ip6_tunnel: l0 xmit: Local address not yet configured! INFO: task syz-executor.3:3030 blocked for more than 140 seconds. Not tainted 4.14.99+ #11 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.3 D28456 3030 8176 0x90000004 Call Trace: schedule+0x92/0x1c0 kernel/sched/core.c:3490 __rwsem_down_read_failed_common kernel/locking/rwsem-xadd.c:269 [inline] rwsem_down_read_failed+0x21f/0x3c0 kernel/locking/rwsem-xadd.c:286 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:510 [inline] do_exit+0x503/0x2960 kernel/exit.c:860 INFO: task syz-executor.3:3033 blocked for more than 140 seconds. Not tainted 4.14.99+ #11 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.3 D29672 3033 8176 0x90000004 Call Trace: schedule+0x92/0x1c0 kernel/sched/core.c:3490 __rwsem_down_read_failed_common kernel/locking/rwsem-xadd.c:269 [inline] rwsem_down_read_failed+0x21f/0x3c0 kernel/locking/rwsem-xadd.c:286 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:510 [inline] do_exit+0x503/0x2960 kernel/exit.c:860 INFO: task syz-executor.3:3035 blocked for more than 140 seconds. Not tainted 4.14.99+ #11 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.3 D29088 3035 8176 0x90000004 Call Trace: schedule+0x92/0x1c0 kernel/sched/core.c:3490 __rwsem_down_read_failed_common kernel/locking/rwsem-xadd.c:269 [inline] rwsem_down_read_failed+0x21f/0x3c0 kernel/locking/rwsem-xadd.c:286 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:510 [inline] do_exit+0x503/0x2960 kernel/exit.c:860 Showing all locks held in the system: 1 lock held by khungtaskd/23: #0: (tasklist_lock){.+.+}, at: [] debug_show_all_locks+0x7c/0x21a kernel/locking/lockdep.c:4541 1 lock held by rsyslogd/1618: #0: (&f->f_pos_lock){+.+.}, at: [] __fdget_pos+0xa6/0xc0 fs/file.c:768 2 locks held by getty/1746: #0: (&tty->ldisc_sem){++++}, at: [] tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:275 #1: (&ldata->atomic_read_lock){+.+.}, at: [] n_tty_read+0x1f7/0x1700 drivers/tty/n_tty.c:2156 1 lock held by syz-executor.3/3030: #0: (&mm->mmap_sem){++++}, at: [] exit_mm kernel/exit.c:510 [inline] #0: (&mm->mmap_sem){++++}, at: [] do_exit+0x503/0x2960 kernel/exit.c:860 1 lock held by syz-executor.3/3033: #0: (&mm->mmap_sem){++++}, at: [] exit_mm kernel/exit.c:510 [inline] #0: (&mm->mmap_sem){++++}, at: [] do_exit+0x503/0x2960 kernel/exit.c:860 1 lock held by syz-executor.3/3035: #0: (&mm->mmap_sem){++++}, at: [] exit_mm kernel/exit.c:510 [inline] #0: (&mm->mmap_sem){++++}, at: [] do_exit+0x503/0x2960 kernel/exit.c:860 ============================================= NMI backtrace for cpu 0 CPU: 0 PID: 23 Comm: khungtaskd Not tainted 4.14.99+ #11 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 0 to CPUs 1: NMI backtrace for cpu 1 skipped: idling at pc 0xffffffff8c241052