[ OK ] Started Getty on tty2. [ OK ] Started Serial Getty on ttyS0. [ OK ] Started Getty on tty1. [ OK ] Reached target Login Prompts. [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Update UTMP about System Runlevel Changes. Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.1.51' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 28.066412] FAULT_INJECTION: forcing a failure. [ 28.066412] name failslab, interval 1, probability 0, space 0, times 1 [ 28.077804] CPU: 1 PID: 7971 Comm: syz-executor144 Not tainted 4.14.225-syzkaller #0 [ 28.085696] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 28.095026] Call Trace: [ 28.097597] dump_stack+0x1b2/0x281 [ 28.101203] should_fail.cold+0x10a/0x149 [ 28.105329] should_failslab+0xd6/0x130 [ 28.109296] kmem_cache_alloc+0x28e/0x3c0 [ 28.113420] prepare_creds+0x39/0x490 [ 28.117217] aa_set_current_onexec+0x1e/0x200 [ 28.121690] aa_change_profile+0x120e/0x2440 [ 28.126079] ? aa_change_hat+0xf40/0xf40 [ 28.130139] ? do_syscall_64+0x1d5/0x640 [ 28.134204] ? entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 28.139555] ? __lock_acquire+0x5fc/0x3f20 [ 28.143789] apparmor_setprocattr+0x972/0xa80 [ 28.148265] ? apparmor_cred_free+0x70/0x70 [ 28.152569] ? proc_pid_attr_write+0x152/0x280 [ 28.157274] ? __might_fault+0x177/0x1b0 [ 28.161312] security_setprocattr+0x74/0xb0 [ 28.165614] proc_pid_attr_write+0x1bd/0x280 [ 28.170009] __vfs_write+0xe4/0x630 [ 28.173624] ? proc_pid_wchan+0xf0/0xf0 [ 28.177575] ? debug_check_no_obj_freed+0x2c0/0x680 [ 28.182572] ? kernel_read+0x110/0x110 [ 28.186440] ? rcu_lockdep_current_cpu_online+0xed/0x140 [ 28.191865] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 28.196859] vfs_write+0x17f/0x4d0 [ 28.200376] SyS_write+0xf2/0x210 [ 28.203807] ? SyS_read+0x210/0x210 [ 28.207412] ? __do_page_fault+0x159/0xad0 [ 28.211620] ? do_syscall_64+0x4c/0x640 [ 28.215571] ? SyS_read+0x210/0x210 [ 28.219174] do_syscall_64+0x1d5/0x640 [ 28.223041] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 28.228217] RIP: 0033:0x43f589 [ 28.231383] RSP: 002b:00007ffc39a913c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 28.239069] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 000000000043f589 [ 28.246314] RDX: 0000000000000007 RSI: 00000000200000c0 RDI: 0000000000000003 [ 28.253576] RBP: 00007ffc39a913d0 R08: 0000000000000001 R09: 0000000000400032 [ 28.260824] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 28.268069] R13: 0000000000000000 R14: 00000000004ad018 R15: 0000000000400488 [ 28.276267] AppArmor WARN aa_audit_file: ((!((&sa)->apparmor_audit_data)->request)): [ 28.276438] ------------[ cut here ]------------ [ 28.289157] WARNING: CPU: 1 PID: 7971 at security/apparmor/file.c:136 aa_audit_file.cold+0x18/0x4f [ 28.298266] Kernel panic - not syncing: panic_on_warn set ... [ 28.298266] [ 28.305604] CPU: 1 PID: 7971 Comm: syz-executor144 Not tainted 4.14.225-syzkaller #0 [ 28.313460] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 28.322802] Call Trace: [ 28.325377] dump_stack+0x1b2/0x281 [ 28.328982] panic+0x1f9/0x42d [ 28.332150] ? add_taint.cold+0x16/0x16 [ 28.336100] ? aa_audit_file.cold+0x18/0x4f [ 28.340397] ? aa_audit_file.cold+0x18/0x4f [ 28.344696] __warn.cold+0x20/0x44 [ 28.348214] ? ist_end_non_atomic+0x10/0x10 [ 28.352509] ? aa_audit_file.cold+0x18/0x4f [ 28.356813] report_bug+0x208/0x250 [ 28.360418] do_error_trap+0x195/0x2d0 [ 28.364280] ? math_error+0x2d0/0x2d0 [ 28.368073] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 28.378363] invalid_op+0x1b/0x40 [ 28.381793] RIP: 0010:aa_audit_file.cold+0x18/0x4f [ 28.386693] RSP: 0018:ffff8880960ef7d0 EFLAGS: 00010282 [ 28.392032] RAX: 0000000000000049 RBX: 1ffff11012c1defd RCX: 0000000000000000 [ 28.399278] RDX: 0000000000000000 RSI: ffff8880b56e0c70 RDI: ffffed1012c1def0 [ 28.406522] RBP: ffff8880960ef9f8 R08: 0000000000000049 R09: 0000000000000000 [ 28.413768] R10: 0000000000000000 R11: 0000000000000000 R12: 00000000fffffff4 [ 28.421011] R13: ffff88823f8b8d80 R14: ffff8880960ef848 R15: 0000000000000000 [ 28.428268] ? file_audit_cb+0x670/0x670 [ 28.432320] ? prepare_creds+0x39/0x490 [ 28.436272] ? rcu_lockdep_current_cpu_online+0xed/0x140 [ 28.441701] ? prepare_creds+0x3c9/0x490 [ 28.445741] aa_change_profile+0xcd3/0x2440 [ 28.450043] ? aa_change_hat+0xf40/0xf40 [ 28.454086] ? do_syscall_64+0x1d5/0x640 [ 28.458214] ? entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 28.463558] ? __lock_acquire+0x5fc/0x3f20 [ 28.467773] apparmor_setprocattr+0x972/0xa80 [ 28.472246] ? apparmor_cred_free+0x70/0x70 [ 28.476551] ? proc_pid_attr_write+0x152/0x280 [ 28.481112] ? __might_fault+0x177/0x1b0 [ 28.485149] security_setprocattr+0x74/0xb0 [ 28.489448] proc_pid_attr_write+0x1bd/0x280 [ 28.493836] __vfs_write+0xe4/0x630 [ 28.497466] ? proc_pid_wchan+0xf0/0xf0 [ 28.501430] ? debug_check_no_obj_freed+0x2c0/0x680 [ 28.506435] ? kernel_read+0x110/0x110 [ 28.510299] ? rcu_lockdep_current_cpu_online+0xed/0x140 [ 28.515723] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 28.520714] vfs_write+0x17f/0x4d0 [ 28.524229] SyS_write+0xf2/0x210 [ 28.527657] ? SyS_read+0x210/0x210 [ 28.531259] ? __do_page_fault+0x159/0xad0 [ 28.535468] ? do_syscall_64+0x4c/0x640 [ 28.539442] ? SyS_read+0x210/0x210 [ 28.543041] do_syscall_64+0x1d5/0x640 [ 28.546918] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 28.552169] RIP: 0033:0x43f589 [ 28.555333] RSP: 002b:00007ffc39a913c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 28.563017] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 000000000043f589 [ 28.570262] RDX: 0000000000000007 RSI: 00000000200000c0 RDI: 0000000000000003 [ 28.577509] RBP: 00007ffc39a913d0 R08: 0000000000000001 R09: 0000000000400032 [ 28.584874] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 28.592205] R13: 0000000000000000 R14: 00000000004ad018 R15: 0000000000400488 [ 28.600208] Kernel Offset: disabled [ 28.603859] Rebooting in 86400 seconds..