Warning: Permanently added '10.128.0.173' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 608.088485] autofs4:pid:8097:autofs_fill_super: called with bogus options executing program [ 613.090430] autofs4:pid:8100:autofs_fill_super: called with bogus options executing program [ 618.091366] autofs4:pid:8102:autofs_fill_super: called with bogus options executing program [ 623.094079] autofs4:pid:8104:autofs_fill_super: called with bogus options executing program [ 628.094837] autofs4:pid:8107:autofs_fill_super: called with bogus options executing program [ 633.095671] autofs4:pid:8109:autofs_fill_super: called with bogus options executing program executing program [ 638.097074] autofs4:pid:8110:autofs_fill_super: called with bogus options [ 638.108338] autofs4:pid:8113:autofs_fill_super: called with bogus options [ 860.977493] INFO: task syz-executor318:8112 blocked for more than 140 seconds. [ 860.985099] Not tainted 4.19.172-syzkaller #0 [ 860.991381] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 860.999626] syz-executor318 D28536 8112 8095 0x00000004 [ 861.005389] Call Trace: [ 861.008047] __schedule+0x887/0x2040 [ 861.011830] ? io_schedule_timeout+0x140/0x140 [ 861.016460] ? lock_downgrade+0x720/0x720 [ 861.020788] ? __mutex_lock+0x458/0x1260 [ 861.024863] schedule+0x8d/0x1b0 [ 861.028408] schedule_preempt_disabled+0xf/0x20 [ 861.033084] __mutex_lock+0x647/0x1260 [ 861.036966] ? lock_acquire+0x170/0x3c0 [ 861.040996] ? __se_sys_acct+0x8c/0x930 [ 861.044971] ? __mutex_add_waiter+0x160/0x160 [ 861.049527] ? __sanitizer_cov_trace_switch+0x4b/0x80 [ 861.054719] ? __phys_addr+0x9a/0x110 [ 861.058850] ? __check_object_size+0x17b/0x3e0 [ 861.063554] ? getname_flags+0x25b/0x590 [ 861.067677] __se_sys_acct+0x8c/0x930 [ 861.071485] do_syscall_64+0xf9/0x620 [ 861.075393] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 861.080646] RIP: 0033:0x43fc09 [ 861.083844] Code: Bad RIP value. [ 861.087419] RSP: 002b:00007fff10542898 EFLAGS: 00000246 ORIG_RAX: 00000000000000a3 [ 861.095169] RAX: ffffffffffffffda RBX: 0030656c69662f2e RCX: 000000000043fc09 [ 861.102528] RDX: ffffffffffffffc0 RSI: 0000000000000000 RDI: 00000000200001c0 [ 861.110277] RBP: 0000000000000000 R08: 00007fff10542a38 R09: 00007fff10542a38 [ 861.117586] R10: 00007fff10542a38 R11: 0000000000000246 R12: 00007fff105428ac [ 861.124874] R13: 431bde82d7b634db R14: 00000000004ad018 R15: 0000000000400488 [ 861.132230] [ 861.132230] Showing all locks held in the system: [ 861.138625] 1 lock held by khungtaskd/1566: [ 861.142935] #0: 00000000b8b1d31f (rcu_read_lock){....}, at: debug_show_all_locks+0x53/0x265 [ 861.151646] 1 lock held by in:imklog/7791: [ 861.155879] #0: 00000000890973f3 (&f->f_pos_lock){+.+.}, at: __fdget_pos+0x26f/0x310 [ 861.164170] 1 lock held by syz-executor318/8111: [ 861.168996] #0: 00000000a098d295 (acct_on_mutex){+.+.}, at: __se_sys_acct+0x8c/0x930 [ 861.176986] 1 lock held by syz-executor318/8112: [ 861.181807] #0: 00000000a098d295 (acct_on_mutex){+.+.}, at: __se_sys_acct+0x8c/0x930 [ 861.189888] [ 861.191521] ============================================= [ 861.191521] [ 861.198607] NMI backtrace for cpu 1 [ 861.202244] CPU: 1 PID: 1566 Comm: khungtaskd Not tainted 4.19.172-syzkaller #0 [ 861.209682] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 861.219050] Call Trace: [ 861.221653] dump_stack+0x1fc/0x2ef [ 861.225272] nmi_cpu_backtrace.cold+0x63/0xa2 [ 861.229756] ? lapic_can_unplug_cpu+0x80/0x80 [ 861.234237] nmi_trigger_cpumask_backtrace+0x1a6/0x1f0 [ 861.239505] watchdog+0x991/0xe60 [ 861.242961] ? reset_hung_task_detector+0x30/0x30 [ 861.248746] kthread+0x33f/0x460 [ 861.252126] ? kthread_park+0x180/0x180 [ 861.256089] ret_from_fork+0x24/0x30 [ 861.259904] Sending NMI from CPU 1 to CPUs 0: [ 861.265001] NMI backtrace for cpu 0 [ 861.265007] CPU: 0 PID: 4681 Comm: systemd-journal Not tainted 4.19.172-syzkaller #0 [ 861.265013] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 