Warning: Permanently added '10.128.0.44' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program syzkaller login: [ 770.218443] hrtimer: interrupt took 42803 ns executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 1001.311752] INFO: task syz-executor110:8047 blocked for more than 140 seconds. [ 1001.321033] Not tainted 4.14.278-syzkaller #0 [ 1001.361644] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1001.369633] syz-executor110 D28912 8047 7987 0x00000004 [ 1001.411660] Call Trace: [ 1001.414272] __schedule+0x88b/0x1de0 [ 1001.417984] ? io_schedule_timeout+0x140/0x140 [ 1001.451669] ? mark_held_locks+0xa6/0xf0 [ 1001.455744] ? _raw_spin_unlock_irq+0x24/0x80 [ 1001.460232] ? rwsem_down_read_failed+0x1e6/0x350 [ 1001.501630] schedule+0x8d/0x1b0 [ 1001.505018] rwsem_down_read_failed+0x1e6/0x350 [ 1001.509675] ? rt_mutex_futex_unlock+0xc0/0xc0 [ 1001.551621] ? nanosleep_copyout+0x100/0x100 [ 1001.556063] call_rwsem_down_read_failed+0x14/0x30 [ 1001.560982] down_read+0x44/0x80 [ 1001.591613] ? __do_page_fault+0x7b8/0xad0 [ 1001.595859] __do_page_fault+0x7b8/0xad0 [ 1001.599938] ? spurious_fault+0x640/0x640 [ 1001.631617] ? do_page_fault+0x60/0x500 [ 1001.635625] ? page_fault+0x2f/0x50 [ 1001.639238] page_fault+0x45/0x50 [ 1001.671633] RIP: 0001:0x7f3b564d1040 [ 1001.675363] RSP: 564ca198:0000000000000000 EFLAGS: 00000000 [ 1001.682129] INFO: task syz-executor110:8049 blocked for more than 140 seconds. [ 1001.741592] Not tainted 4.14.278-syzkaller #0 [ 1001.746626] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1001.781575] syz-executor110 D28680 8049 7987 0x80000004 [ 1001.787227] Call Trace: [ 1001.789806] __schedule+0x88b/0x1de0 [ 1001.811611] ? io_schedule_timeout+0x140/0x140 [ 1001.816214] ? mark_held_locks+0xa6/0xf0 [ 1001.820265] ? _raw_spin_unlock_irq+0x24/0x80 [ 1001.851598] ? rwsem_down_read_failed+0x1e6/0x350 [ 1001.851609] schedule+0x8d/0x1b0 [ 1001.851615] rwsem_down_read_failed+0x1e6/0x350 [ 1001.851624] ? rt_mutex_futex_unlock+0xc0/0xc0 [ 1001.851643] call_rwsem_down_read_failed+0x14/0x30 [ 1001.851653] down_read+0x44/0x80 [ 1001.851662] ? do_exit+0x598/0x2850 [ 1001.851668] do_exit+0x598/0x2850 [ 1001.851681] ? mm_update_next_owner+0x5b0/0x5b0 [ 1001.851689] ? get_signal+0x323/0x1ca0 [ 1001.851699] ? lock_acquire+0x170/0x3f0 [ 1001.851706] ? lock_downgrade+0x740/0x740 [ 1001.851715] do_group_exit+0x100/0x2e0 [ 1001.851724] get_signal+0x38d/0x1ca0 [ 1001.851733] ? trace_hardirqs_on+0x10/0x10 [ 1001.851746] do_signal+0x7c/0x1550 [ 1002.061569] ? lock_downgrade+0x740/0x740 [ 1002.061580] ? call_rwsem_down_write_failed_killable+0x13/0x20 [ 1002.061588] ? setup_sigcontext+0x820/0x820 [ 1002.061597] ? down_write_killable+0x9a/0xb0 [ 1002.061606] ? vm_mmap_pgoff+0xcb/0x1a0 [ 1002.061616] ? vma_is_stack_for_current+0xb0/0xb0 [ 1002.061623] ? __fget+0x265/0x3e0 [ 1002.061634] ? fput_many+0xe/0x140 [ 1002.061643] ? SyS_mmap_pgoff+0x25e/0x510 [ 