ip6_tunnel:  xmit: Local address not yet configured! ip6_tunnel: ip6gre1 xmit: Local address not yet configured! INFO: task syz-executor3:15523 blocked for more than 140 seconds. Not tainted 4.20.0-rc2+ #295 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor3 D23400 15523 6050 0x00000004 Call Trace: context_switch kernel/sched/core.c:2831 [inline] __schedule+0x8cf/0x21d0 kernel/sched/core.c:3472 schedule+0xfe/0x460 kernel/sched/core.c:3516 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3574 __mutex_lock_common kernel/locking/mutex.c:1002 [inline] __mutex_lock+0xaff/0x16f0 kernel/locking/mutex.c:1072 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1087 __pipe_lock fs/pipe.c:83 [inline] pipe_release+0x4e/0x270 fs/pipe.c:564 __fput+0x385/0xa30 fs/file_table.c:278 ____fput+0x15/0x20 fs/file_table.c:309 task_work_run+0x1e8/0x2a0 kernel/task_work.c:113 tracehook_notify_resume include/linux/tracehook.h:188 [inline] exit_to_usermode_loop+0x318/0x380 arch/x86/entry/common.c:166 prepare_exit_to_usermode arch/x86/entry/common.c:197 [inline] syscall_return_slowpath arch/x86/entry/common.c:268 [inline] do_syscall_64+0x6be/0x820 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x411021 Code: 83 c4 40 c3 48 8d 05 79 fa 48 00 48 89 04 24 48 c7 44 24 08 0d 00 00 00 e8 ac a8 01 00 0f 0b 48 8d 05 5e fa 48 00 48 89 04 24 <48> c7 44 24 08 0d 00 00 00 e8 91 a8 01 00 0f 0b e8 1a 8f 04 00 e9 RSP: 002b:00007ffd7615f300 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000009 RCX: 0000000000411021 RDX: 0000000000000000 RSI: 00000000007313e0 RDI: 0000000000000008 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 00007ffd7615f230 R11: 0000000000000293 R12: 0000000000000000 R13: 0000000000000001 R14: 0000000000000520 R15: 0000000000000003 INFO: task syz-executor3:15526 blocked for more than 140 seconds. Not tainted 4.20.0-rc2+ #295 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor3 D24392 15526 6050 0x00000004 Call Trace: context_switch kernel/sched/core.c:2831 [inline] __schedule+0x8cf/0x21d0 kernel/sched/core.c:3472 schedule+0xfe/0x460 kernel/sched/core.c:3516 schedule_timeout+0x1cc/0x260 kernel/time/timer.c:1780 do_wait_for_common kernel/sched/completion.c:83 [inline] __wait_for_common kernel/sched/completion.c:104 [inline] wait_for_common kernel/sched/completion.c:115 [inline] wait_for_completion+0x427/0x8a0 kernel/sched/completion.c:136 crypto_wait_req include/linux/crypto.h:583 [inline] _aead_recvmsg crypto/algif_aead.c:313 [inline] aead_recvmsg+0x16a2/0x2350 crypto/algif_aead.c:334 aead_recvmsg_nokey+0x69/0x90 crypto/algif_aead.c:452 sock_recvmsg_nosec net/socket.c:794 [inline] sock_recvmsg+0xd0/0x110 net/socket.c:801 ___sys_recvmsg+0x2b6/0x680 net/socket.c:2278 __sys_recvmsg+0x11a/0x280 net/socket.c:2327 __do_sys_recvmsg net/socket.c:2337 [inline] __se_sys_recvmsg net/socket.c:2334 [inline] __x64_sys_recvmsg+0x78/0xb0 net/socket.c:2334 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457569 Code: 83 c4 18 c3 e8 d8 64 00 00 48 8b 04 24 48 8b 4c 24 08 48 89 01 e8 d7 2d fc ff e8 22 7a fc ff b8 02 00 00 00 48 8d 0d ea 55 0b <01> 87 01 8b 05 e2 55 0b 01 83 f8 01 0f 85 8a 00 00 00 b8 01 00 00 RSP: 002b:00007fc72bf41c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002f RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457569 RDX: 0000000000000000 RSI: 0000000020000300 RDI: 