ip6_tunnel: ip6tnl1 xmit: Local address not yet configured!
INFO: task syz-executor.1:2122 blocked for more than 140 seconds.
Not tainted 4.9.170+ #48
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor.1 D25016 2122 1 0x00000004
ffff8801d2752f80 ffff8801a0373700 ffff8801db721000 ffff8801c6e55f00
ffff8801db721018 ffff8801a6417b28 ffffffff82801a4e 0000000041b58ab3
ffff8801a6417aa0 00ffffff81bb61ac ffff8801db7218f0 1ffff10034c82f54
Call Trace:
[<00000000708b6b46>] schedule+0x92/0x1c0 kernel/sched/core.c:3546
[<000000007e95e576>] schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3579
[<000000007c6b5711>] __mutex_lock_common kernel/locking/mutex.c:582 [inline]
[<000000007c6b5711>] mutex_lock_nested+0x38d/0x920 kernel/locking/mutex.c:621
[<00000000290687ed>] __lo_release drivers/block/loop.c:1642 [inline]
[<00000000290687ed>] lo_release+0x84/0x1b0 drivers/block/loop.c:1665
[<000000006294910c>] __blkdev_put+0x461/0x840 fs/block_dev.c:1606
[<00000000543649c0>] blkdev_put+0x88/0x560 fs/block_dev.c:1671
[<0000000053d2301f>] blkdev_close+0x8b/0xb0 fs/block_dev.c:1678
[<00000000b7cf4290>] __fput+0x274/0x720 fs/file_table.c:208
[<000000000bb688cc>] ____fput+0x16/0x20 fs/file_table.c:244
[<00000000732a25ab>] task_work_run+0x108/0x180 kernel/task_work.c:116
[<00000000d4cf9cfd>] tracehook_notify_resume include/linux/tracehook.h:191 [inline]
[<00000000d4cf9cfd>] exit_to_usermode_loop+0x13b/0x160 arch/x86/entry/common.c:162
[<000000006e919a57>] prepare_exit_to_usermode arch/x86/entry/common.c:194 [inline]
[<000000006e919a57>] syscall_return_slowpath arch/x86/entry/common.c:263 [inline]
[<000000006e919a57>] do_syscall_64+0x3f7/0x570 arch/x86/entry/common.c:290
[<00000000dd68827b>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb
Showing all locks held in the system:
2 locks held by khungtaskd/24:
#0: (rcu_read_lock){......}, at: [<00000000daffb1fd>] check_hung_uninterruptible_tasks kernel/hung_task.c:169 [inline]
#0: (rcu_read_lock){......}, at: [<00000000daffb1fd>] watchdog+0x14b/0xaf0 kernel/hung_task.c:263
#1: (tasklist_lock){.+.+..}, at: [<00000000c16fa987>] debug_show_all_locks+0x7f/0x21f kernel/locking/lockdep.c:4339
1 lock held by rsyslogd/1901:
#0: (&f->f_pos_lock){+.+.+.}, at: [<000000007c52a8a0>] __fdget_pos+0xa8/0xd0 fs/file.c:782
2 locks held by getty/2029:
#0: (&tty->ldisc_sem){++++++}, at: [<000000006a705ea6>] ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:377
#1: (&ldata->atomic_read_lock){+.+...}, at: [<000000006c70d46c>] n_tty_read+0x1fe/0x1820 drivers/tty/n_tty.c:2156
3 locks held by syz-executor.1/2122:
#0: (&bdev->bd_mutex){+.+.+.}, at: [<00000000dfb853c5>] __blkdev_put+0xbb/0x840 fs/block_dev.c:1587
#1: (loop_index_mutex){+.+.+.}, at: [<00000000213a9fa1>] lo_release+0x1e/0x1b0 drivers/block/loop.c:1664
#2: (loop_ctl_mutex#2){+.+.+.}, at: [<00000000290687ed>] __lo_release drivers/block/loop.c:1642 [inline]