1002.061651] ? exit_to_usermode_loop+0x41/0x200 [ 1002.061661] exit_to_usermode_loop+0x160/0x200 [ 1002.061670] do_syscall_64+0x4a3/0x640 [ 1002.061681] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 1002.061690] RIP: 0033:0x7f3b56444c39 [ 1002.291505] RSP: 002b:00007f3b563f62f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 [ 1002.299224] RAX: fffffffffffffffc RBX: 000000000000002e RCX: 00007f3b56444c39 [ 1002.341528] RDX: 0000000000000000 RSI: 0000000000002000 RDI: 0000000020341000 [ 1002.348810] RBP: 00007f3b564cc408 R08: 0000000000000004 R09: 0000000000000000 [ 1002.391533] R10: 0000000000000011 R11: 0000000000000246 R12: 00007f3b564cc400 [ 1002.398827] R13: 00007f3b5649a074 R14: 0000000000000000 R15: 0000000000022000 [ 1002.431599] INFO: task syz-executor110:8051 blocked for more than 140 seconds. [ 1002.439066] Not tainted 4.14.278-syzkaller #0 [ 1002.471501] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1002.479488] syz-executor110 D28912 8051 7991 0x00000004 [ 1002.531469] Call Trace: [ 1002.534080] __schedule+0x88b/0x1de0 [ 1002.537788] ? io_schedule_timeout+0x140/0x140 [ 1002.571494] ? mark_held_locks+0xa6/0xf0 [ 1002.575582] ? _raw_spin_unlock_irq+0x24/0x80 [ 1002.580065] ? rwsem_down_read_failed+0x1e6/0x350 [ 1002.611471] schedule+0x8d/0x1b0 [ 1002.614870] rwsem_down_read_failed+0x1e6/0x350 [ 1002.619529] ? rt_mutex_futex_unlock+0xc0/0xc0 [ 1002.651464] ? nanosleep_copyout+0x100/0x100 [ 1002.655906] call_rwsem_down_read_failed+0x14/0x30 [ 1002.660827] down_read+0x44/0x80 [ 1002.701460] ? __do_page_fault+0x7b8/0xad0 [ 1002.705705] __do_page_fault+0x7b8/0xad0 [ 1002.709760] ? spurious_fault+0x640/0x640 [ 1002.751475] ? do_page_fault+0x60/0x500 [ 1002.755469] ? page_fault+0x2f/0x50 [ 1002.759086] page_fault+0x45/0x50 [ 1002.791461] RIP: 0001:0x7f3b564d1040 [ 1002.795192] RSP: 564ca198:0000000000000000 EFLAGS: 00000000 [ 1002.795253] INFO: task syz-executor110:8052 blocked for more than 140 seconds. [ 1002.831456] Not tainted 4.14.278-syzkaller #0 [ 1002.836483] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1002.891445] syz-executor110 D28536 8052 7991 0x80000004 [ 1002.897104] Call Trace: [ 1002.899686] __schedule+0x88b/0x1de0 [ 1002.941432] ? retint_kernel+0x2d/0x2d [ 1002.945347] ? io_schedule_timeout+0x140/0x140 [ 1002.949916] ? rwsem_down_read_failed+0x1e6/0x350 [ 1002.981419] schedule+0x8d/0x1b0 [ 1002.984807] rwsem_down_read_failed+0x1e6/0x350 [ 1002.989472] ? rt_mutex_futex_unlock+0xc0/0xc0 [ 1003.021420] call_rwsem_down_read_failed+0x14/0x30 [ 1003.026367] down_read+0x44/0x80 [ 1003.029754] ? do_exit+0x598/0x2850 [ 1003.051430] do_exit+0x598/0x2850 [ 1003.054897] ? trace_hardirqs_on_caller+0x3a8/0x580 [ 1003.059899] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 1003.101401] ? mm_update_next_owner+0x5b0/0x5b0 [ 1003.106095] ? retint_kernel+0x2d/0x2d [ 1003.109978] do_group_exit+0x100/0x2e0 [ 1003.151417] get_signal+0x38d/0x1ca0 [ 1003.155152] ? retint_kernel+0x2d/0x2d [ 1003.159033] do_signal+0x7c/0x1550 [ 1003.191414] ? lock_downgrade+0x740/0x740 [ 1003.195583] ? call_rwsem_down_write_failed_killable+0x13/0x20 [ 1003.221383] ? setup_sigcontext+0x820/0x820 [ 1003.225719] ? down_write_killable+0x9a/0xb0 [ 1003.230114] ? vm_mmap_pgoff+0xcb/0x1a0 [ 1003.261377] ? vma_is_stack_for_current+0xb0/0xb0 [ 1003.266231] ? __fget+0x265/0x3e0 [ 1003.269675] ? fput_many+0xe/0x140 [ 1003.311392] ? SyS_mmap_pgoff+0x25e/0x510 [ 1003.315557] ? exit_to_usermode_loop+0x41/0x200 [ 1003.320215] exit_to_usermode_loop+0x160/0x200 [ 1003.361365] do_syscall_64+0x4a3/0x640 [ 1003.365276] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 1003.370453] RIP: 0033:0x7f3b56444c39 [ 1003.401346] RSP: 002b:00007f3b563f62f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 [ 1003.409087] RAX: fffffffffffffffc RBX: 0000000000000037 RCX: 00007f3b56444c39 [ 1003.441342] RDX: 0000000000000000 RSI: 0000000000002000 RDI: 0000000020341000 [ 1003.448624] RBP: 00007f3b564cc408 R08: 0000000000000004 R09: 0000000000000000 [ 1003.501333] R10: 0000000000000011 R11: 0000000000000246 R12: 00007f3b564cc400 [ 1003.508615] R13: 00007f3b5649a074 R14: 0000000000000000 R15: 0000000000022000 [ 1003.551399] INFO: task syz-executor110:8087 blocked for more than 140 seconds. [ 1003.558766] Not tainted 4.14.278-syzkaller #0 [ 1003.591358] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1003.599350] syz-executor110 D28912 8087 7988 0x00000004 [ 1003.631337] Call Trace: [ 1003.633954] __schedule+0x88b/0x1de0 [ 1003.637663] ? io_schedule_timeout+0x140/0x140 [ 1003.671367] ? mark_held_locks+0xa6/0xf0 [ 1003.675453] ? _raw_spin_unlock_irq+0x24/0x80 [ 1003.679934] ? rwsem_down_read_failed+0x1e6/0x350 [ 1003.731333] schedule+0x8d/0x1b0 [ 1003.734724] rwsem_down_read_failed+0x1e6/0x350 [ 1003.739379] ? rt_mutex_futex_unlock+0xc0/0xc0 [ 1003.781895] ? nanosleep_copyout+0x100/0x100 [ 1003.786332] call_rwsem_down_read_failed+0x14/0x30 [ 1003.791249] down_read+0x44/0x80 [ 1003.831310] ? __do_page_fault+0x7b8/0xad0 [ 1003.835569] __do_page_fault+0x7b8/0xad0 [ 1003.839626] ? spurious_fault+0x640/0x640 [ 1003.881294] ? do_page_fault+0x60/0x500 [ 1003.885289] ? page_fault+0x2f/0x50 [ 1003.888901] page_fault+0x45/0x50 [ 1003.931315] RIP: 0001:0x7f3b564d1040 [ 1003.935060] RSP: 564ca198:0000000000000000 EFLAGS: 00000000 [ 1003.941894] INFO: task syz-executor110:8088 blocked for more than 140 seconds. [ 1003.991295] Not tainted 4.14.278-syzkaller #0 [ 1003.996324] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1004.041858] syz-executor110 D28680 8088 7988 0x80000004 [ 1004.047506] Call Trace: [ 1004.050093] __schedule+0x88b/0x1de0 [ 1004.101263] ? io_schedule_timeout+0x140/0x140 [ 1004.105865] ? mark_held_locks+0xa6/0xf0 [ 1004.109914] ? _raw_spin_unlock_irq+0x24/0x80 [ 1004.161246] ? rwsem_down_read_failed+0x1e6/0x350 [ 1004.166109] schedule+0x8d/0x1b0 [ 1004.169464] rwsem_down_read_failed+0x1e6/0x350 [ 1004.201247] ? rt_mutex_futex_unlock+0xc0/0xc0 [ 1004.205859] call_rwsem_down_read_failed+0x14/0x30 [ 1004.210799] down_read+0x44/0x80 [ 1004.241238] ? do_exit+0x598/0x2850 [ 1004.244883] do_exit+0x598/0x2850 [ 1004.248331] ? __schedule+0x893/0x1de0 [ 1004.271271] ? mm_update_next_owner+0x5b0/0x5b0 [ 1004.275955] ? get_signal+0x323/0x1ca0 [ 1004.279831] ? lock_acquire+0x170/0x3f0 [ 1004.331246] ? lock_downgrade+0x740/0x740 [ 1004.335412] do_group_exit+0x100/0x2e0 [ 1004.339289] get_signal+0x38d/0x1ca0 [ 1004.371241] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 1004.371254] do_signal+0x7c/0x1550 [ 1004.371264] ? retint_kernel+0x2d/0x2d [ 1004.371274] ? trace_hardirqs_on_caller+0x3a8/0x580 [ 1004.371281] ? setup_sigcontext+0x820/0x820 [ 1004.371288] ? retint_kernel+0x2d/0x2d [ 1004.371297] ? trace_hardirqs_on_caller+0x3a8/0x580 [ 1004.371308] ? retint_kernel+0x2d/0x2d [ 1004.371323] exit_to_usermode_loop+0x160/0x200 [ 1004.371332] do_syscall_64+0x4a3/0x640 [ 1004.371344] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 1004.371351] RIP: 0033:0x7f3b56444c39 [ 1004.371358] RSP: 002b:00007f3b563f62f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 [ 1004.558904] RAX: fffffffffffffffc RBX: 0000000000000024 RCX: 00007f3b56444c39 [ 1004.591180] RDX: 0000000000000000 RSI: 0000000000002000 RDI: 0000000020341000 [ 1004.598454] RBP: 00007f3b564cc408 R08: 0000000000000004 R09: 0000000000000000 [ 1004.631179] R10: 0000000000000011 R11: 0000000000000246 R12: 00007f3b564cc400 [ 1004.638467] R13: 00007f3b5649a074 R14: 0000000000000000 R15: 0000000000022000 [ 1004.691216] INFO: task syz-executor110:8095 blocked for more than 140 seconds. [ 1004.698593] Not tainted 4.14.278-syzkaller #0 [ 1004.741165] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1004.749142] syz-executor110 D28912 8095 7984 0x00000004 [ 1004.781151] Call Trace: [ 1004.783764] __schedule+0x88b/0x1de0 [ 1004.787469] ? io_schedule_timeout+0x140/0x140 [ 1004.821156] ? mark_held_locks+0xa6/0xf0 [ 1004.825235] ? _raw_spin_unlock_irq+0x24/0x80 [ 1004.829716] ? rwsem_down_read_failed+0x1e6/0x350 [ 1004.861150] schedule+0x8d/0x1b0 [ 1004.864623] rwsem_down_read_failed+0x1e6/0x350 [ 1004.869280] ? rt_mutex_futex_unlock+0xc0/0xc0 [ 1004.911394] ? nanosleep_copyout+0x100/0x100 [ 1004.915840] call_rwsem_down_read_failed+0x14/0x30 [ 1004.920762] down_read+0x44/0x80 [ 1004.961142] ? __do_page_fault+0x7b8/0xad0 [ 1004.965402] __do_page_fault+0x7b8/0xad0 [ 1004.969455] ? spurious_fault+0x640/0x640 [ 1005.001134] ? do_page_fault+0x60/0x500 [ 1005.005131] ? page_fault+0x2f/0x50 [ 1005.008745] page_fault+0x45/0x50 [ 1005.041120] RIP: 0001:0x7f3b564d1040 [ 1005.044845] RSP: 564ca198:0000000000000000 EFLAGS: 00000000 [ 1005.051818] INFO: task syz-executor110:8096 blocked for more than 140 seconds. [ 1005.111108] Not tainted 4.14.278-syzkaller #0 [ 1005.116235] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1005.161122] syz-executor110 