ip6_tunnel: file0 xmit: Local address not yet configured! ip6_tunnel: ip6tnl4 xmit: Local address not yet configured! ip6_tunnel: ip6tnl3 xmit: Local address not yet configured! ip6_tunnel: ip6tnl1 xmit: Local address not yet configured! INFO: task syz-executor.2:1868 blocked for more than 140 seconds. Not tainted 4.14.129+ #11 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.2 D25160 1868 1848 0x00000000 Call Trace: schedule+0x92/0x1c0 kernel/sched/core.c:3498 __rwsem_down_write_failed_common kernel/locking/rwsem-xadd.c:588 [inline] rwsem_down_write_failed+0x3b1/0x760 kernel/locking/rwsem-xadd.c:617 call_rwsem_down_write_failed+0x13/0x20 arch/x86/lib/rwsem.S:105 __down_write arch/x86/include/asm/rwsem.h:126 [inline] down_write+0x4f/0x90 kernel/locking/rwsem.c:56 i_mmap_lock_write include/linux/fs.h:473 [inline] dup_mmap kernel/fork.c:684 [inline] dup_mm kernel/fork.c:1211 [inline] copy_mm kernel/fork.c:1266 [inline] copy_process.part.0+0x3eab/0x65d0 kernel/fork.c:1789 copy_process kernel/fork.c:1598 [inline] _do_fork+0x193/0xcc0 kernel/fork.c:2094 do_syscall_64+0x19b/0x510 arch/x86/entry/common.c:292 INFO: task syz-executor.1:32557 blocked for more than 140 seconds. Not tainted 4.14.129+ #11 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.1 D27472 32557 1856 0x80000004 Call Trace: schedule+0x92/0x1c0 kernel/sched/core.c:3498 __rwsem_down_write_failed_common kernel/locking/rwsem-xadd.c:588 [inline] rwsem_down_write_failed+0x3b1/0x760 kernel/locking/rwsem-xadd.c:617 call_rwsem_down_write_failed+0x13/0x20 arch/x86/lib/rwsem.S:105 __down_write arch/x86/include/asm/rwsem.h:126 [inline] down_write+0x4f/0x90 kernel/locking/rwsem.c:56 i_mmap_lock_write include/linux/fs.h:473 [inline] unlink_file_vma+0x6e/0xa0 mm/mmap.c:158 free_pgtables+0xb3/0x1c0 mm/memory.c:644 exit_mmap+0x222/0x440 mm/mmap.c:3073 __mmput kernel/fork.c:938 [inline] mmput kernel/fork.c:959 [inline] mmput+0xc8/0x350 kernel/fork.c:954 exit_mm kernel/exit.c:545 [inline] do_exit+0x84e/0x2960 kernel/exit.c:861 INFO: task syz-executor.5:32610 blocked for more than 140 seconds. Not tainted 4.14.129+ #11 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.5 D27256 32610 16631 0x80000000 Call Trace: schedule+0x92/0x1c0 kernel/sched/core.c:3498 __rwsem_down_write_failed_common kernel/locking/rwsem-xadd.c:588 [inline] rwsem_down_write_failed+0x3b1/0x760 kernel/locking/rwsem-xadd.c:617 call_rwsem_down_write_failed+0x13/0x20 arch/x86/lib/rwsem.S:105 __down_write arch/x86/include/asm/rwsem.h:126 [inline] down_write+0x4f/0x90 kernel/locking/rwsem.c:56 i_mmap_lock_write include/linux/fs.h:473 [inline] unlink_file_vma+0x6e/0xa0 mm/mmap.c:158 free_pgtables+0xb3/0x1c0 mm/memory.c:644 exit_mmap+0x222/0x440 mm/mmap.c:3073 __mmput kernel/fork.c:938 [inline] mmput kernel/fork.c:959 [inline] mmput+0xc8/0x350 kernel/fork.c:954 exit_mm