#2: (loop_ctl_mutex#2){+.+.+.}, at: [<00000000290687ed>] lo_release+0x84/0x1b0 drivers/block/loop.c:1665
2 locks held by syz-executor.2/2135:
#0: (&bdev->bd_mutex){+.+.+.}, at: [<00000000f5d31695>] __blkdev_get+0x10e/0xeb0 fs/block_dev.c:1273
#1: (loop_index_mutex){+.+.+.}, at: [<00000000c9a03a4a>] lo_open+0x1d/0xb0 drivers/block/loop.c:1622
2 locks held by syz-executor.5/3714:
#0: (loop_ctl_mutex/1){+.+.+.}, at: [<00000000e45e9c88>] lo_ioctl+0x85/0x1a10 drivers/block/loop.c:1405
#1: (&bdev->bd_mutex){+.+.+.}, at: [<00000000d48088b7>] blkdev_reread_part+0x1f/0x40 block/ioctl.c:189
1 lock held by syz-executor.3/4803:
#0: (&bdev->bd_mutex){+.+.+.}, at: [<00000000f5d31695>] __blkdev_get+0x10e/0xeb0 fs/block_dev.c:1273
2 locks held by syz-executor.4/8775:
#0: (&tty->ldisc_sem){++++++}, at: [<000000006a705ea6>] ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:377
#1: (&tty->atomic_write_lock){+.+.+.}, at: [<00000000be8ebcdf>] tty_write_lock+0x20/0x60 drivers/tty/tty_io.c:1109
2 locks held by blkid/19692:
#0: (&bdev->bd_mutex){+.+.+.}, at: [<00000000f5d31695>] __blkdev_get+0x10e/0xeb0 fs/block_dev.c:1273
#1: (loop_index_mutex){+.+.+.}, at: [<00000000c9a03a4a>] lo_open+0x1d/0xb0 drivers/block/loop.c:1622
2 locks held by blkid/19693:
#0: (&bdev->bd_mutex){+.+.+.}, at: [<00000000f5d31695>] __blkdev_get+0x10e/0xeb0 fs/block_dev.c:1273
#1: (loop_index_mutex){+.+.+.}, at: [<00000000c9a03a4a>] lo_open+0x1d/0xb0 drivers/block/loop.c:1622
1 lock held by blkid/19694:
#0: (&bdev->bd_mutex){+.+.+.}, at: [<00000000f5d31695>] __blkdev_get+0x10e/0xeb0 fs/block_dev.c:1273
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 24 Comm: khungtaskd Not tainted 4.9.170+ #48
ffff8801d98d7cc8 ffffffff81b4fb21 0000000000000000 0000000000000000
0000000000000000 ffffffff81097401 dffffc0000000000 ffff8801d98d7d00
ffffffff81b5adbc 0000000000000000 0000000000000000 0000000000000000
Call Trace:
[<00000000f9d9b473>] __dump_stack lib/dump_stack.c:15 [inline]
[<00000000f9d9b473>] dump_stack+0xc1/0x120 lib/dump_stack.c:51
[<00000000533c28cf>] nmi_cpu_backtrace.cold+0x47/0x87 lib/nmi_backtrace.c:99
[<000000009ecf4388>] nmi_trigger_cpumask_backtrace+0x124/0x155 lib/nmi_backtrace.c:60
[<000000003ccb053f>] arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:37
[<0000000061ae2f15>] trigger_all_cpu_backtrace include/linux/nmi.h:58 [inline]
[<0000000061ae2f15>] check_hung_task kernel/hung_task.c:126 [inline]
[<0000000061ae2f15>] check_hung_uninterruptible_tasks kernel/hung_task.c:183 [inline]
[<0000000061ae2f15>] watchdog+0x670/0xaf0 kernel/hung_task.c:263
[<000000004405a8b1>] kthread+0x278/0x310 kernel/kthread.c:211
[<00000000a8ec67b7>] ret_from_fork+0x5c/0x70 arch/x86/entry/entry_64.S:373
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1 skipped: idling at pc 0xffffffff82810ac2