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 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 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 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 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 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 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 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 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 executing program executing program executing program executing program executing program [ 1144.668843] INFO: task syz-executor417:8900 blocked for more than 140 seconds. [ 1144.676305] Not tainted 4.14.265-syzkaller #0 [ 1144.683571] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1144.692254] syz-executor417 D28912 8900 7981 0x00000004 [ 1144.697900] Call Trace: [ 1144.702479] __schedule+0x88b/0x1de0 [ 1144.706205] ? io_schedule_timeout+0x140/0x140 [ 1144.711824] ? mark_held_locks+0xa6/0xf0 [ 1144.715894] ? _raw_spin_unlock_irq+0x24/0x80 [ 1144.721354] ? rwsem_down_read_failed+0x1e6/0x350 [ 1144.726202] schedule+0x8d/0x1b0 [ 1144.730751] rwsem_down_read_failed+0x1e6/0x350 [ 1144.735452] ? rt_mutex_futex_unlock+0xc0/0xc0 [ 1144.741707] ? check_preemption_disabled+0x35/0x240 [ 1144.746741] call_rwsem_down_read_failed+0x14/0x30 [ 1144.752819] down_read+0x44/0x80 [ 1144.756194] ? __do_page_fault+0x7b8/0xad0 [ 1144.761417] __do_page_fault+0x7b8/0xad0 [ 1144.765484] ? spurious_fault+0x640/0x640 [ 1144.770661] ? do_page_fault+0x60/0x500 [ 1144.774642] ? page_fault+0x2f/0x50 [ 1144.778260] page_fault+0x45/0x50 [ 1144.783073] RIP: e2d0141c:0x7ffd41c5bc30 [ 1144.787138] RSP: 0064:0000000000000032 EFLAGS: 7ffd41c5bc10 [ 1144.787219] INFO: task syz-executor417:8901 blocked for more than 140 seconds. [ 1144.801796] Not tainted 4.14.265-syzkaller #0 [ 1144.806814] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1144.816059] syz-executor417 D28984 8901 7981 0x80000004 [ 1144.822414] Call Trace: [ 1144.825012] __schedule+0x88b/0x1de0 [ 1144.829734] ? io_schedule_timeout+0x140/0x140 [ 1144.834323] ? mark_held_locks+0xa6/0xf0 [ 1144.838382] ? _raw_spin_unlock_irq+0x24/0x80 [ 1144.844336] ? rwsem_down_read_failed+0x1e6/0x350 [ 1144.849849] schedule+0x8d/0x1b0 [ 1144.853222] rwsem_down_read_failed+0x1e6/0x350 [ 1144.857889] ? rt_mutex_futex_unlock+0xc0/0xc0 [ 1144.863859] call_rwsem_down_read_failed+0x14/0x30 [ 1144.870024] down_read+0x44/0x80 [ 1144.873394] ? do_exit+0x598/0x2850 [ 1144.877018] do_exit+0x598/0x2850 [ 1144.882919] ? futex_lock_pi_atomic+0x2e0/0x2e0 [ 1144.887605] ? hash_futex+0x12/0x200 [ 1144.892449] ? mm_update_next_owner+0x5b0/0x5b0 [ 1144.897124] ? get_signal+0x323/0x1ca0 [ 1144.902035] ? lock_acquire+0x170/0x3f0 [ 1144.906014] ? lock_downgrade+0x740/0x740 [ 1144.911180] do_group_exit+0x100/0x2e0 [ 1144.915072] get_signal+0x38d/0x1ca0 [ 1144.919765] ? do_futex+0x127/0x1570 [ 1144.923500] do_signal+0x7c/0x1550 [ 1144.927044] ? call_rwsem_wake+0x17/0x30 [ 1144.932589] ? setup_sigcontext+0x820/0x820 [ 1144.936924] ? vm_mmap_pgoff+0x168/0x1a0 [ 1144.942116] ? vm_mmap_pgoff+0xcb/0x1a0 [ 1144.946101] ? vma_is_stack_for_current+0xb0/0xb0 [ 1144.952082] ? __fget+0x2df/0x460 [ 1144.955545] ? SyS_futex+0x1da/0x290 [ 1144.960252] ? SyS_futex+0x1e3/0x290 [ 1144.963970] ? SyS_mmap_pgoff+0x25e/0x510 [ 1144.968108] ? exit_to_usermode_loop+0x41/0x200 [ 1144.974130] exit_to_usermode_loop+0x160/0x200 [ 1144.979407] do_syscall_64+0x4a3/0x640 [ 1144.983311] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 1144.988492] RIP: 0033:0x7f3ee2c79b39 [ 1144.994016] RSP: 002b:00007f3ee2c2b318 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 1145.003031] RAX: fffffffffffffe00 RBX: 00007f3ee2d01408 RCX: 00007f3ee2c79b39 [ 1145.010954] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f3ee2d01408 [ 1145.018229] RBP: 00007f3ee2d01400 R08: 0000000000000000 R09: 0000000000000000 [ 1145.026543] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f3ee2ccf074 [ 1145.034474] R13: 00007ffd41c5bb5f R14: 00007f3ee2c2b400 R15: 0000000000022000 [ 1145.042466] [ 1145.042466] Showing all locks held in the system: [ 1145.049535] 1 lock held by khungtaskd/1533: [ 1145.053932] #0: (tasklist_lock){.+.+}, at: [] debug_show_all_locks+0x7c/0x21a [ 1145.063050] 1 lock held by syz-executor417/8900: [ 1145.067792] #0: (&mm->mmap_sem){++++}, at: [] __do_page_fault+0x7b8/0xad0 [ 1145.076512] 1 lock held by syz-executor417/8901: [ 1145.081294] #0: (&mm->mmap_sem){++++}, at: [] do_exit+0x598/0x2850 [ 1145.089395] [ 1145.091010] ============================================= [ 1145.091010] [ 1145.102855] NMI backtrace for cpu 0 [ 1145.106504] CPU: 0 PID: 1533 Comm: khungtaskd Not tainted 4.14.265-syzkaller #0 [ 1145.113944] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1145.123295] Call Trace: [ 1145.125882] dump_stack+0x1b2/0x281 [ 1145.129504] nmi_cpu_backtrace.cold+0x57/0x93 [ 1145.133996] ? irq_force_complete_move+0x350/0x350 [ 1145.138924] nmi_trigger_cpumask_backtrace+0x13a/0x180 [ 1145.144198] watchdog+0x5b9/0xb40 [ 1145.147648] ? hungtask_pm_notify+0x50/0x50 [ 1145.151961] kthread+0x30d/0x420 [ 1145.155328] ? kthread_create_on_node+0xd0/0xd0 [ 1145.160018] ret_from_fork+0x24/0x30 [ 1145.163835] Sending NMI from CPU 0 to CPUs 1: [ 1145.168637] NMI backtrace for cpu 1 [ 1145.168641] CPU: 1 PID: 8902 Comm: syz-executor417 Not tainted 4.14.265-syzkaller #0 [ 1145.168645] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1145.168649] task: ffff8880aff9a300 task.stack: ffff8880a0160000 [ 1145.168651] RIP: 0010:___might_sleep+0x155/0x2b0 [ 1145.168654] RSP: 0018:ffff8880a0167aa0 EFLAGS: 00000246 [ 1145.168659] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001 [ 1145.168663] RDX: 1ffff11015ff34d0 RSI: 00000000ffffffff RDI: ffff8880aff9a680 [ 1145.168666] RBP: ffffffff8789d300 R08: ffffffff8165919a R09: dffffc0000000000 [ 1145.168670] R10: 0000000000000000 R11: ffff8880aff9a300 R12: 00000000000002eb [ 1145.168673] R13: 0000000000000000 R14: ffff8880aff9a300 R15: ffffffff8165919a [ 1145.168677] FS: 00007f3ee2c0a700(0000) GS:ffff8880ba500000(0000) knlGS:0000000000000000 [ 1145.168680] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1145.168684] CR2: 00007ffd41c5bbb8 CR3: 00000000b428a000 CR4: 00000000003406e0 [ 1145.168687] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 1145.168690] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 1145.168692] Call Trace: [ 1145.168694] __mutex_lock+0x98/0x1310 [ 1145.168696] ? perf_mmap+0x50a/0x1390 [ 1145.168698] ? lock_downgrade+0x740/0x740 [ 1145.168701] ? __ww_mutex_wakeup_for_backoff+0x210/0x210 [ 1145.168704] ? __mutex_unlock_slowpath+0x75/0x770 [ 1145.168706] ? wait_for_completion_io+0x10/0x10 [ 1145.168709] perf_mmap+0x50a/0x1390 [ 1145.168711] ? kmem_cache_alloc+0x35f/0x3c0 [ 1145.168713] mmap_region+0xa1a/0x1220 [ 1145.168715] do_mmap+0x5b3/0xcb0 [ 1145.168717] vm_mmap_pgoff+0x14e/0x1a0 [ 1145.168720] ? vma_is_stack_for_current+0xb0/0xb0 [ 1145.168722] ? __fget+0x2df/0x460 [ 1145.168724] SyS_mmap_pgoff+0x249/0x510 [ 1145.168726] ? find_mergeable_anon_vma+0x230/0x230 [ 1145.168729] ? fput_many+0xe/0x140 [ 1145.168731] ? do_syscall_64+0x4c/0x640 [ 1145.168733] ? align_vdso_addr+0x250/0x250 [ 1145.168735] do_syscall_64+0x1d5/0x640 [ 1145.168738] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 1145.168740] RIP: 0033:0x7f3ee2c79b39 [ 1145.168743] RSP: 002b:00007f3ee2c0a308 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 [ 1145.168748] RAX: ffffffffffffffda RBX: 00007f3ee2d01418 RCX: 00007f3ee2c79b39 [ 1145.168752] RDX: 0000000000000000 RSI: 0000000000002000 RDI: 0000000020395000 [ 1145.168755] RBP: 00007f3ee2d01410 R08: 0000000000000003 R09: 0000000000000000 [ 1145.168758] R10: 0000000000000011 R11: 0000000000000246 R12: 00007f3ee2ccf074 [ 1145.168762] R13: 00007ffd41c5bb5f R14: 00007f3ee2c0a400 R15: 0000000000022000 [ 1145.168763] Code: 05 d1 b2 a7 07 48 8b 15 8a 59 f6 09 48 83 e8 64 48 39 d0 0f 89 60 cd c8 05 48 85 d2 0f 84 57 cd c8 05 5b 5d 41 5c 41 5d 41 5e c3 <48> c7 c0 c0 93 f0 88 48 ba 00 00 00 00 00 fc ff df 48 c1 e8 03 [ 1145.188501] Kernel panic - not syncing: hung_task: blocked tasks [ 1145.436582] CPU: 0 PID: 1533 Comm: khungtaskd Not tainted 4.14.265-syzkaller #0 [ 1145.444022] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1145.453364] Call Trace: [ 1145.455948] dump_stack+0x1b2/0x281 [ 1145.459567] panic+0x1f9/0x42d [ 1145.462751] ? add_taint.cold+0x16/0x16 [ 1145.466726] watchdog+0x5ca/0xb40 [ 1145.470175] ? hungtask_pm_notify+0x50/0x50 [ 1145.474493] kthread+0x30d/0x420 [ 1145.477850] ? kthread_create_on_node+0xd0/0xd0 [ 1145.482515] ret_from_fork+0x24/0x30 [ 1145.486437] Kernel Offset: disabled [ 1145.490053] Rebooting in 86400 seconds..