bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P6849/1:b..l rcu: (detected by 0, t=10503 jiffies, g=16301, q=587 ncpus=2) task:syz.3.309 state:R running task stack:24600 pid:6849 tgid:6849 ppid:5846 task_flags:0x40064c flags:0x00004002 Call Trace: context_switch kernel/sched/core.c:5382 [inline] __schedule+0x116f/0x5de0 kernel/sched/core.c:6767 preempt_schedule_irq+0x51/0x90 kernel/sched/core.c:7090 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:lockdep_enabled kernel/locking/lockdep.c:124 [inline] RIP: 0010:lock_is_held_type+0x50/0x150 kernel/locking/lockdep.c:5931 Code: 65 8b 05 0b c8 36 08 85 c0 0f 85 ce 00 00 00 65 4c 8b 25 8b 8a 36 08 41 8b 94 24 ec 0a 00 00 85 d2 0f 85 b6 00 00 00 48 89 fd <41> 89 f6 9c 8f 04 24 fa 48 c7 c7 36 bf cd 8d 4d 8d ac 24 f0 0a 00 RSP: 0018:ffffc90003fa7280 EFLAGS: 00000246 RAX: 0000000000000000 RBX: ffffc90003fa7390 RCX: 0000000000000001 RDX: 0000000000000000 RSI: 00000000ffffffff RDI: ffff888034df0a48 RBP: ffff888034df0a48 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: ffff88802139da00 R13: 00000000ffffffff R14: ffffc90003fa73a2 R15: 0000000000000001 lock_is_held include/linux/lockdep.h:249 [inline] xa_entry include/linux/xarray.h:1220 [inline] xas_find+0x437/0x890 lib/xarray.c:1423 find_get_entry mm/filemap.c:2025 [inline] find_lock_entries+0x16e/0xbd0 mm/filemap.c:2129 shmem_undo_range+0x216/0x1150 mm/shmem.c:1107 shmem_truncate_range mm/shmem.c:1237 [inline] shmem_evict_inode+0x3a1/0xbe0 mm/shmem.c:1365 evict+0x3e3/0x920 fs/inode.c:810 iput_final fs/inode.c:1898 [inline] iput fs/inode.c:1924 [inline] iput+0x521/0x880 fs/inode.c:1910 dentry_unlink_inode+0x29c/0x480 fs/dcache.c:457 __dentry_kill+0x1d0/0x600 fs/dcache.c:660 dput.part.0+0x4b1/0x9b0 fs/dcache.c:902 dput+0x1f/0x30 fs/dcache.c:892 __fput+0x51c/0xb70 fs/file_table.c:473 task_work_run+0x14d/0x240 kernel/task_work.c:227 exit_task_work include/linux/task_work.h:40 [inline] do_exit+0xafb/0x2c30 kernel/exit.c:953 do_group_exit+0xd3/0x2a0 kernel/exit.c:1102 get_signal+0x2673/0x26d0 kernel/signal.c:3034 arch_do_signal_or_restart+0x8f/0x7d0 arch/x86/kernel/signal.c:337 exit_to_user_mode_loop kernel/entry/common.c:111 [inline] exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline] irqentry_exit_to_user_mode+0x13f/0x280 kernel/entry/common.c:231 asm_exc_general_protection+0x26/0x30 arch/x86/include/asm/idtentry.h:617 RIP: 0033:0x7f477298d171 RSP: 002b:0000200000000380 EFLAGS: 00010217 RAX: 0000000000000000 RBX: 00007f4772ba5fa0 RCX: 00007f477298d169 RDX: 00002000000003c0 RSI: 0000200000000380 RDI: 0000000000020000 RBP: 00007f4772a0e2a0 R08: 0000200000000440 R09: 0000200000000440 R10: 0000200000000400 R11: 0000000000000206 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f4772ba5fa0 R15: 00007fffeac6f778 net_ratelimit: 15486 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 bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, 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 bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) net_ratelimit: 16020 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 bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, 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 bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0)