kernel/exit.c:545 [inline] do_exit+0x84e/0x2960 kernel/exit.c:861 INFO: task syz-executor.4:32608 blocked for more than 140 seconds. Not tainted 4.14.129+ #11 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.4 D28344 32608 26140 0x80000000 Call Trace: schedule+0x92/0x1c0 kernel/sched/core.c:3498 __rwsem_down_write_failed_common kernel/locking/rwsem-xadd.c:588 [inline] rwsem_down_write_failed+0x3b1/0x760 kernel/locking/rwsem-xadd.c:617 call_rwsem_down_write_failed+0x13/0x20 arch/x86/lib/rwsem.S:105 __down_write arch/x86/include/asm/rwsem.h:126 [inline] down_write+0x4f/0x90 kernel/locking/rwsem.c:56 i_mmap_lock_write include/linux/fs.h:473 [inline] unlink_file_vma+0x6e/0xa0 mm/mmap.c:158 free_pgtables+0xb3/0x1c0 mm/memory.c:644 exit_mmap+0x222/0x440 mm/mmap.c:3073 __mmput kernel/fork.c:938 [inline] mmput kernel/fork.c:959 [inline] mmput+0xc8/0x350 kernel/fork.c:954 exit_mm kernel/exit.c:545 [inline] do_exit+0x84e/0x2960 kernel/exit.c:861 INFO: task syz-executor.0:32605 blocked for more than 140 seconds. Not tainted 4.14.129+ #11 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.0 D28944 32605 32598 0x80000004 Call Trace: schedule+0x92/0x1c0 kernel/sched/core.c:3498 __rwsem_down_write_failed_common kernel/locking/rwsem-xadd.c:588 [inline] rwsem_down_write_failed+0x3b1/0x760 kernel/locking/rwsem-xadd.c:617 call_rwsem_down_write_failed+0x13/0x20 arch/x86/lib/rwsem.S:105 __down_write arch/x86/include/asm/rwsem.h:126 [inline] down_write+0x4f/0x90 kernel/locking/rwsem.c:56 i_mmap_lock_write include/linux/fs.h:473 [inline] unlink_file_vma+0x6e/0xa0 mm/mmap.c:158 free_pgtables+0xb3/0x1c0 mm/memory.c:644 exit_mmap+0x222/0x440 mm/mmap.c:3073 __mmput kernel/fork.c:938 [inline] mmput kernel/fork.c:959 [inline] mmput+0xc8/0x350 kernel/fork.c:954 exit_mm kernel/exit.c:545 [inline] do_exit+0x84e/0x2960 kernel/exit.c:861 Showing all locks held in the system: 1 lock held by khungtaskd/23: #0: (tasklist_lock){.+.?}, at: [<00000000b416d6ca>] debug_show_all_locks+0x7c/0x21a kernel/locking/lockdep.c:4541 2 locks held by getty/1761: #0: (&tty->ldisc_sem){++++}, at: [<00000000b941a0a1>] tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:284 #1: (&ldata->atomic_read_lock){+.+.}, at: [<00000000faab479d>] n_tty_read+0x1f7/0x1700 drivers/tty/n_tty.c:2156 1 lock held by syz-executor.0/1842: #0: (&mapping->i_mmap_rwsem){++++}, at: [<00000000c6966861>] i_mmap_lock_write include/linux/fs.h:473 [inline] #0: (&mapping->i_mmap_rwsem){++++}, at: [<00000000c6966861>] unlink_file_vma+0x6e/0xa0 mm/mmap.c:158 1 lock held by syz-executor.1/1845: #0: (&mapping->i_mmap_rwsem){++++}, at: [<00000000c6966861>] i_mmap_lock_write include/linux/fs.h:473 [inline] #0: (&mapping->i_mmap_rwsem){++++}, at: [<00000000c6966861>] unlink_file_vma+0x6e/0xa0 mm/mmap.c:158 1 lock held by syz-executor.2/1848: #0: (&mapping->i_mmap_rwsem){++++}, at: [<00000000c6966861>] i_mmap_lock_write include/linux/fs.h:473 [inline] #0: (&mapping->i_mmap_rwsem){++++}, at: [<00000000c6966861>] unlink_file_vma+0x6e/0xa0 mm/mmap.c:158 4 locks held by syz-executor.2/1868: #0: (&dup_mmap_sem){.