[ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Load/Save RF Kill Switch Status. [ OK ] Started Update UTMP about System Runlevel Changes. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.10.1' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 27.003894] FAULT_INJECTION: forcing a failure. [ 27.003894] name failslab, interval 1, probability 0, space 0, times 1 [ 27.015226] CPU: 1 PID: 7980 Comm: syz-executor330 Not tainted 4.14.276-syzkaller #0 [ 27.023101] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 27.032438] Call Trace: [ 27.035006] dump_stack+0x1b2/0x281 [ 27.038621] should_fail.cold+0x10a/0x149 [ 27.042750] should_failslab+0xd6/0x130 [ 27.046711] kmem_cache_alloc+0x28e/0x3c0 [ 27.050846] prepare_creds+0x39/0x490 [ 27.054635] aa_set_current_onexec+0x1e/0x200 [ 27.059139] aa_change_profile+0x120e/0x2440 [ 27.063534] ? aa_change_hat+0xf60/0xf60 [ 27.067579] ? do_syscall_64+0x1d5/0x640 [ 27.071618] ? entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 27.076965] ? __lock_acquire+0x5fc/0x3f20 [ 27.081183] apparmor_setprocattr+0x972/0xa80 [ 27.085671] ? apparmor_cred_free+0x70/0x70 [ 27.089972] ? aa_file_perm+0x2dd/0xab0 [ 27.093936] ? proc_pid_attr_write+0x1c0/0x320 [ 27.098500] ? __might_fault+0x177/0x1b0 [ 27.102543] security_setprocattr+0x74/0xb0 [ 27.106845] proc_pid_attr_write+0x22b/0x320 [ 27.111235] __vfs_write+0xe4/0x630 [ 27.114838] ? proc_pid_wchan+0xf0/0xf0 [ 27.118793] ? debug_check_no_obj_freed+0x2c0/0x680 [ 27.123838] ? kernel_read+0x110/0x110 [ 27.127727] ? rcu_lockdep_current_cpu_online+0xed/0x140 [ 27.133158] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 27.138155] vfs_write+0x17f/0x4d0 [ 27.141679] SyS_write+0xf2/0x210 [ 27.145116] ? SyS_read+0x210/0x210 [ 27.148726] ? __do_page_fault+0x159/0xad0 [ 27.152939] ? do_syscall_64+0x4c/0x640 [ 27.156892] ? SyS_read+0x210/0x210 [ 27.160499] do_syscall_64+0x1d5/0x640 [ 27.164371] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 27.169540] RIP: 0033:0x7ff7797436a9 [ 27.173237] RSP: 002b:00007fff01fc9258 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 27.180925] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007ff7797436a9 [ 27.188182] RDX: 0000000000000007 RSI: 0000000020000040 RDI: 0000000000000003 [ 27.195430] RBP: 00007fff01fc9260 R08: 0000000000000001 R09: 00007ff779700032 [ 27.202680] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 27.209961] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 27.218919] AppArmor WARN aa_audit_file: ((!((&sa)->apparmor_audit_data)->request)): [ 27.219066] ------------[ cut here ]------------ [ 27.231803] WARNING: CPU: 1 PID: 7980 at security/apparmor/file.c:136 aa_audit_file.cold+0x18/0x4f [ 27.240896] Kernel panic - not syncing: panic_on_warn set ... [ 27.240896] [ 27.248264] CPU: 1 PID: 7980 Comm: syz-executor330 Not tainted 4.14.276-syzkaller #0 [ 27.256125] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 27.265467] Call Trace: [ 27.268049] dump_stack+0x1b2/0x281 [ 27.271661] panic+0x1f9/0x42d [ 27.274837] ? add_taint.cold+0x16/0x16 [ 27.278796] ? aa_audit_file.cold+0x18/0x4f [ 27.283100] ? aa_audit_file.cold+0x18/0x4f [ 27.287401] __warn.cold+0x20/0x44 [ 27.290923] ? ist_end_non_atomic+0x10/0x10 [ 27.295246] ? aa_audit_file.cold+0x18/0x4f [ 27.299547] report_bug+0x208/0x250 [ 27.303157] do_error_trap+0x195/0x2d0 [ 27.307024] ? math_error+0x2d0/0x2d0 [ 27.310810] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 27.315635] invalid_op+0x1b/0x40 [ 27.319070] RIP: 0010:aa_audit_file.cold+0x18/0x4f [ 27.323975] RSP: 0018:ffff888095e4f7c8 EFLAGS: 00010282 [ 27.329318] RAX: 0000000000000049 RBX: 1ffff11012bc9efc RCX: 0000000000000000 [ 27.336570] RDX: 0000000000000000 RSI: ffff888097282c30 RDI: ffffed1012bc9eef [ 27.343820] RBP: ffff888095e4f9f0 R08: 0000000000000049 R09: 0000000000000000 [ 27.351069] R10: 0000000000000000 R11: 0000000000000000 R12: 00000000fffffff4 [ 27.358340] R13: ffff88823f8b8d80 R14: ffff888095e4f840 R15: 0000000000000000 [ 27.365606] ? aa_audit_file.cold+0x18/0x4f [ 27.369909] ? file_audit_cb+0x670/0x670 [ 27.373951] ? prepare_creds+0x39/0x490 [ 27.377905] ? rcu_lockdep_current_cpu_online+0xed/0x140 [ 27.383336] ? prepare_creds+0x3c9/0x490 [ 27.387394] aa_change_profile+0xcd3/0x2440 [ 27.392018] ? aa_change_hat+0xf60/0xf60 [ 27.397964] ? do_syscall_64+0x1d5/0x640 [ 27.402020] ? entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 27.407372] ? __lock_acquire+0x5fc/0x3f20 [ 27.411593] apparmor_setprocattr+0x972/0xa80 [ 27.416071] ? apparmor_cred_free+0x70/0x70 [ 27.420396] ? aa_file_perm+0x2dd/0xab0 [ 27.424356] ? proc_pid_attr_write+0x1c0/0x320 [ 27.428921] ? __might_fault+0x177/0x1b0 [ 27.432966] security_setprocattr+0x74/0xb0 [ 27.437274] proc_pid_attr_write+0x22b/0x320 [ 27.441662] __vfs_write+0xe4/0x630 [ 27.445268] ? proc_pid_wchan+0xf0/0xf0 [ 27.449222] ? debug_check_no_obj_freed+0x2c0/0x680 [ 27.454218] ? kernel_read+0x110/0x110 [ 27.458104] ? rcu_lockdep_current_cpu_online+0xed/0x140 [ 27.463554] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 27.468560] vfs_write+0x17f/0x4d0 [ 27.472089] SyS_write+0xf2/0x210 [ 27.475525] ? SyS_read+0x210/0x210 [ 27.479150] ? __do_page_fault+0x159/0xad0 [ 27.483369] ? do_syscall_64+0x4c/0x640 [ 27.487327] ? SyS_read+0x210/0x210 [ 27.490965] do_syscall_64+0x1d5/0x640 [ 27.494843] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 27.500014] RIP: 0033:0x7ff7797436a9 [ 27.503702] RSP: 002b:00007fff01fc9258 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 27.511396] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007ff7797436a9 [ 27.518649] RDX: 0000000000000007 RSI: 0000000020000040 RDI: 0000000000000003 [ 27.525905] RBP: 00007fff01fc9260 R08: 0000000000000001 R09: 00007ff779700032 [ 27.533159] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 27.540413] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 27.547992] Kernel Offset: disabled [ 27.551652] Rebooting in 86400 seconds..