0000000000000006 RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fc72bf426d4 R13: 00000000004c3551 R14: 00000000004d54d8 R15: 00000000ffffffff INFO: task syz-executor3:15577 blocked for more than 140 seconds. Not tainted 4.20.0-rc2+ #295 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor3 D25208 15577 6050 0x00000004 Call Trace: context_switch kernel/sched/core.c:2831 [inline] __schedule+0x8cf/0x21d0 kernel/sched/core.c:3472 schedule+0xfe/0x460 kernel/sched/core.c:3516 __lock_sock+0x1fb/0x350 net/core/sock.c:2256 lock_sock_nested+0xfe/0x120 net/core/sock.c:2778 lock_sock include/net/sock.h:1492 [inline] aead_check_key.isra.6+0x26/0x270 crypto/algif_aead.c:390 aead_sendpage_nokey+0x4a/0xa0 crypto/algif_aead.c:436 kernel_sendpage+0x93/0xf0 net/socket.c:3330 sock_sendpage+0x8c/0xc0 net/socket.c:846 pipe_to_sendpage+0x2d0/0x400 fs/splice.c:452 splice_from_pipe_feed fs/splice.c:503 [inline] __splice_from_pipe+0x38b/0x7c0 fs/splice.c:627 splice_from_pipe+0x1ec/0x340 fs/splice.c:662 generic_splice_sendpage+0x3c/0x50 fs/splice.c:832 do_splice_from fs/splice.c:851 [inline] do_splice+0x64a/0x1430 fs/splice.c:1147 __do_sys_splice fs/splice.c:1414 [inline] __se_sys_splice fs/splice.c:1394 [inline] __x64_sys_splice+0x2c1/0x330 fs/splice.c:1394 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457569 Code: 83 c4 18 c3 e8 d8 64 00 00 48 8b 04 24 48 8b 4c 24 08 48 89 01 e8 d7 2d fc ff e8 22 7a fc ff b8 02 00 00 00 48 8d 0d ea 55 0b <01> 87 01 8b 05 e2 55 0b 01 83 f8 01 0f 85 8a 00 00 00 b8 01 00 00 RSP: 002b:00007fc72beffc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000113 RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 0000000000457569 RDX: 0000000000000006 RSI: 0000000000000000 RDI: 0000000000000007 RBP: 000000000072c040 R08: 0000020000000003 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fc72bf006d4 R13: 00000000004c52bb R14: 00000000004d8100 R15: 00000000ffffffff INFO: task syz-executor3:15578 blocked for more than 140 seconds. Not tainted 4.20.0-rc2+ #295 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor3 D26104 15578 6050 0x00000004 Call Trace: context_switch kernel/sched/core.c:2831 [inline] __schedule+0x8cf/0x21d0 kernel/sched/core.c:3472 schedule+0xfe/0x460 kernel/sched/core.c:3516 __lock_sock+0x1fb/0x350 net/core/sock.c:2256 lock_sock_nested+0xfe/0x120 net/core/sock.c:2778 lock_sock include/net/sock.h:1492 [inline] aead_check_key.isra.6+0x26/0x270 crypto/algif_aead.c:390 aead_recvmsg_nokey+0x44/0x90 crypto/algif_aead.c:448 sock_recvmsg_nosec net/socket.c:794 [inline] sock_recvmsg+0xd0/0x110 net/socket.c:801 ___sys_recvmsg+0x2b6/0x680 net/socket.c:2278 __sys_recvmsg+0x11a/0x280 net/socket.c:2327 __do_sys_recvmsg net/socket.c:2337 [inline] __se_sys_recvmsg net/socket.c:2334 [inline] __x64_sys_recvmsg+0x78/0xb0 net/socket.c:2334 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457569 Code: 83 c4 18 c3 e8 d8 64 00 00 48 8b 04 24 48 8b 4c 24 08 48 89 01 e8 d7 2d fc ff e8 22 7a fc ff b8 02 00 00 00 48 8d 0d ea 55 0b <01> 87 01 8b 05 e2 55 0b 01 83 f8 01 0f 85 8a 00 00 00 b8 01 00 00 RSP: 002b:00007fc72bedec78 EFLAGS: 00000246 ORIG_RAX: 000000000000002f RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457569 RDX: 0000000000000000 RSI: 0000000020000300 RDI: 0000000000000006 RBP: 000000000072c0e0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fc72bedf6d4 R13: 00000000004c3551 R14: 00000000004d54d8 R15: 00000000ffffffff Showing all locks held in the system: 2 locks held by kworker/1:0/17: #0: 0000000060f7a191 ((wq_completion)"events"){+.