+.+}, at: [<00000000d3bebd60>] dup_mmap kernel/fork.c:609 [inline] #0: (&dup_mmap_sem){.+.+}, at: [<00000000d3bebd60>] dup_mm kernel/fork.c:1211 [inline] #0: (&dup_mmap_sem){.+.+}, at: [<00000000d3bebd60>] copy_mm kernel/fork.c:1266 [inline] #0: (&dup_mmap_sem){.+.+}, at: [<00000000d3bebd60>] copy_process.part.0+0x39db/0x65d0 kernel/fork.c:1789 #1: (&mm->mmap_sem){++++}, at: [<0000000005d408eb>] dup_mmap kernel/fork.c:610 [inline] #1: (&mm->mmap_sem){++++}, at: [<0000000005d408eb>] dup_mm kernel/fork.c:1211 [inline] #1: (&mm->mmap_sem){++++}, at: [<0000000005d408eb>] copy_mm kernel/fork.c:1266 [inline] #1: (&mm->mmap_sem){++++}, at: [<0000000005d408eb>] copy_process.part.0+0x39f7/0x65d0 kernel/fork.c:1789 #2: (&mm->mmap_sem/1){+.+.}, at: [<00000000e907b18e>] dup_mmap kernel/fork.c:619 [inline] #2: (&mm->mmap_sem/1){+.+.}, at: [<00000000e907b18e>] dup_mm kernel/fork.c:1211 [inline] #2: (&mm->mmap_sem/1){+.+.}, at: [<00000000e907b18e>] copy_mm kernel/fork.c:1266 [inline] #2: (&mm->mmap_sem/1){+.+.}, at: [<00000000e907b18e>] copy_process.part.0+0x3a3f/0x65d0 kernel/fork.c:1789 #3: (&mapping->i_mmap_rwsem){++++}, at: [<000000004ab64178>] i_mmap_lock_write include/linux/fs.h:473 [inline] #3: (&mapping->i_mmap_rwsem){++++}, at: [<000000004ab64178>] dup_mmap kernel/fork.c:684 [inline] #3: (&mapping->i_mmap_rwsem){++++}, at: [<000000004ab64178>] dup_mm kernel/fork.c:1211 [inline] #3: (&mapping->i_mmap_rwsem){++++}, at: [<000000004ab64178>] copy_mm kernel/fork.c:1266 [inline] #3: (&mapping->i_mmap_rwsem){++++}, at: [<000000004ab64178>] copy_process.part.0+0x3eab/0x65d0 kernel/fork.c:1789 1 lock held by syz-executor.4/26139: #0: (&mapping->i_mmap_rwsem){++++}, at: [<00000000c6966861>] i_mmap_lock_write include/linux/fs.h:473 [inline] #0: (&mapping->i_mmap_rwsem){++++}, at: [<00000000c6966861>] unlink_file_vma+0x6e/0xa0 mm/mmap.c:158 1 lock held by syz-executor.5/16630: #0: (&mapping->i_mmap_rwsem){++++}, at: [<00000000c6966861>] i_mmap_lock_write include/linux/fs.h:473 [inline] #0: (&mapping->i_mmap_rwsem){++++}, at: [<00000000c6966861>] unlink_file_vma+0x6e/0xa0 mm/mmap.c:158 1 lock held by syz-executor.1/32557: #0: (&mapping->i_mmap_rwsem){++++}, at: [<00000000c6966861>] i_mmap_lock_write include/linux/fs.h:473 [inline] #0: (&mapping->i_mmap_rwsem){++++}, at: [<00000000c6966861>] unlink_file_vma+0x6e/0xa0 mm/mmap.c:158 1 lock held by syz-executor.5/32610: #0: (&mapping->i_mmap_rwsem){++++}, at: [<00000000c6966861>] i_mmap_lock_write include/linux/fs.h:473 [inline] #0: (&mapping->i_mmap_rwsem){++++}, at: [<00000000c6966861>] unlink_file_vma+0x6e/0xa0 