ip6_tunnel: J xmit: Local address not yet configured!
ip6_tunnel: J xmit: Local address not yet configured!
INFO: task syz-executor.3:25271 blocked for more than 140 seconds.
      Not tainted 4.14.123+ #2
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor.3  D28696 25271   3092 0x80000004
Call Trace:
 schedule+0x92/0x1c0 kernel/sched/core.c:3498
 __rwsem_down_read_failed_common kernel/locking/rwsem-xadd.c:292 [inline]
 rwsem_down_read_failed+0x21f/0x3c0 kernel/locking/rwsem-xadd.c:309
 call_rwsem_down_read_failed+0x14/0x30 arch/x86/lib/rwsem.S:94
 __down_read arch/x86/include/asm/rwsem.h:66 [inline]
 down_read+0x45/0xa0 kernel/locking/rwsem.c:26
 exit_mm kernel/exit.c:511 [inline]
 do_exit+0x503/0x2960 kernel/exit.c:861
INFO: task syz-executor.3:25289 blocked for more than 140 seconds.
      Not tainted 4.14.123+ #2
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor.3  D28920 25289   3092 0x80000004
Call Trace:
 schedule+0x92/0x1c0 kernel/sched/core.c:3498
 __rwsem_down_read_failed_common kernel/locking/rwsem-xadd.c:292 [inline]
 rwsem_down_read_failed+0x21f/0x3c0 kernel/locking/rwsem-xadd.c:309
 call_rwsem_down_read_failed+0x14/0x30 arch/x86/lib/rwsem.S:94
 __down_read arch/x86/include/asm/rwsem.h:66 [inline]
 down_read+0x45/0xa0 kernel/locking/rwsem.c:26
 exit_mm kernel/exit.c:511 [inline]
 do_exit+0x503/0x2960 kernel/exit.c:861

Showing all locks held in the system:
1 lock held by khungtaskd/23:
 #0:  (tasklist_lock){.+.+}, at: [<000000001ba6c492>] debug_show_all_locks+0x7c/0x21a kernel/locking/lockdep.c:4541
2 locks held by getty/1753:
 #0:  (&tty->ldisc_sem){++++}, at: [<00000000373de877>] tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:284
 #1:  (&ldata->atomic_read_lock){+.+.}, at: [<000000000e0e46d8>] n_tty_read+0x1f7/0x1700 drivers/tty/n_tty.c:2156
1 lock held by syz-executor.3/25271:
 #0:  (&mm->mmap_sem){++++}, at: [<00000000ffbc6809>] exit_mm kernel/exit.c:511 [inline]
 #0:  (&mm->mmap_sem){++++}, at: [<00000000ffbc6809>] do_exit+0x503/0x2960 kernel/exit.c:861
1 lock held by syz-executor.3/25289:
 #0:  (&mm->mmap_sem){++++}, at: [<00000000ffbc6809>] exit_mm kernel/exit.c:511 [inline]
 #0:  (&mm->mmap_sem){++++}, at: [<00000000ffbc6809>] do_exit+0x503/0x2960 kernel/exit.c:861

=============================================

NMI backtrace for cpu 1
CPU: 1 PID: 23 Comm: khungtaskd Not tainted 4.14.123+ #2
Call Trace:
 __dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0xb9/0x10e lib/dump_stack.c:53
 nmi_cpu_backtrace.cold+0x47/0x86 lib/nmi_backtrace.c:101
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 1623 Comm: rs:main Q:Reg Not tainted 4.14.123+ #2
task: 00000000a1074f9c task.stack: 00000000c4d7f9a9
RIP: 0010:perf_trace_lock+0xa/0x4e0 include/trace/events/lock.h:39
RSP: 0018:ffff8881d60b7c50 EFLAGS: 00000082
RAX: dffffc0000000000 RBX: 1ffff1103ac16f8e RCX: 1ffffffff6cc27a8
RDX: dffffc0000000000 RSI: ffffffffb64d3c20 RDI: ffffffffb64c0720
RBP: ffff8881c68d4e68 R08: 0000000000000001 R09: 0000000000000000
R10: ffff8881d4a84f28 R11: 0000000000000001 R12: ffffffffb64d3c20
R13: ffffffffb41f3f30 R14: ffff8881d53c8a10 R15: dffffc0000000000
FS:  00007f1a11a63700(0000) GS:ffff8881db800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f2fa90d5000 CR3: 00000001d65f4004 CR4: 00000000001606b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 trace_lock_release include/trace/events/lock.h:58 [inline]
 lock_release+0x4d8/0x730 kernel/locking/lockdep.c:4009
Code: ff ff e9 18 fd ff ff 48 89 df e8 a2 ea 33 00 e9 cc fe ff ff 0f 1f 00 66 2e 0f 1f 84 00 00 00 00 00 48 ba 00 00 00 00 00 fc ff df <55> 48 89 e5 41 57 41 56 4c 8d 7d d8 49 89 fe 48 83 ef 80 41 55