule+0x165c/0x5520 kernel/sched/core.c:6966 preempt_schedule_irq+0x4d/0xa0 kernel/sched/core.c:7294 irqentry_exit+0x5e4/0x700 kernel/entry/common.c:240 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697 RIP: 0010:debug_lockdep_rcu_enabled+0xd/0x40 kernel/rcu/update.c:320 Code: 8e 67 48 0f b9 3a 90 eb ca cc cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 31 c0 83 3d 33 46 79 04 00 <74> 1d 83 3d ea 77 79 04 00 74 14 65 48 8b 0d 28 46 87 07 31 c0 83 RSP: 0018:ffffc90004507190 EFLAGS: 00000202 RAX: 0000000000000000 RBX: ffffffff822fa832 RCX: 0000000000000046 RDX: 000000005c49d610 RSI: ffffffff8e37db44 RDI: ffffffff8c2a9260 RBP: dffffc0000000000 R08: ffffffff81776256 R09: ffffffff8e95d260 R10: ffffc900045072b8 R11: ffffffff81b1aa30 R12: ffffc900045072a0 R13: 1ffff920008a0e4d R14: ffffc90004507268 R15: ffffffff81776256 rcu_read_lock include/linux/rcupdate.h:851 [inline] class_rcu_constructor include/linux/rcupdate.h:1193 [inline] unwind_next_frame+0xcc/0x2550 arch/x86/kernel/unwind_orc.c:495 arch_stack_walk+0x11b/0x150 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0xa9/0x100 kernel/stacktrace.c:122 save_stack+0x122/0x230 mm/page_owner.c:165 __reset_page_owner+0x71/0x1f0 mm/page_owner.c:320 reset_page_owner include/linux/page_owner.h:25 [inline] __free_pages_prepare mm/page_alloc.c:1402 [inline] __free_frozen_pages+0xbc7/0xd30 mm/page_alloc.c:2943 __slab_free+0x274/0x2c0 mm/slub.c:5605 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x99/0x100 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:4569 [inline] slab_alloc_node mm/slub.c:4898 [inline] kmem_cache_alloc_noprof+0x2bc/0x650 mm/slub.c:4905 vm_area_dup+0x2b/0x680 mm/vma_init.c:123 dup_mmap+0x8b1/0x1d90 mm/mmap.c:1786 dup_mm kernel/fork.c:1534 [inline] copy_mm+0x13b/0x4a0 kernel/fork.c:1586 copy_process+0x1efd/0x4430 kernel/fork.c:2261 kernel_clone+0x2d7/0x940 kernel/fork.c:2723 __do_sys_clone kernel/fork.c:2864 [inline] __se_sys_clone kernel/fork.c:2848 [inline] __x64_sys_clone+0x1b6/0x230 kernel/fork.c:2848 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: 0033:0x7ff71ebc5292 RSP: 002b:00007ffcf82fa610 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 00007ffcf82fa610 RCX: 00007ff71ebc5292 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 RBP: 00007ffcf82fa79c R08: 0000000000000000 R09: 0000000000000001 R10: 000055555f2187d0 R11: 0000000000000246 R12: 0000000000000001 R13: 000000000000004d R14: 0000000000020130 R15: 00007ffcf82fa7f0 net_ratelimit: 16129 callbacks suppressed bridge0: received packet on veth0_to_bridge with own address as source address (addr:ae:8f:60:d8:37:ea, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:ae:8f:60:d8:37:ea, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:ae:8f:60:d8:37:ea, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:ae:8f:60:d8:37:ea, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:ae:8f:60:d8:37:ea, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:ae:8f:60:d8:37:ea, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:ae:8f:60:d8:37:ea, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:ae:8f:60:d8:37:ea, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:ae:8f:60:d8:37:ea, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:ae:8f:60:d8:37:ea, vlan:0)