D28528 8096 7984 0x80000004 [ 1005.166782] Call Trace: [ 1005.169363] __schedule+0x88b/0x1de0 [ 1005.191112] ? io_schedule_timeout+0x140/0x140 [ 1005.195712] ? mark_held_locks+0xa6/0xf0 [ 1005.199761] ? _raw_spin_unlock_irq+0x24/0x80 [ 1005.231100] ? rwsem_down_read_failed+0x1e6/0x350 [ 1005.235962] schedule+0x8d/0x1b0 [ 1005.239317] rwsem_down_read_failed+0x1e6/0x350 [ 1005.271113] ? rt_mutex_futex_unlock+0xc0/0xc0 [ 1005.275722] call_rwsem_down_read_failed+0x14/0x30 [ 1005.280642] down_read+0x44/0x80 [ 1005.311089] ? do_exit+0x598/0x2850 [ 1005.314732] do_exit+0x598/0x2850 [ 1005.318172] ? trace_hardirqs_on_caller+0x3a8/0x580 [ 1005.361106] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 1005.365897] ? mm_update_next_owner+0x5b0/0x5b0 [ 1005.370554] ? get_signal+0x323/0x1ca0 [ 1005.401115] ? lock_acquire+0x170/0x3f0 [ 1005.405112] ? lock_downgrade+0x740/0x740 [ 1005.409259] do_group_exit+0x100/0x2e0 [ 1005.451072] get_signal+0x38d/0x1ca0 [ 1005.454807] ? trace_hardirqs_on+0x10/0x10 [ 1005.459037] do_signal+0x7c/0x1550 [ 1005.501086] ? lock_downgrade+0x740/0x740 [ 1005.505251] ? call_rwsem_down_write_failed_killable+0x13/0x20 [ 1005.531059] ? setup_sigcontext+0x820/0x820 [ 1005.535397] ? down_write_killable+0x9a/0xb0 [ 1005.539793] ? vm_mmap_pgoff+0xcb/0x1a0 [ 1005.571098] ? vma_is_stack_for_current+0xb0/0xb0 [ 1005.575962] ? __fget+0x265/0x3e0 [ 1005.579406] ? fput_many+0xe/0x140 [ 1005.611064] ? SyS_mmap_pgoff+0x25e/0x510 [ 1005.615230] ? exit_to_usermode_loop+0x41/0x200 [ 1005.619888] exit_to_usermode_loop+0x160/0x200 [ 1005.651043] do_syscall_64+0x4a3/0x640 [ 1005.654945] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 1005.660122] RIP: 0033:0x7f3b56444c39 [ 1005.691024] RSP: 002b:00007f3b563f62f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 [ 1005.698754] RAX: fffffffffffffffc RBX: 0000000000000003 RCX: 00007f3b56444c39 [ 1005.731018] RDX: 0000000000000000 RSI: 0000000000002000 RDI: 0000000020341000 [ 1005.738301] RBP: 00007f3b564cc408 R08: 0000000000000004 R09: 0000000000000000 [ 1005.791013] R10: 0000000000000011 R11: 0000000000000246 R12: 00007f3b564cc400 [ 1005.798301] R13: 00007f3b5649a074 R14: 0000000000000000 R15: 0000000000022000 [ 1005.831060] INFO: task syz-executor110:8106 blocked for more than 140 seconds. [ 1005.838439] Not tainted 4.14.278-syzkaller #0 [ 1005.871020] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1005.879001] syz-executor110 D28912 8106 7985 0x00000004 [ 1005.940996] Call Trace: [ 1005.943610] __schedule+0x88b/0x1de0 [ 1005.947318] ? io_schedule_timeout+0x140/0x140 [ 1005.991573] ? mark_held_locks+0xa6/0xf0 [ 1005.995661] ? _raw_spin_unlock_irq+0x24/0x80 [ 1006.000142] ? rwsem_down_read_failed+0x1e6/0x350 [ 1006.040986] schedule+0x8d/0x1b0 [ 1006.044373] rwsem_down_read_failed+0x1e6/0x350 [ 1006.049028] ? rt_mutex_futex_unlock+0xc0/0xc0 [ 1006.080978] ? nanosleep_copyout+0x100/0x100 [ 1006.085421] call_rwsem_down_read_failed+0x14/0x30 [ 1006.090340] down_read+0x44/0x80 [ 1006.140978] ? __do_page_fault+0x7b8/0xad0 [ 1006.145236] __do_page_fault+0x7b8/0xad0 [ 1006.149291] ? spurious_fault+0x640/0x640 [ 1006.190975] ? do_page_fault+0x60/0x500 [ 1006.194967] ? page_fault+0x2f/0x50 [ 1006.198584] page_fault+0x45/0x50 [ 1006.230961] RIP: 0001:0x7f3b564d1040 [ 1006.234683] RSP: 564ca198:0000000000000000 EFLAGS: 00000000 [ 1006.234724] INFO: task syz-executor110:8107 blocked for more than 140 seconds. [ 1006.310966] Not tainted 4.14.278-syzkaller #0 [ 1006.315995] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1006.350950] syz-executor110 D28600 8107 7985 0x80000004 [ 1006.356594] Call Trace: [ 1006.359176] __schedule+0x88b/0x1de0 [ 1006.400964] ? io_schedule_timeout+0x140/0x140 [ 1006.405561] ? rwsem_down_read_failed+0x1e6/0x350 [ 1006.430932] schedule+0x8d/0x1b0 [ 1006.434314] rwsem_down_read_failed+0x1e6/0x350 [ 1006.438975] ? rt_mutex_futex_unlock+0xc0/0xc0 [ 1006.470931] call_rwsem_down_read_failed+0x14/0x30 [ 1006.475876] down_read+0x44/0x80 [ 1006.479233] ? do_exit+0x598/0x2850 [ 1006.510918] do_exit+0x598/0x2850 [ 1006.514391] ? mm_update_next_owner+0x5b0/0x5b0 [ 1006.519058] do_group_exit+0x100/0x2e0 [ 1006.550915] get_signal+0x38d/0x1ca0 [ 1006.554644] ? trace_hardirqs_on+0x10/0x10 [ 1006.558875] do_signal+0x7c/0x1550 [ 1006.600967] ? trace_hardirqs_on_caller+0x3a8/0x580 [ 1006.606005] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 1006.610750] ? setup_sigcontext+0x820/0x820 [ 1006.650901] ? retint_kernel+0x2d/0x2d [ 1006.654820] ? fput_many+0x15/0x140 [ 1006.658433] ? fput_many+0xe/0x140 [ 1006.690893] ? SyS_mmap_pgoff+0x25e/0x510 [ 1006.695049] ? exit_to_usermode_loop+0x41/0x200 [ 1006.699707] exit_to_usermode_loop+0x160/0x200 [ 1006.740913] do_syscall_64+0x4a3/0x640 [ 1006.744869] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 1006.750047] RIP: 0033:0x7f3b56444c39 [ 1006.790879] RSP: 002b:00007f3b563f62f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 [ 1006.798608] RAX: fffffffffffffffc RBX: 000000000000002c RCX: 00007f3b56444c39 [ 1006.870859] RDX: 0000000000000000 RSI: 0000000000002000 RDI: 0000000020341000 [ 1006.878151] RBP: 00007f3b564cc408 R08: 0000000000000004 R09: 0000000000000000 [ 1006.910854] R10: 0000000000000011 R11: 0000000000000246 R12: 00007f3b564cc400 [ 1006.918142] R13: 00007f3b5649a074 R14: 0000000000000000 R15: 0000000000022000 [ 1006.950896] [ 1006.950896] Showing all locks held in the system: [ 1006.957236] 1 lock held by khungtaskd/1533: [ 1006.961746] #0: (tasklist_lock){.+.