+.}, at: __write_once_size include/linux/compiler.h:209 [inline] #0: 0000000060f7a191 ((wq_completion)"events"){+.+.}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: 0000000060f7a191 ((wq_completion)"events"){+.+.}, at: atomic64_set include/asm-generic/atomic-instrumented.h:40 [inline] #0: 0000000060f7a191 ((wq_completion)"events"){+.+.}, at: atomic_long_set include/asm-generic/atomic-long.h:59 [inline] #0: 0000000060f7a191 ((wq_completion)"events"){+.+.}, at: set_work_data kernel/workqueue.c:617 [inline] #0: 0000000060f7a191 ((wq_completion)"events"){+.+.}, at: set_work_pool_and_clear_pending kernel/workqueue.c:644 [inline] #0: 0000000060f7a191 ((wq_completion)"events"){+.+.}, at: process_one_work+0xb43/0x1c40 kernel/workqueue.c:2124 #1: 000000003e4df968 ((work_completion)(&smc->tcp_listen_work)){+.+.}, at: process_one_work+0xb9a/0x1c40 kernel/workqueue.c:2128 2 locks held by kworker/1:1/22: #0: 0000000060f7a191 ((wq_completion)"events"){+.+.}, at: __write_once_size include/linux/compiler.h:209 [inline] #0: 0000000060f7a191 ((wq_completion)"events"){+.+.}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: 0000000060f7a191 ((wq_completion)"events"){+.+.}, at: atomic64_set include/asm-generic/atomic-instrumented.h:40 [inline] #0: 0000000060f7a191 ((wq_completion)"events"){+.+.}, at: atomic_long_set include/asm-generic/atomic-long.h:59 [inline] #0: 0000000060f7a191 ((wq_completion)"events"){+.+.}, at: set_work_data kernel/workqueue.c:617 [inline] #0: 0000000060f7a191 ((wq_completion)"events"){+.+.}, at: set_work_pool_and_clear_pending kernel/workqueue.c:644 [inline] #0: 0000000060f7a191 ((wq_completion)"events"){+.+.}, at: process_one_work+0xb43/0x1c40 kernel/workqueue.c:2124 #1: 00000000a5779c53 ((work_completion)(&smc->tcp_listen_work)){+.+.}, at: process_one_work+0xb9a/0x1c40 kernel/workqueue.c:2128 1 lock held by khungtaskd/1000: #0: 000000006c605d36 (rcu_read_lock){....}, at: debug_show_all_locks+0xd0/0x424 kernel/locking/lockdep.c:4379 1 lock held by rsyslogd/5855: #0: 0000000023a77863 (&f->f_pos_lock){+.+.}, at: __fdget_pos+0x1bb/0x200 fs/file.c:766 2 locks held by getty/5945: #0: 00000000c2438758 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x32/0x40 drivers/tty/tty_ldsem.c:353 #1: 000000008774efb6 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x335/0x1e80 drivers/tty/n_tty.c:2154 2 locks held by getty/5946: #0: 000000000d4ddd70 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x32/0x40 drivers/tty/tty_ldsem.c:353 #1: 00000000ea40496b (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x335/0x1e80 drivers/tty/n_tty.c:2154 2 locks held by getty/5947: #0: 00000000a7a34805 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x32/0x40 drivers/tty/tty_ldsem.c:353 #1: 000000005880f66f (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x335/0x1e80 drivers/tty/n_tty.c:2154 2 locks held by getty/5948: #0: 0000000028d6eaaa (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x32/0x40 drivers/tty/tty_ldsem.c:353 #1: 0000000046d55469 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x335/0x1e80 drivers/tty/n_tty.c:2154 2 locks held by getty/5949: #0: 0000000029edacf3 