[ 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. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.1.68' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 27.537552] FAULT_INJECTION: forcing a failure. [ 27.537552] name failslab, interval 1, probability 0, space 0, times 1 [ 27.549151] CPU: 1 PID: 7960 Comm: syz-executor184 Not tainted 4.14.282-syzkaller #0 [ 27.557107] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 27.566448] Call Trace: [ 27.569015] dump_stack+0x1b2/0x281 [ 27.572635] should_fail.cold+0x10a/0x149 [ 27.576768] should_failslab+0xd6/0x130 [ 27.580718] kmem_cache_alloc+0x28e/0x3c0 [ 27.584846] prepare_creds+0x39/0x490 [ 27.588622] aa_set_current_onexec+0x1e/0x200 [ 27.593093] aa_change_profile+0x120e/0x2440 [ 27.597480] ? aa_change_hat+0xf60/0xf60 [ 27.601520] ? do_syscall_64+0x1d5/0x640 [ 27.605567] ? entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 27.610918] ? __lock_acquire+0x5fc/0x3f20 [ 27.615131] apparmor_setprocattr+0x98c/0xa80 [ 27.619620] ? apparmor_cred_free+0x70/0x70 [ 27.623917] ? aa_file_perm+0x2dd/0xab0 [ 27.627868] ? proc_pid_attr_write+0x1c0/0x320 [ 27.632428] ? __might_fault+0x177/0x1b0 [ 27.636483] security_setprocattr+0x74/0xb0 [ 27.640804] proc_pid_attr_write+0x22b/0x320 [ 27.645188] __vfs_write+0xe4/0x630 [ 27.648787] ? proc_pid_wchan+0xf0/0xf0 [ 27.652808] ? debug_check_no_obj_freed+0x2c0/0x680 [ 27.657816] ? kernel_read+0x110/0x110 [ 27.661699] ? rcu_lockdep_current_cpu_online+0xed/0x140 [ 27.667144] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 27.672142] vfs_write+0x17f/0x4d0 [ 27.675663] SyS_write+0xf2/0x210 [ 27.679205] ? SyS_read+0x210/0x210 [ 27.682819] ? __do_page_fault+0x159/0xad0 [ 27.687063] ? do_syscall_64+0x4c/0x640 [ 27.691016] ? SyS_read+0x210/0x210 [ 27.694621] do_syscall_64+0x1d5/0x640 [ 27.698501] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 27.703680] RIP: 0033:0x7f8c5d7da6a9 [ 27.707369] RSP: 002b:00007fff0ab5dc58 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 27.715068] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f8c5d7da6a9 [ 27.722310] RDX: 0000000000000008 RSI: 0000000020000080 RDI: 0000000000000003 [ 27.729555] RBP: 00007fff0ab5dc60 R08: 0000000000000001 R09: 00007f8c5d790032 [ 27.736802] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 27.744144] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 27.760123] AppArmor WARN aa_audit_file: ((!((&sa)->apparmor_audit_data)->request)): [ 27.760282] ------------[ cut here ]------------ [ 27.773016] WARNING: CPU: 0 PID: 7960 at security/apparmor/file.c:136 aa_audit_file.cold+0x18/0x4f [ 27.782102] Kernel panic - not syncing: panic_on_warn set ... [ 27.782102] [ 27.789448] CPU: 0 PID: 7960 Comm: syz-executor184 Not tainted 4.14.282-syzkaller #0 [ 27.797326] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 27.806665] Call Trace: [ 27.809246] dump_stack+0x1b2/0x281 [ 27.812855] panic+0x1f9/0x42d [ 27.816020] ? add_taint.cold+0x16/0x16 [ 27.820069] ? aa_audit_file.cold+0x18/0x4f [ 27.824378] ? aa_audit_file.cold+0x18/0x4f [ 27.828686] __warn.cold+0x20/0x44 [ 27.832202] ? ist_end_non_atomic+0x10/0x10 [ 27.836499] ? aa_audit_file.cold+0x18/0x4f [ 27.840795] report_bug+0x208/0x250 [ 27.844407] do_error_trap+0x195/0x2d0 [ 27.848270] ? math_error+0x2d0/0x2d0 [ 27.852050] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 27.856882] invalid_op+0x1b/0x40 [ 27.860311] RIP: 0010:aa_audit_file.cold+0x18/0x4f [ 27.865209] RSP: 0018:ffff88808d5d77c8 EFLAGS: 00010282 [ 27.870547] RAX: 0000000000000049 RBX: 1ffff11011abaefc RCX: 0000000000000000 [ 27.877788] RDX: 0000000000000000 RSI: ffff8880974cee70 RDI: ffffed1011abaeef [ 27.885030] RBP: ffff88808d5d79f0 R08: 0000000000000049 R09: 0000000000000000 [ 27.892273] R10: 0000000000000000 R11: 0000000000000000 R12: 00000000fffffff4 [ 27.899516] R13: ffff88823f8b8d80 R14: ffff88808d5d7840 R15: 0000000000000000 [ 27.906768] ? aa_audit_file.cold+0x18/0x4f [ 27.911063] ? file_audit_cb+0x670/0x670 [ 27.915107] ? prepare_creds+0x39/0x490 [ 27.919057] ? rcu_lockdep_current_cpu_online+0xed/0x140 [ 27.924483] ? prepare_creds+0x3c9/0x490 [ 27.928530] aa_change_profile+0xcd3/0x2440 [ 27.932830] ? aa_change_hat+0xf60/0xf60 [ 27.936881] ? do_syscall_64+0x1d5/0x640 [ 27.940920] ? entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 27.946257] ? __lock_acquire+0x5fc/0x3f20 [ 27.950482] apparmor_setprocattr+0x98c/0xa80 [ 27.954957] ? apparmor_cred_free+0x70/0x70 [ 27.959260] ? aa_file_perm+0x2dd/0xab0 [ 27.963214] ? proc_pid_attr_write+0x1c0/0x320 [ 27.967781] ? __might_fault+0x177/0x1b0 [ 27.971817] security_setprocattr+0x74/0xb0 [ 27.976120] proc_pid_attr_write+0x22b/0x320 [ 27.980503] __vfs_write+0xe4/0x630 [ 27.984101] ? proc_pid_wchan+0xf0/0xf0 [ 27.988054] ? debug_check_no_obj_freed+0x2c0/0x680 [ 27.993042] ? kernel_read+0x110/0x110 [ 27.996907] ? rcu_lockdep_current_cpu_online+0xed/0x140 [ 28.002333] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 28.007339] vfs_write+0x17f/0x4d0 [ 28.010854] SyS_write+0xf2/0x210 [ 28.014288] ? SyS_read+0x210/0x210 [ 28.017902] ? __do_page_fault+0x159/0xad0 [ 28.022111] ? do_syscall_64+0x4c/0x640 [ 28.026057] ? SyS_read+0x210/0x210 [ 28.029658] do_syscall_64+0x1d5/0x640 [ 28.033551] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 28.038730] RIP: 0033:0x7f8c5d7da6a9 [ 28.042425] RSP: 002b:00007fff0ab5dc58 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 28.050107] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f8c5d7da6a9 [ 28.057349] RDX: 0000000000000008 RSI: 0000000020000080 RDI: 0000000000000003 [ 28.064604] RBP: 00007fff0ab5dc60 R08: 0000000000000001 R09: 00007f8c5d790032 [ 28.071860] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 28.079103] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 28.086688] Kernel Offset: disabled [ 28.090332] Rebooting in 86400 seconds..