[ 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 '10.128.0.74' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 39.120061] FAULT_INJECTION: forcing a failure. [ 39.120061] name failslab, interval 1, probability 0, space 0, times 1 [ 39.131861] CPU: 1 PID: 8018 Comm: syz-executor121 Not tainted 4.14.276-syzkaller #0 [ 39.139718] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.149144] Call Trace: [ 39.151713] dump_stack+0x1b2/0x281 [ 39.155315] should_fail.cold+0x10a/0x149 [ 39.159441] should_failslab+0xd6/0x130 [ 39.163406] kmem_cache_alloc+0x28e/0x3c0 [ 39.167530] prepare_creds+0x39/0x490 [ 39.171319] aa_set_current_onexec+0x1e/0x200 [ 39.175791] aa_change_profile+0x120e/0x2440 [ 39.180186] ? aa_change_hat+0xf60/0xf60 [ 39.184274] ? do_syscall_64+0x1d5/0x640 [ 39.188309] ? entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 39.193649] ? __lock_acquire+0x5fc/0x3f20 [ 39.197869] apparmor_setprocattr+0x972/0xa80 [ 39.202339] ? apparmor_cred_free+0x70/0x70 [ 39.206637] ? aa_file_perm+0x2dd/0xab0 [ 39.210586] ? proc_pid_attr_write+0x1c0/0x320 [ 39.215146] ? __might_fault+0x177/0x1b0 [ 39.219184] security_setprocattr+0x74/0xb0 [ 39.223483] proc_pid_attr_write+0x22b/0x320 [ 39.227873] __vfs_write+0xe4/0x630 [ 39.231476] ? proc_pid_wchan+0xf0/0xf0 [ 39.235421] ? debug_check_no_obj_freed+0x2c0/0x680 [ 39.240408] ? kernel_read+0x110/0x110 [ 39.244273] ? rcu_lockdep_current_cpu_online+0xed/0x140 [ 39.249707] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 39.254710] vfs_write+0x17f/0x4d0 [ 39.258226] SyS_write+0xf2/0x210 [ 39.261738] ? SyS_read+0x210/0x210 [ 39.265337] ? __do_page_fault+0x159/0xad0 [ 39.269546] ? do_syscall_64+0x4c/0x640 [ 39.273491] ? SyS_read+0x210/0x210 [ 39.277090] do_syscall_64+0x1d5/0x640 [ 39.280957] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 39.286124] RIP: 0033:0x7f89de2b86a9 [ 39.289809] RSP: 002b:00007ffd75023658 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 39.297582] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f89de2b86a9 [ 39.304841] RDX: 0000000000000007 RSI: 0000000020000080 RDI: 0000000000000003 [ 39.312183] RBP: 00007ffd75023660 R08: 0000000000000001 R09: 00007f89de270032 [ 39.319434] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 39.326681] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 39.334968] AppArmor WARN aa_audit_file: ((!((&sa)->apparmor_audit_data)->request)): [ 39.335121] ------------[ cut here ]------------ [ 39.347833] WARNING: CPU: 1 PID: 8018 at security/apparmor/file.c:136 aa_audit_file.cold+0x18/0x4f [ 39.356917] Kernel panic - not syncing: panic_on_warn set ... [ 39.356917] [ 39.364256] CPU: 1 PID: 8018 Comm: syz-executor121 Not tainted 4.14.276-syzkaller #0 [ 39.372123] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.381469] Call Trace: [ 39.384037] dump_stack+0x1b2/0x281 [ 39.387663] panic+0x1f9/0x42d [ 39.390829] ? add_taint.cold+0x16/0x16 [ 39.394782] ? aa_audit_file.cold+0x18/0x4f [ 39.399083] ? aa_audit_file.cold+0x18/0x4f [ 39.403388] __warn.cold+0x20/0x44 [ 39.406904] ? ist_end_non_atomic+0x10/0x10 [ 39.411201] ? aa_audit_file.cold+0x18/0x4f [ 39.415499] report_bug+0x208/0x250 [ 39.419104] do_error_trap+0x195/0x2d0 [ 39.422969] ? math_error+0x2d0/0x2d0 [ 39.426748] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 39.431567] invalid_op+0x1b/0x40 [ 39.435088] RIP: 0010:aa_audit_file.cold+0x18/0x4f [ 39.439990] RSP: 0018:ffff8880958577c8 EFLAGS: 00010282 [ 39.445353] RAX: 0000000000000049 RBX: 1ffff11012b0aefc RCX: 0000000000000000 [ 39.452614] RDX: 0000000000000000 RSI: ffff8880b4e7e9b0 RDI: ffffed1012b0aeef [ 39.459860] RBP: ffff8880958579f0 R08: 0000000000000049 R09: 0000000000000000 [ 39.467195] R10: 0000000000000000 R11: 0000000000000000 R12: 00000000fffffff4 [ 39.474507] R13: ffff88823f8b8d80 R14: ffff888095857840 R15: 0000000000000000 [ 39.482400] ? aa_audit_file.cold+0x18/0x4f [ 39.486764] ? file_audit_cb+0x670/0x670 [ 39.491031] ? prepare_creds+0x39/0x490 [ 39.494994] ? rcu_lockdep_current_cpu_online+0xed/0x140 [ 39.500533] ? prepare_creds+0x3c9/0x490 [ 39.504666] aa_change_profile+0xcd3/0x2440 [ 39.508975] ? aa_change_hat+0xf60/0xf60 [ 39.513145] ? do_syscall_64+0x1d5/0x640 [ 39.517313] ? entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 39.522855] ? __lock_acquire+0x5fc/0x3f20 [ 39.527333] apparmor_setprocattr+0x972/0xa80 [ 39.531816] ? apparmor_cred_free+0x70/0x70 [ 39.536221] ? aa_file_perm+0x2dd/0xab0 [ 39.540178] ? proc_pid_attr_write+0x1c0/0x320 [ 39.544745] ? __might_fault+0x177/0x1b0 [ 39.548819] security_setprocattr+0x74/0xb0 [ 39.553216] proc_pid_attr_write+0x22b/0x320 [ 39.557615] __vfs_write+0xe4/0x630 [ 39.561231] ? proc_pid_wchan+0xf0/0xf0 [ 39.565188] ? debug_check_no_obj_freed+0x2c0/0x680 [ 39.570185] ? kernel_read+0x110/0x110 [ 39.574057] ? rcu_lockdep_current_cpu_online+0xed/0x140 [ 39.579500] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 39.584583] vfs_write+0x17f/0x4d0 [ 39.588100] SyS_write+0xf2/0x210 [ 39.591531] ? SyS_read+0x210/0x210 [ 39.595228] ? __do_page_fault+0x159/0xad0 [ 39.599446] ? do_syscall_64+0x4c/0x640 [ 39.603412] ? SyS_read+0x210/0x210 [ 39.607019] do_syscall_64+0x1d5/0x640 [ 39.610899] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 39.616068] RIP: 0033:0x7f89de2b86a9 [ 39.619757] RSP: 002b:00007ffd75023658 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 39.627440] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f89de2b86a9 [ 39.634701] RDX: 0000000000000007 RSI: 0000000020000080 RDI: 0000000000000003 [ 39.641944] RBP: 00007ffd75023660 R08: 0000000000000001 R09: 00007f89de270032 [ 39.649191] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 39.656453] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 39.664049] Kernel Offset: disabled [ 39.667695] Rebooting in 86400 seconds..