+}, at: [] debug_show_all_locks+0x7c/0x21a [ 1006.970792] 1 lock held by syz-executor110/8047: [ 1006.975556] #0: (&mm->mmap_sem){++++}, at: [] __do_page_fault+0x7b8/0xad0 [ 1006.984249] 1 lock held by syz-executor110/8049: [ 1006.988988] #0: (&mm->mmap_sem){++++}, at: [] do_exit+0x598/0x2850 [ 1006.997071] 1 lock held by syz-executor110/8051: [ 1007.001829] #0: (&mm->mmap_sem){++++}, at: [] __do_page_fault+0x7b8/0xad0 [ 1007.010584] 1 lock held by syz-executor110/8052: [ 1007.015386] #0: (&mm->mmap_sem){++++}, at: [] do_exit+0x598/0x2850 [ 1007.023476] 1 lock held by syz-executor110/8087: [ 1007.028214] #0: (&mm->mmap_sem){++++}, at: [] __do_page_fault+0x7b8/0xad0 [ 1007.036905] 1 lock held by syz-executor110/8088: [ 1007.041660] #0: (&mm->mmap_sem){++++}, at: [] do_exit+0x598/0x2850 [ 1007.049722] 1 lock held by syz-executor110/8095: [ 1007.054479] #0: (&mm->mmap_sem){++++}, at: [] __do_page_fault+0x7b8/0xad0 [ 1007.063173] 1 lock held by syz-executor110/8096: [ 1007.067908] #0: (&mm->mmap_sem){++++}, at: [] do_exit+0x598/0x2850 [ 1007.075986] 1 lock held by syz-executor110/8106: [ 1007.080723] #0: (&mm->mmap_sem){++++}, at: [] __do_page_fault+0x7b8/0xad0 [ 1007.089414] 1 lock held by syz-executor110/8107: [ 1007.094167] #0: (&mm->mmap_sem){++++}, at: [] do_exit+0x598/0x2850 [ 1007.102251] 1 lock held by syz-executor110/8116: [ 1007.106987] #0: (&mm->mmap_sem){++++}, at: [] __do_page_fault+0x7b8/0xad0 [ 1007.115677] 1 lock held by syz-executor110/8117: [ 1007.120414] #0: (&mm->mmap_sem){++++}, at: [] do_exit+0x598/0x2850 [ 1007.128490] [ 1007.130099] ============================================= [ 1007.130099] [ 1007.580758] NMI backtrace for cpu 0 [ 1007.584401] CPU: 0 PID: 1533 Comm: khungtaskd Not tainted 4.14.278-syzkaller #0 [ 1007.591831] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1007.601168] Call Trace: [ 1007.603746] dump_stack+0x1b2/0x281 [ 1007.607366] nmi_cpu_backtrace.cold+0x57/0x93 [ 1007.611849] ? irq_force_complete_move+0x350/0x350 [ 1007.616783] nmi_trigger_cpumask_backtrace+0x13a/0x180 [ 1007.622059] watchdog+0x5b9/0xb40 [ 1007.625507] ? hungtask_pm_notify+0x50/0x50 [ 1007.629819] kthread+0x30d/0x420 [ 1007.633174] ? kthread_create_on_node+0xd0/0xd0 [ 1007.637835] ret_from_fork+0x24/0x30 [ 1007.641603] Sending NMI from CPU 0 to CPUs 1: [ 1007.646469] NMI backtrace for cpu 1 [ 1007.646473] CPU: 1 PID: 8057 Comm: syz-executor110 Not tainted 4.14.278-syzkaller #0 [ 1007.646477] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1007.646480] task: ffff8880941f4580 task.stack: ffff888095458000 [ 1007.646483] RIP: 0010:__lock_acquire+0x3cb/0x3f20 [ 1007.646485] RSP: 0018:ffff88809545f8a0 EFLAGS: 00000046 [ 1007.646490] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 000000000000040e [ 1007.646493] RDX: 1ffff1101283e9c9 RSI: 1ffff1101283e9c5 RDI: ffff8880941f4e40 [ 1007.646496] RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000 [ 1007.646500] R10: ffff8880941f4e30 R11: ffff8880941f4580 R12: ffff8880941f4e48 [ 1007.646503] R13: 000000000000058c R14: 000000000000058c R15: ffffffff8bed1d40 [ 1007.646506] FS: 00007f3b563d5700(0000) GS:ffff8880ba500000(0000) knlGS:0000000000000000 [ 1007.646509] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1007.646512] CR2: 00007f50d73ba008 CR3: 00000000ab9bd000 CR4: 00000000003406e0 [ 1007.646516] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 1007.646519] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 1007.646520] Call Trace: [ 1007.646523] ? __schedule+0x893/0x1de0 [ 1007.646525] ? mark_held_locks+0xa6/0xf0 [ 1007.646527] ? retint_kernel+0x2d/0x2d [ 1007.646529] ? trace_hardirqs_on+0x10/0x10 [ 1007.646532] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 1007.646534] ? retint_kernel+0x2d/0x2d [ 1007.646536] ? perf_mmap+0x50a/0x1390 [ 1007.646538] ? perf_mmap+0x50a/0x1390 [ 1007.646540] lock_acquire+0x170/0x3f0 [ 1007.646542] ? perf_mmap+0x50a/0x1390 [ 1007.646544] ? perf_mmap+0x50a/0x1390 [ 1007.646551] __mutex_lock+0xc4/0x1310 [ 1007.646554] ? perf_mmap+0x50a/0x1390 [ 1007.646556] ? perf_mmap+0x50a/0x1390 [ 1007.646558] ? lock_downgrade+0x740/0x740 [ 1007.646560] ? __ww_mutex_wakeup_for_backoff+0x210/0x210 [ 1007.646563] ? __mutex_unlock_slowpath+0x75/0x770 [ 1007.646565] ? wait_for_completion_io+0x10/0x10 [ 1007.646567] perf_mmap+0x50a/0x1390 [ 1007.646570] ? kmem_cache_alloc+0x35f/0x3c0 [ 1007.646572] mmap_region+0xa1a/0x1220 [ 1007.646574] do_mmap+0x5b3/0xcb0 [ 1007.646576] vm_mmap_pgoff+0x14e/0x1a0 [ 1007.646578] ? vma_is_stack_for_current+0xb0/0xb0 [ 1007.646580] SyS_mmap_pgoff+0x249/0x510 [ 1007.646583] ? find_mergeable_anon_vma+0x230/0x230 [ 1007.646585] ? fput_many+0xe/0x140 [ 1007.646587] ? do_syscall_64+0x4c/0x640 [ 1007.646589] ? align_vdso_addr+0x250/0x250 [ 1007.646591] do_syscall_64+0x1d5/0x640 [ 1007.646593] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 1007.646595] RIP: 0033:0x7f3b56444c39 [ 1007.646598] RSP: 002b:00007f3b563d52f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 [ 1007.646603] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f3b56444c39 [ 1007.646607] RDX: 0000000000000000 RSI: 0000000000002000 RDI: 0000000020395000 [ 1007.646610] RBP: 00007f3b564cc418 R08: 0000000000000003 R09: 0000000000000000 [ 1007.646613] R10: 0000000000000011 R11: 0000000000000246 R12: 00007f3b564cc410 [ 1007.646616] R13: 00007f3b5649a074 R14: 00007f3b564ca130 R15: 0000000000022000 [ 1007.646617] Code: 02 00 0f 85 4a 27 00 00 48 b8 00 00 00 00 00 fc ff df 4d 89 62 10 4d 8d 62 18 4c 89 e2 48 c1 ea 03 80 3c 02 00 0f 85 59 27 00 00 <48> 8b 84 24 b8 01 00 00 49 8d bb 54 08 00 00 48 89 fa 48 c1 ea [ 1007.790728] Kernel panic - not syncing: hung_task: blocked tasks [ 1007.958123] CPU: 0 PID: 1533 Comm: khungtaskd Not tainted 4.14.278-syzkaller #0 [ 1007.965584] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1007.974922] Call Trace: [ 1007.977500] dump_stack+0x1b2/0x281 [ 1007.981115] panic+0x1f9/0x42d [ 1007.984294] ? add_taint.cold+0x16/0x16 [ 1007.988265] watchdog+0x5ca/0xb40 [ 1007.991706] ? hungtask_pm_notify+0x50/0x50 [ 1007.996015] kthread+0x30d/0x420 [ 1007.999465] ? kthread_create_on_node+0xd0/0xd0 [ 1008.004121] ret_from_fork+0x24/0x30 [ 1008.008028] Kernel Offset: disabled [ 1008.011640] Rebooting in 86400 seconds..