[ OK ] Started Getty on tty6. [ OK ] Started Getty on tty5. [ OK ] Started Getty on tty4. [ OK ] Started Getty on tty3. [ 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... Starting Load/Save RF Kill Switch Status... [ OK ] Started Update UTMP about System Runlevel Changes. [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.1.50' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 27.565893] FAULT_INJECTION: forcing a failure. [ 27.565893] name failslab, interval 1, probability 0, space 0, times 1 [ 27.577486] CPU: 1 PID: 7959 Comm: syz-executor295 Not tainted 4.14.261-syzkaller #0 [ 27.585345] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 27.594675] Call Trace: [ 27.597241] dump_stack+0x1b2/0x281 [ 27.600848] should_fail.cold+0x10a/0x149 [ 27.604976] should_failslab+0xd6/0x130 [ 27.608927] kmem_cache_alloc+0x28e/0x3c0 [ 27.613054] prepare_creds+0x39/0x490 [ 27.616834] aa_set_current_onexec+0x1e/0x200 [ 27.621307] aa_change_profile+0x120e/0x2440 [ 27.625693] ? aa_change_hat+0xf60/0xf60 [ 27.629734] ? do_syscall_64+0x1d5/0x640 [ 27.633771] ? entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 27.639109] ? __lock_acquire+0x5fc/0x3f20 [ 27.643362] apparmor_setprocattr+0x972/0xa80 [ 27.647833] ? apparmor_cred_free+0x70/0x70 [ 27.652159] ? aa_file_perm+0x2dd/0xab0 [ 27.656116] ? proc_pid_attr_write+0x1c0/0x320 [ 27.660675] ? __might_fault+0x177/0x1b0 [ 27.664715] security_setprocattr+0x74/0xb0 [ 27.669013] proc_pid_attr_write+0x22b/0x320 [ 27.673394] __vfs_write+0xe4/0x630 [ 27.676996] ? proc_pid_wchan+0xf0/0xf0 [ 27.680951] ? debug_check_no_obj_freed+0x2c0/0x680 [ 27.685951] ? kernel_read+0x110/0x110 [ 27.689822] ? rcu_lockdep_current_cpu_online+0xed/0x140 [ 27.695254] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 27.700249] vfs_write+0x17f/0x4d0 [ 27.703769] SyS_write+0xf2/0x210 [ 27.707202] ? SyS_read+0x210/0x210 [ 27.710805] ? __do_page_fault+0x159/0xad0 [ 27.715275] ? do_syscall_64+0x4c/0x640 [ 27.719223] ? SyS_read+0x210/0x210 [ 27.722826] do_syscall_64+0x1d5/0x640 [ 27.726690] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 27.731853] RIP: 0033:0x7fafa7d1b6a9 [ 27.735539] RSP: 002b:00007ffe8dd0ac98 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 27.743263] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fafa7d1b6a9 [ 27.750518] RDX: 000000000000000b RSI: 00000000200000c0 RDI: 0000000000000003 [ 27.757762] RBP: 00007ffe8dd0aca0 R08: 0000000000000001 R09: 00007fafa7cd0032 [ 27.765003] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 27.772247] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 27.779925] AppArmor WARN aa_audit_file: ((!