Warning: Permanently added '10.128.0.21' (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 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program syzkaller login: [ 717.630633] INFO: task syz-executor209:10469 blocked for more than 140 seconds. [ 717.638249] Not tainted 4.19.211-syzkaller #0 [ 717.645352] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 717.654119] syz-executor209 D28648 10469 8113 0x00000004 [ 717.659752] Call Trace: [ 717.663607] __schedule+0x887/0x2040 [ 717.667337] ? io_schedule_timeout+0x140/0x140 [ 717.673005] ? mark_held_locks+0xa6/0xf0 [ 717.677078] ? rwsem_down_read_failed+0x20a/0x390 [ 717.682965] schedule+0x8d/0x1b0 [ 717.686336] rwsem_down_read_failed+0x20a/0x390 [ 717.692053] ? rt_mutex_futex_unlock+0xf0/0xf0 [ 717.696657] call_rwsem_down_read_failed+0x14/0x30 [ 717.702669] down_read+0x44/0x80 [ 717.706045] ? __do_page_fault+0x97f/0xd60 [ 717.710280] __do_page_fault+0x97f/0xd60 [ 717.715803] ? page_fault+0x8/0x30 [ 717.719351] ? trace_hardirqs_off_caller+0x6e/0x210 [ 717.725409] ? spurious_fault+0x840/0x840 [ 717.729602] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 717.735636] ? page_fault+0x8/0x30 [ 717.739186] page_fault+0x1e/0x30 [ 717.743655] RIP: 0033:0x7f113bfadce0 [ 717.747370] Code: Bad RIP value. [ 717.751826] RSP: 002b:00007ffcdb31c068 EFLAGS: 00010246 [ 717.757192] RAX: 0000000000000000 RBX: 0000000000000064 RCX: 0000000000000000 [ 717.765596] RDX: 00007ffcdb31c080 RSI: 0000000000000000 RDI: 0000000000000000 [ 717.774593] RBP: 0000000000000032 R08: 00007ffcdb376000 R09: 0000007d69d503a0 [ 717.782499] R10: 0002be630d7ec935 R11: 0000000000000001 R12: 00007ffcdb31c0e0 [ 717.789768] R13: 00007f113bff441c R14: 00007ffcdb31c100 R15: 00007f113bf294a0 [ 717.798550] INFO: task syz-executor209:10470 blocked for more than 140 seconds. [ 717.806660] Not tainted 4.19.211-syzkaller #0 [ 717.812293] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 717.820256] syz-executor209 D28080 10470 8113 0x80000004 [ 717.827298] Call Trace: [ 717.829899] __schedule+0x887/0x2040 [ 717.834638] ? io_schedule_timeout+0x140/0x140 [ 717.839228] ? mark_held_locks+0xa6/0xf0 [ 717.844357] ? rwsem_down_read_failed+0x20a/0x390 [ 717.849204] schedule+0x8d/0x1b0 [ 717.853586] rwsem_down_read_failed+0x20a/0x390 [ 717.858262] ? rt_mutex_futex_unlock+0xf0/0xf0 [ 717.863967] ? lock_acquire+0x170/0x3c0 [ 717.867948] ? lock_downgrade+0x720/0x720 [ 717.873118] call_rwsem_down_read_failed+0x14/0x30 [ 717.878054] down_read+0x44/0x80 [ 717.882453] ? do_exit+0x6e4/0x2be0 [ 717.886094] do_exit+0x6e4/0x2be0 [ 717.889635] ? futex_wake+0x159/0x480 [ 717.894951] ? mm_update_next_owner+0x650/0x650 [ 717.899629] ? get_signal+0x388/0x1f70 [ 717.904572] ? lock_downgrade+0x720/0x720 [ 717.908725] ? lock_acquire+0x170/0x3c0 [ 717.913768] do_group_exit+0x125/0x310 [ 717.917661] get_signal+0x3f2/0x1f70 [ 717.922430] ? rwsem_optimistic_spin+0x480/0x480 [ 717.927203] do_signal+0x8f/0x1670 [ 717.931772] ? setup_sigcontext+0x820/0x820 [ 717.936095] ? vm_mmap_pgoff+0x1c0/0x200 [ 717.940149] ? vm_mmap_pgoff+0xe8/0x200 [ 717.945499] ? vma_is_stack_for_current+0xc0/0xc0 [ 717.950345] ? do_dup2+0x450/0x450 [ 717.955229] ? __se_sys_futex+0x28f/0x3b0 [ 717.959383] ? __se_sys_futex+0x298/0x3b0 [ 717.965633] ? do_futex+0x1880/0x1880 [ 717.969444] ? exit_to_usermode_loop+0x36/0x2a0 [ 717.975131] exit_to_usermode_loop+0x204/0x2a0 [ 717.979721] do_syscall_64+0x538/0x620 [ 717.984668] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 717.989863] RIP: 0033:0x7f113bf6cb39 [ 717.994607] Code: Bad RIP value. [ 717.997969] RSP: 002b:00007f113bf1e318 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 718.006694] RAX: fffffffffffffe00 RBX: 00007f113bff4408 RCX: 00007f113bf6cb39 [ 718.014722] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f113bff4408 [ 718.022672] RBP: 00007f113bff4400 R08: 0000000000000000 R09: 0000000000000000 [ 718.029940] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f113bfc2074 [ 718.038404] R13: 00007ffcdb31c02f R14: 00007f113bf1e400 R15: 0000000000022000 [ 718.046389] [ 718.046389] Showing all locks held in the system: [ 718.053387] 1 lock held by khungtaskd/1570: [ 718.057702] #0: 00000000154639ae (rcu_read_lock){....}, at: debug_show_all_locks+0x53/0x265 [ 718.067493] 1 lock held by in:imklog/7806: [ 718.073154] #0: 000000004ab0fee3 (&f->f_pos_lock){+.+.}, at: __fdget_pos+0x26f/0x310 [ 718.081946] 1 lock held by syz-executor209/10469: [ 718.086788] #0: 000000001f368e24 (&mm->mmap_sem){++++}, at: __do_page_fault+0x97f/0xd60 [ 718.096144] 1 lock held by syz-executor209/10470: [ 718.101662] #0: 000000001f368e24 (&mm->mmap_sem){++++}, at: do_exit+0x6e4/0x2be0 [ 718.109333] 1 lock held by syz-executor209/10471: [ 718.115247] [ 718.116877] ============================================= [ 718.116877] [ 718.124955] NMI backtrace for cpu 1 [ 718.128590] CPU: 1 PID: 1570 Comm: khungtaskd Not tainted 4.19.211-syzkaller #0 [ 718.136022] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 718.145373] Call Trace: [ 718.147971] dump_stack+0x1fc/0x2ef [ 718.151607] nmi_cpu_backtrace.cold+0x63/0xa2 [ 718.156100] ? lapic_can_unplug_cpu+0x80/0x80 [ 718.160595] nmi_trigger_cpumask_backtrace+0x1a6/0x1f0 [ 718.165878] watchdog+0x991/0xe60 [ 718.169422] ? reset_hung_task_detector+0x30/0x30 [ 718.174268] kthread+0x33f/0x460 [ 718.177635] ? kthread_park+0x180/0x180 [ 718.181605] ret_from_fork+0x24/0x30 [ 718.185418] Sending NMI from CPU 1 to CPUs 0: [ 718.190341] NMI backtrace for cpu 0 [ 718.190347] CPU: 0 PID: 10471 Comm: syz-executor209 Not tainted 4.19.211-syzkaller #0 [ 718.190354] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 718.190358] RIP: 0010:check_memory_region+0x3c/0x170 [ 718.190368] Code: ff 44 0f b6 c2 48 39 c7 0f 86 20 01 00 00 4c 8d 54 37 ff 41 54 48 b8 00 00 00 00 00 fc ff df 4d 89 d1 55 48 89 fd 49 c1 e9 03 <48> c1 ed 03 53 49 01 c1 48 01 c5 49 8d 59 01 48 89 e8 48 89 da 48 [ 718.190372] RSP: 0018:ffff888090fdf998 EFLAGS: 00000a07 [ 718.190380] RAX: dffffc0000000000 RBX: dffffc0000000000 RCX: ffffffff88188864 [ 718.190384] RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff8880900370f0 [ 718.190392] RBP: ffff8880900370f0 R08: 0000000000000000 R09: 1ffff11012006e1e [ 718.190397] R10: ffff8880900370f7 R11: 0000000000000000 R12: 0000000000000000 [ 718.190402] R13: ffff8880900370f0 R14: 0000000000000001 R15: ffffffff8178e153 [ 718.190408] FS: 00007f113befd700(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 [ 718.190412] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 718.190417] CR2: 000055555659e2b8 CR3: 00000000aa62a000 CR4: 00000000003406f0 [ 718.190422] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 718.190427] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 718.190430] Call Trace: [ 718.190433] __mutex_lock+0xe4/0x1190 [ 718.190437] ? perf_mmap+0x693/0x1810 [ 718.190440] ? perf_mmap+0x684/0x1810 [ 718.190443] ? perf_mmap+0x693/0x1810 [ 718.190447] ? mutex_trylock+0x1a0/0x1a0 [ 718.190450] ? __mutex_unlock_slowpath+0xea/0x610 [ 718.190454] ? wait_for_completion_io+0x10/0x10 [ 718.190458] ? check_memory_region+0x51/0x170 [ 718.190461] perf_mmap+0x693/0x1810 [ 718.190465] ? perf_release+0x40/0x40 [ 718.190469] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 718.190472] mmap_region+0xc94/0x16b0 [ 718.190475] ? vm_munmap+0x140/0x140 [ 718.190479] ? get_unmapped_area+0x294/0x3c0 [ 718.190482] do_mmap+0x8e8/0x1080 [ 718.190485] vm_mmap_pgoff+0x197/0x200 [ 718.190489] ? vma_is_stack_for_current+0xc0/0xc0 [ 718.190492] ? do_dup2+0x450/0x450 [ 718.190496] ksys_mmap_pgoff+0x298/0x5a0 [ 718.190499] ? find_mergeable_anon_vma+0x260/0x260 [ 718.190504] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 718.190508] ? trace_hardirqs_off_caller+0x6e/0x210 [ 718.190511] ? do_syscall_64+0x21/0x620 [ 718.190514] do_syscall_64+0xf9/0x620 [ 718.190518] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 718.190522] RIP: 0033:0x7f113bf6cb39 [ 718.190532] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 718.190536] RSP: 002b:00007f113befd308 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 [ 718.190544] RAX: ffffffffffffffda RBX: 00007f113bff4418 RCX: 00007f113bf6cb39 [ 718.190549] RDX: 0000000000000000 RSI: 0000000000002000 RDI: 0000000020395000 [ 718.190554] RBP: 00007f113bff4410 R08: 0000000000000003 R09: 0000000000000000 [ 718.190559] R10: 0000000000000011 R11: 0000000000000246 R12: 00007f113bfc2074 [ 718.190564] R13: 00007ffcdb31c02f R14: 00007f113befd400 R15: 0000000000022000 [ 718.216503] Kernel panic - not syncing: hung_task: blocked tasks [ 718.494151] CPU: 1 PID: 1570 Comm: khungtaskd Not tainted 4.19.211-syzkaller #0 [ 718.501583] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 718.510927] Call Trace: [ 718.513513] dump_stack+0x1fc/0x2ef [ 718.517140] panic+0x26a/0x50e [ 718.520331] ? __warn_printk+0xf3/0xf3 [ 718.524217] ? lapic_can_unplug_cpu+0x80/0x80 [ 718.528708] ? ___preempt_schedule+0x16/0x18 [ 718.533118] ? watchdog+0x991/0xe60 [ 718.536738] ? nmi_trigger_cpumask_backtrace+0x15e/0x1f0 [ 718.542186] watchdog+0x9a2/0xe60 [ 718.545642] ? reset_hung_task_detector+0x30/0x30 [ 718.550484] kthread+0x33f/0x460 [ 718.553846] ? kthread_park+0x180/0x180 [ 718.557817] ret_from_fork+0x24/0x30 [ 718.561910] Kernel Offset: disabled [ 718.565600] Rebooting in 86400 seconds..