bridge0: received packet on bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:1c, vlan:0) rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P16763/1:b..l rcu: (detected by 0, t=10503 jiffies, g=83665, q=2625 ncpus=2) task:syz-executor state:R running task stack:23056 pid:16763 tgid:16763 ppid:16746 task_flags:0x400140 flags:0x00080000 Call Trace: context_switch kernel/sched/core.c:5504 [inline] __schedule+0x17d9/0x56c0 kernel/sched/core.c:7228 preempt_schedule_irq+0x4d/0xa0 kernel/sched/core.c:7552 irqentry_exit_to_kernel_mode include/linux/irq-entry-common.h:539 [inline] irqentry_exit+0x14f/0x8f0 kernel/entry/common.c:167 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674 RIP: 0010:deref_stack_reg arch/x86/kernel/unwind_orc.c:422 [inline] RIP: 0010:unwind_next_frame+0xca0/0x2550 arch/x86/kernel/unwind_orc.c:614 Code: 0f 97 c0 20 c8 3c 01 0f 85 90 0e 00 00 48 8d 42 08 48 39 d8 0f 97 c1 4c 39 f8 0f 96 c0 20 c8 3c 01 0f 85 76 0e 00 00 48 89 d7 eb 23 00 00 48 89 c3 49 bc 00 00 00 00 00 fc ff df 48 8b 44 24 RSP: 0018:ffffc900030ef820 EFLAGS: 00000202 RAX: ffffc900030efc01 RBX: 1ffff9200061df1a RCX: 1ffff9200061df01 RDX: ffffc900030efce0 RSI: 0000000000000002 RDI: ffffc900030efce0 RBP: 1ffffffff21a7734 R08: ffffc900030efce8 R09: 0000000000000000 R10: ffffc900030ef918 R11: ffffffff81b10630 R12: 1ffff9200061df1b R13: ffffc900030f0000 R14: ffffc900030ef8c8 R15: ffffc900030e8000 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:1397 [inline] __free_frozen_pages+0xc0d/0xd20 mm/page_alloc.c:2938 __slab_free+0x274/0x2c0 mm/slub.c:5672 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:4610 [inline] slab_alloc_node mm/slub.c:4939 [inline] kmem_cache_alloc_noprof+0x2b8/0x650 mm/slub.c:4946 alloc_filename fs/namei.c:147 [inline] do_getname+0x2e/0x250 fs/namei.c:187 class_filename_flags_constructor include/linux/fs.h:2566 [inline] do_sys_openat2+0xcc/0x200 fs/open.c:1394 do_sys_open fs/open.c:1401 [inline] __do_sys_openat fs/open.c:1417 [inline] __se_sys_openat fs/open.c:1412 [inline] __x64_sys_openat+0x138/0x170 fs/open.c:1412 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f873839c17c RSP: 002b:00007ffdb38ec180 EFLAGS: 00000206 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007f87384322ca RCX: 00007f873839c17c RDX: 0000000000090800 RSI: 00007ffdb38ed330 RDI: 00000000ffffff9c RBP: 00007ffdb38ed31c R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffdb38ed330 R13: 00007f87384322ca R14: 0000000000059c3b R15: 00007ffdb38ed370 bridge0: received packet on veth1_to_bridge with own address as source address (addr:6a:e2:1e:de:ae:b8, vlan:0) bridge0: received packet on veth1_to_bridge with own address as source address (addr:6a:e2:1e:de:ae:b8, vlan:0) bridge0: received packet on bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:1c, vlan:0) bridge0: received packet on bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:1c, vlan:0) bridge0: received packet on bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:1c, vlan:0) bridge0: received packet on bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:1c, vlan:0) bridge0: received packet on bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:1c, vlan:0) bridge0: received packet on veth1_to_bridge with own address as source address (addr:6a:e2:1e:de:ae:b8, vlan:0) bridge0: received packet on veth1_to_bridge with own address as source address (addr:6a:e2:1e:de:ae:b8, vlan:0) bridge0: received packet on bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:1c, vlan:0)