((&sa)->apparmor_audit_data)->request)): [ 27.780062] ------------[ cut here ]------------ [ 27.792770] WARNING: CPU: 1 PID: 7959 at security/apparmor/file.c:136 aa_audit_file.cold+0x18/0x4f [ 27.801849] Kernel panic - not syncing: panic_on_warn set ... [ 27.801849] [ 27.809186] CPU: 1 PID: 7959 Comm: syz-executor295 Not tainted 4.14.261-syzkaller #0 [ 27.817038] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 27.826366] Call Trace: [ 27.828932] dump_stack+0x1b2/0x281 [ 27.832537] panic+0x1f9/0x42d [ 27.835710] ? add_taint.cold+0x16/0x16 [ 27.839660] ? aa_audit_file.cold+0x18/0x4f [ 27.843955] ? aa_audit_file.cold+0x18/0x4f [ 27.848249] __warn.cold+0x20/0x44 [ 27.851766] ? ist_end_non_atomic+0x10/0x10 [ 27.856061] ? aa_audit_file.cold+0x18/0x4f [ 27.860357] report_bug+0x208/0x250 [ 27.863961] do_error_trap+0x195/0x2d0 [ 27.867822] ? math_error+0x2d0/0x2d0 [ 27.871606] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 27.876427] invalid_op+0x1b/0x40 [ 27.879856] RIP: 0010:aa_audit_file.cold+0x18/0x4f [ 27.884756] RSP: 0018:ffff8880968c77c8 EFLAGS: 00010282 [ 27.890096] RAX: 0000000000000049 RBX: 1ffff11012d18efc RCX: 0000000000000000 [ 27.897338] RDX: 0000000000000000 RSI: ffff8880b013aef0 RDI: ffffed1012d18eef [ 27.904582] RBP: ffff8880968c79f0 R08: 0000000000000049 R09: 0000000000000000 [ 27.911826] R10: 0000000000000000 R11: 0000000000000000 R12: 00000000fffffff4 [ 27.919073] R13: ffff88823f8b8d80 R14: ffff8880968c7840 R15: 0000000000000000 [ 27.926331] ? aa_audit_file.cold+0x18/0x4f [ 27.930625] ? file_audit_cb+0x670/0x670 [ 27.934664] ? prepare_creds+0x39/0x490 [ 27.938619] ? rcu_lockdep_current_cpu_online+0xed/0x140 [ 27.944047] ? prepare_creds+0x3c9/0x490 [ 27.948104] aa_change_profile+0xcd3/0x2440 [ 27.952405] ? aa_change_hat+0xf60/0xf60 [ 27.956443] ? do_syscall_64+0x1d5/0x640 [ 27.960480] ? entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 27.965821] ? __lock_acquire+0x5fc/0x3f20 [ 27.970033] apparmor_setprocattr+0x972/0xa80 [ 27.974502] ? apparmor_cred_free+0x70/0x70 [ 27.978797] ? aa_file_perm+0x2dd/0xab0 [ 27.982746] ? proc_pid_attr_write+0x1c0/0x320 [ 27.987307] ? __might_fault+0x177/0x1b0 [ 27.991346] security_setprocattr+0x74/0xb0 [ 27.995643] proc_pid_attr_write+0x22b/0x320 [ 28.000026] __vfs_write+0xe4/0x630 [ 28.003627] ? proc_pid_wchan+0xf0/0xf0 [ 28.007577] ? debug_check_no_obj_freed+0x2c0/0x680 [ 28.012564] ? kernel_read+0x110/0x110 [ 28.016431] ? rcu_lockdep_current_cpu_online+0xed/0x140 [ 28.021859] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 28.026850] vfs_write+0x17f/0x4d0 [ 28.030365] SyS_write+0xf2/0x210 [ 28.033793] ? SyS_read+0x210/0x210 [ 28.037396] ? __do_page_fault+0x159/0xad0 [ 28.041605] ? do_syscall_64+0x4c/0x640 [ 28.045554] ? SyS_read+0x210/0x210 [ 28.049155] do_syscall_64+0x1d5/0x640 [ 28.053021] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 28.058182] RIP: 0033:0x7fafa7d1b6a9 [ 28.061867] RSP: 002b:00007ffe8dd0ac98 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 28.069546] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fafa7d1b6a9 [ 28.076793] RDX: 000000000000000b RSI: 00000000200000c0 RDI: 0000000000000003 [ 28.084040] RBP: 00007ffe8dd0aca0 R08: 0000000000000001 R09: 00007fafa7cd0032 [ 28.091282] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 28.098525] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 28.106192] Kernel Offset: disabled [ 28.109843] Rebooting in 86400 seconds..