bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P5154/1:b..l P5816/1:b..l rcu: (detected by 0, t=10502 jiffies, g=6761, q=1082 ncpus=2) task:syz-executor state:R running task stack:22832 pid:5816 tgid:5816 ppid:5812 task_flags:0x400140 flags:0x00000000 Call Trace: context_switch kernel/sched/core.c:5377 [inline] __schedule+0xf43/0x5890 kernel/sched/core.c:6764 preempt_schedule_irq+0x51/0x90 kernel/sched/core.c:7086 irqentry_exit+0x36/0x90 kernel/entry/common.c:354 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:lock_acquire.part.0+0x155/0x380 kernel/locking/lockdep.c:5816 Code: b8 ff ff ff ff 65 0f c1 05 70 dd 6b 7e 83 f8 01 0f 85 d0 01 00 00 9c 58 f6 c4 02 0f 85 e5 01 00 00 48 85 ed 0f 85 b6 01 00 00 <48> b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00 00 00 00 48 c7 RSP: 0018:ffffc90003147cf8 EFLAGS: 00000206 RAX: 0000000000000046 RBX: 1ffff92000628fa0 RCX: 000000008e9d5d24 RDX: 0000000000000001 RSI: ffffffff8b6cf020 RDI: ffffffff8bd34e00 RBP: 0000000000000200 R08: 0000000000000000 R09: fffffbfff2dd7b98 R10: ffffffff96ebdcc7 R11: 0000000000000002 R12: 0000000000000000 R13: ffffffff8e1bcc80 R14: 0000000000000000 R15: 0000000000000000 rcu_lock_acquire include/linux/rcupdate.h:337 [inline] rcu_read_lock include/linux/rcupdate.h:849 [inline] dput.part.0+0x4c/0x9b0 fs/dcache.c:878 dput+0x1f/0x30 fs/dcache.c:875 do_rmdir+0x2d6/0x410 fs/namei.c:4457 __do_sys_unlinkat fs/namei.c:4631 [inline] __se_sys_unlinkat fs/namei.c:4625 [inline] __x64_sys_unlinkat+0xef/0x130 fs/namei.c:4625 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fb477f8c3c7 RSP: 002b:00007fff5f365128 EFLAGS: 00000207 ORIG_RAX: 0000000000000107 RAX: ffffffffffffffda RBX: 0000000000000065 RCX: 00007fb477f8c3c7 RDX: 0000000000000200 RSI: 00007fff5f3662d0 RDI: 00000000ffffff9c RBP: 00007fb47800e08c R08: 000055555d74866b R09: 0000000000000000 R10: 0000000000001000 R11: 0000000000000207 R12: 00007fff5f3662d0 R13: 00007fb47800e08c R14: 0000000000010f2c R15: 00007fff5f368490 task:jbd2/sda1-8 state:R running task stack:25888 pid:5154 tgid:5154 ppid:2 task_flags:0x240040 flags:0x00004000 Call Trace: context_switch kernel/sched/core.c:5377 [inline] __schedule+0xf43/0x5890 kernel/sched/core.c:6764 preempt_schedule_irq+0x51/0x90 kernel/sched/core.c:7086 irqentry_exit+0x36/0x90 kernel/entry/common.c:354 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:__sanitizer_cov_trace_pc+0x18/0x70 kernel/kcov.c:213 Code: 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 65 48 8b 15 54 05 4a 7e 65 8b 05 55 05 4a 7e a9 00 01 ff 00 <48> 8b 34 24 74 1d f6 c4 01 74 43 a9 00 00 0f 00 75 3c a9 00 00 f0 RSP: 0018:ffffc9001066f5c8 EFLAGS: 00000246 RAX: 0000000080000000 RBX: 1ffff920020cdeba RCX: ffffffff82265008 RDX: ffff888036328000 RSI: 0000000000000000 RDI: 0000000000000001 RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000001 R12: ffffc9001066f5f0 R13: 0000000000002800 R14: dffffc0000000000 R15: 0000000000000000 get_current arch/x86/include/asm/current.h:49 [inline] set_current_in_page_owner mm/page_owner.c:65 [inline] save_stack+0x119/0x1f0 mm/page_owner.c:155 __reset_page_owner+0x8d/0x400 mm/page_owner.c:297 reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1127 [inline] free_frozen_pages+0x6db/0xfb0 mm/page_alloc.c:2660 __put_partials+0x14c/0x170 mm/slub.c:3153 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x4e/0x120 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x195/0x1e0 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x69/0x90 mm/kasan/common.c:329 kasan_slab_alloc include/linux/kasan.h:250 [inline] slab_post_alloc_hook mm/slub.c:4115 [inline] slab_alloc_node mm/slub.c:4164 [inline] kmem_cache_alloc_noprof+0x226/0x3d0 mm/slub.c:4171 alloc_buffer_head+0x21/0x160 fs/buffer.c:3015 jbd2_journal_write_metadata_buffer+0xc1/0x1160 fs/jbd2/journal.c:348 jbd2_journal_commit_transaction+0x135f/0x67e0 fs/jbd2/commit.c:663 kjournald2+0x1f8/0x760 fs/jbd2/journal.c:201 kthread+0x3af/0x750 kernel/kthread.c:464 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:148 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 net_ratelimit: 34444 callbacks suppressed bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:8e:aa:aa:13:d6:50, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)