861.265016] RIP: 0010:trace_hardirqs_off+0x4/0x200 [ 861.265026] Code: ff 48 89 df e8 0d 90 30 00 eb 93 e8 06 90 30 00 e9 6a ff ff ff 4c 89 e7 e8 f9 8f 30 00 e9 34 ff ff ff 0f 1f 40 00 41 56 41 55 <41> 54 55 53 e8 63 d8 fa ff 65 8b 1d 4c ea 9a 7e 31 ff 89 de e8 c3 [ 861.265030] RSP: 0018:ffff8880a15779e0 EFLAGS: 00000082 [ 861.265037] RAX: 0000000000000286 RBX: 00000000006080c0 RCX: 0000000000000001 [ 861.265042] RDX: 0000000000000000 RSI: 00000000ffffffff RDI: ffff8880a156c2e4 [ 861.265046] RBP: 00000000006080c0 R08: ffffffff8cd1b3c0 R09: 0000000000000000 [ 861.265051] R10: 0000000000000005 R11: 00000000d5f8e018 R12: 0000000000200000 [ 861.265055] R13: ffff88813bff04c0 R14: 0000000000000048 R15: ffff88813bff04c0 [ 861.265060] FS: 00007fda975f68c0(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 [ 861.265064] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 861.265069] CR2: 00007fda949c6028 CR3: 00000000a1973000 CR4: 00000000001406f0 [ 861.265074] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 861.265078] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 861.265081] Call Trace: [ 861.265084] kmem_cache_alloc_trace+0x9b/0x380 [ 861.265088] apparmor_file_alloc_security+0x394/0xad0 [ 861.265091] ? apparmor_file_receive+0x160/0x160 [ 861.265094] ? __alloc_file+0x21/0x330 [ 861.265097] security_file_alloc+0x40/0x90 [ 861.265100] __alloc_file+0xc9/0x330 [ 861.265104] alloc_empty_file+0x6d/0x170 [ 861.265107] path_openat+0xe9/0x2df0 [ 861.265110] ? __lock_acquire+0x6de/0x3ff0 [ 861.265113] ? path_lookupat+0x8d0/0x8d0 [ 861.265116] ? __put_seccomp_filter+0xa0/0xa0 [ 861.265119] ? mark_held_locks+0xf0/0xf0 [ 861.265122] do_filp_open+0x18c/0x3f0 [ 861.265125] ? may_open_dev+0xf0/0xf0 [ 861.265128] ? __alloc_fd+0x28d/0x570 [ 861.265131] ? lock_downgrade+0x720/0x720 [ 861.265133] ? lock_acquire+0x170/0x3c0 [ 861.265136] ? __alloc_fd+0x34/0x570 [ 861.265139] ? do_raw_spin_unlock+0x171/0x230 [ 861.265142] ? _raw_spin_unlock+0x29/0x40 [ 861.265145] ? __alloc_fd+0x28d/0x570 [ 861.265148] do_sys_open+0x3b3/0x520 [ 861.265151] ? filp_open+0x70/0x70 [ 861.265154] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 861.265159] ? trace_hardirqs_off_caller+0x6e/0x210 [ 861.265162] ? do_syscall_64+0x21/0x620 [ 861.265165] do_syscall_64+0xf9/0x620 [ 861.265168] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 861.265172] RIP: 0033:0x7fda96b86840 [ 861.265181] Code: 73 01 c3 48 8b 0d 68 77 20 00 f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 83 3d 89 bb 20 00 00 75 10 b8 02 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 31 c3 48 83 ec 08 e8 1e f6 ff ff 48 89 04 24 [ 861.265185] RSP: 002b:00007ffc0a830d18 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 [ 861.265193] RAX: ffffffffffffffda RBX: 00007ffc0a831020 RCX: 00007fda96b86840 [ 861.265197] RDX: 00000000000001a0 RSI: 0000000000080042 RDI: 000056268a9fdc50 [ 861.265202] RBP: 000000000000000d R08: 000000000000c0ff R09: 00000000ffffffff [ 861.265206] R10: 0000000000000069 R11: 0000000000000246 R12: 00000000ffffffff [ 861.265211] R13: 000056268a9f1040 R14: 00007ffc0a830fe0 R15: 000056268a9fdca0 [ 861.266035] Kernel panic - not syncing: hung_task: blocked tasks [ 861.580693] CPU: 1 PID: 1566 Comm: khungtaskd Not tainted 4.19.172-syzkaller #0 [ 861.588123] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 861.597458] Call Trace: [ 861.600041] dump_stack+0x1fc/0x2ef [ 861.603653] panic+0x26a/0x50e [ 861.606863] ? __warn_printk+0xf3/0xf3 [ 861.610745] ? lapic_can_unplug_cpu+0x80/0x80 [ 861.615222] ? ___preempt_schedule+0x16/0x18 [ 861.619632] ? watchdog+0x991/0xe60 [ 861.623301] ? nmi_trigger_cpumask_backtrace+0x15e/0x1f0 [ 861.628759] watchdog+0x9a2/0xe60 [ 861.632203] ? reset_hung_task_detector+0x30/0x30 [ 861.637032] kthread+0x33f/0x460 [ 861.640395] ? kthread_park+0x180/0x180 [ 861.644366] ret_from_fork+0x24/0x30 [ 861.649131] Kernel Offset: disabled [ 861.652774] Rebooting in 86400 seconds..