mm/mmap.c:158 1 lock held by syz-executor.4/32608: #0: (&mapping->i_mmap_rwsem){++++}, at: [<00000000c6966861>] i_mmap_lock_write include/linux/fs.h:473 [inline] #0: (&mapping->i_mmap_rwsem){++++}, at: [<00000000c6966861>] unlink_file_vma+0x6e/0xa0 mm/mmap.c:158 1 lock held by syz-executor.0/32605: #0: (&mapping->i_mmap_rwsem){++++}, at: [<00000000c6966861>] i_mmap_lock_write include/linux/fs.h:473 [inline] #0: (&mapping->i_mmap_rwsem){++++}, at: [<00000000c6966861>] unlink_file_vma+0x6e/0xa0 mm/mmap.c:158 ============================================= NMI backtrace for cpu 1 CPU: 1 PID: 23 Comm: khungtaskd Not tainted 4.14.129+ #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 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 32598 Comm: syz-executor.0 Not tainted 4.14.129+ #11 task: 00000000a5d57efb task.stack: 00000000c1c5e62d RIP: 0010:native_apic_mem_write+0x8/0x10 arch/x86/include/asm/apic.h:100 RSP: 0018:ffff8881d7607ef0 EFLAGS: 00000046 RAX: ffffffffad89c1e0 RBX: ffffffffafaa7880 RCX: 0000000000000020 RDX: 1ffffffff5f54f2d RSI: 000000000000003e RDI: 0000000000000380 RBP: ffff8881d761df40 R08: ffff88821ffff01c R09: ffff88821ffff008 R10: ffff88821ffff010 R11: 00000216d7c9055d R12: 000000000000003e R13: 0000000000000003 R14: 00000215ed30b0b7 R15: ffff8881d7624b28 FS: 00007f2be503d700(0000) GS:ffff8881d7600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055ad5f3bea98 CR3: 00000001a848c003 CR4: 00000000001606b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 Call Trace: apic_write arch/x86/include/asm/apic.h:395 [inline] lapic_next_event+0x59/0x90 arch/x86/kernel/apic/apic.c:469 clockevents_program_event+0x1fd/0x2e0 kernel/time/clockevents.c:339 tick_program_event+0x78/0xd0 kernel/time/tick-oneshot.c:47 hrtimer_interrupt+0x20b/0x490 kernel/time/hrtimer.c:1370 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1037 [inline] smp_apic_timer_interrupt+0x136/0x620 arch/x86/kernel/apic/apic.c:1062 apic_timer_interrupt+0x84/0x90 arch/x86/entry/entry_64.S:789 RIP: 0010:arch_local_save_flags arch/x86/include/asm/paravirt.h:773 [inline] RIP: 0010:arch_local_irq_save arch/x86/include/asm/paravirt.h:795 [inline] RIP: 0010:lock_release+0xa6/0x730 kernel/locking/lockdep.c:4006 RSP: 0018:ffff88819e987860 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff10 RAX: 0000000000000007 RBX: 1ffff11033d30f10 RCX: 1ffffffff5f54e84 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff88819b341fac RBP: ffff88819b341780 R08: 0000000000000000 R09: 0000000000000000 R10: ffff88819b342050 R11: 0000000000000001 R12: ffffffffafcd3c60 R13: ffffea00074050a0 R14: dead000000000100 R15: ffff8881a4f11700 Code: 83 3d fc e3 db 02 01 77 02 5d c3 89 ef 5d e9 7a e7 fe ff 48 c7 c7 c0 a5 65 b0 e8 c4 6c 49 00 eb df 66 90 89 ff 89 b7 00 d0 5f ff 0f 1f 80 00 00 00 00 48 b8 00 00 00 00 00 fc ff df 53 89 fb