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x32/0x40 drivers/tty/tty_ldsem.c:353 #1: 00000000ea78b23e (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x335/0x1e80 drivers/tty/n_tty.c:2154 2 locks held by getty/5950: #0: 000000001750b105 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x32/0x40 drivers/tty/tty_ldsem.c:353 #1: 00000000b0dbeb2c (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x335/0x1e80 drivers/tty/n_tty.c:2154 2 locks held by getty/5951: #0: 00000000b2afebfb (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x32/0x40 drivers/tty/tty_ldsem.c:353 #1: 00000000811c0829 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x335/0x1e80 drivers/tty/n_tty.c:2154 1 lock held by syz-executor3/15523: #0: 00000000ee8d4eb6 (&pipe->mutex/1){+.+.}, at: __pipe_lock fs/pipe.c:83 [inline] #0: 00000000ee8d4eb6 (&pipe->mutex/1){+.+.}, at: pipe_release+0x4e/0x270 fs/pipe.c:564 1 lock held by syz-executor3/15526: #0: 000000002933da99 (sk_lock-AF_ALG){+.+.}, at: lock_sock include/net/sock.h:1492 [inline] #0: 000000002933da99 (sk_lock-AF_ALG){+.+.}, at: aead_recvmsg+0xbb/0x2350 crypto/algif_aead.c:332 1 lock held by syz-executor3/15577: #0: 00000000ee8d4eb6 (&pipe->mutex/1){+.+.}, at: pipe_lock_nested fs/pipe.c:62 [inline] #0: 00000000ee8d4eb6 (&pipe->mutex/1){+.+.}, at: pipe_lock+0x6e/0x80 fs/pipe.c:70 ============================================= NMI backtrace for cpu 1 CPU: 1 PID: 1000 Comm: khungtaskd Not tainted 4.20.0-rc2+ #295 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x244/0x39d lib/dump_stack.c:113 nmi_cpu_backtrace.cold.2+0x5c/0xa1 lib/nmi_backtrace.c:101 nmi_trigger_cpumask_backtrace+0x1e8/0x22a lib/nmi_backtrace.c:62 arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:38 trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:205 [inline] watchdog+0xb51/0x1060 kernel/hung_task.c:289 kthread+0x35a/0x440 kernel/kthread.c:246 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 6331 Comm: kworker/0:3 Not tainted 4.20.0-rc2+ #295 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: events_power_efficient gc_worker RIP: 0010:lock_acquire+0x92/0x520 kernel/locking/lockdep.c:3833 Code: 48 8b 14 25 40 ee 01 00 c7 00 f1 f1 f1 f1 48 8d ba 7c 08 00 00 c7 40 04 00 f2 f2 f2 c7 40 08 f2 f2 f2 f2 c7 40 0c 00 f2 f2 f2 <65> 48 8b 04 25 28 00 00 00 48 89 45 d0 31 c0 48 89 f8 48 c1 e8 03 RSP: 0018:ffff8881957a73f8 EFLAGS: 00000092 RAX: ffffed1032af4e84 RBX: 1ffff11032af4e84 RCX: dffffc0000000000 RDX: ffff8881d8be6100 RSI: 0000000000000000 RDI: ffff8881d8be697c RBP: ffff8881957a74e8 R08: 0000000000000001 R09: 0000000000000000 R10: ffffed103b5c5b67 R11: ffff8881dae2db3b R12: 0000000000000000 R13: 0000000000000002 R14: 0000000000000001 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8881dae00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffffff600400 CR3: 00000001c5de2000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: seqcount_lockdep_reader_access include/linux/seqlock.h:81 [inline] read_seqcount_begin include/linux/seqlock.h:164 [inline] nf_conntrack_get_ht include/net/netfilter/nf_conntrack.h:302 [inline] gc_worker+0x2b3/0x1130 net/netfilter/nf_conntrack_core.c:1160 process_one_work+0xc90/0x1c40 kernel/workqueue.c:2153 worker_thread+0x17f/0x1390 kernel/workqueue.c:2296 kthread+0x35a/0x440 kernel/kthread.c:246 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352