[ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... Starting Load/Save RF Kill Switch Status... [ 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 '10.128.0.197' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 28.363852] FAULT_INJECTION: forcing a failure. [ 28.363852] name failslab, interval 1, probability 0, space 0, times 1 [ 28.375159] CPU: 0 PID: 7996 Comm: syz-executor289 Not tainted 4.14.268-syzkaller #0 [ 28.383016] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 28.392344] Call Trace: [ 28.394959] dump_stack+0x1b2/0x281 [ 28.398565] should_fail.cold+0x10a/0x149 [ 28.402705] should_failslab+0xd6/0x130 [ 28.406658] kmem_cache_alloc+0x28e/0x3c0 [ 28.410784] prepare_creds+0x39/0x490 [ 28.414559] aa_set_current_onexec+0x1e/0x200 [ 28.419029] aa_change_profile+0x120e/0x2440 [ 28.423415] ? aa_change_hat+0xf60/0xf60 [ 28.427452] ? do_syscall_64+0x1d5/0x640 [ 28.431503] ? entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 28.436840] ? __lock_acquire+0x5fc/0x3f20 [ 28.441053] apparmor_setprocattr+0x972/0xa80 [ 28.445522] ? apparmor_cred_free+0x70/0x70 [ 28.449818] ? aa_file_perm+0x2dd/0xab0 [ 28.453769] ? proc_pid_attr_write+0x1c0/0x320 [ 28.458356] ? __might_fault+0x177/0x1b0 [ 28.462401] security_setprocattr+0x74/0xb0 [ 28.466720] proc_pid_attr_write+0x22b/0x320 [ 28.471118] __vfs_write+0xe4/0x630 [ 28.474725] ? proc_pid_wchan+0xf0/0xf0 [ 28.478692] ? debug_check_no_obj_freed+0x2c0/0x680 [ 28.483685] ? kernel_read+0x110/0x110 [ 28.487553] ? rcu_lockdep_current_cpu_online+0xed/0x140 [ 28.492978] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 28.497980] vfs_write+0x17f/0x4d0 [ 28.501499] SyS_write+0xf2/0x210 [ 28.504932] ? SyS_read+0x210/0x210 [ 28.508534] ? __do_page_fault+0x159/0xad0 [ 28.512742] ? do_syscall_64+0x4c/0x640 [ 28.516702] ? SyS_read+0x210/0x210 [ 28.520321] do_syscall_64+0x1d5/0x640 [ 28.524199] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 28.529369] RIP: 0033:0x7f5fe79056a9 [ 28.533056] RSP: 002b:00007ffe4bbc3678 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 28.540740] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f5fe79056a9 [ 28.547985] RDX: 0000000000000007 RSI: 0000000020000080 RDI: 0000000000000003 [ 28.555228] RBP: 00007ffe4bbc3680 R08: 0000000000000001 R09: 00007f5fe78c0032 [ 28.562472] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 28.569718] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 28.578902] AppArmor WARN aa_audit_file: ((!((&sa)->apparmor_audit_data)->request)): [ 28.579052] ------------[ cut here ]------------ [ 28.591761] WARNING: CPU: 1 PID: 7996 at security/apparmor/file.c:136 aa_audit_file.cold+0x18/0x4f [ 28.600840] Kernel panic - not syncing: panic_on_warn set ... [ 28.600840] [ 28.608181] CPU: 1 PID: 7996 Comm: syz-executor289 Not tainted 4.14.268-syzkaller #0 [ 28.616035] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 28.625359] Call Trace: [ 28.627929] dump_stack+0x1b2/0x281 [ 28.631536] panic+0x1f9/0x42d [ 28.634703] ? add_taint.cold+0x16/0x16 [ 28.638662] ? aa_audit_file.cold+0x18/0x4f [ 28.642957] ? aa_audit_file.cold+0x18/0x4f [ 28.647260] __warn.cold+0x20/0x44 [ 28.650774] ? ist_end_non_atomic+0x10/0x10 [ 28.655068] ? aa_audit_file.cold+0x18/0x4f [ 28.659363] report_bug+0x208/0x250 [ 28.662980] do_error_trap+0x195/0x2d0 [ 28.666842] ? math_error+0x2d0/0x2d0 [ 28.670617] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 28.675433] invalid_op+0x1b/0x40 [ 28.678860] RIP: 0010:aa_audit_file.cold+0x18/0x4f [ 28.683760] RSP: 0018:ffff8880b36af7c8 EFLAGS: 00010282 [ 28.689097] RAX: 0000000000000049 RBX: 1ffff110166d5efc RCX: 0000000000000000 [ 28.696341] RDX: 0000000000000000 RSI: ffff888095da6db0 RDI: ffffed10166d5eef [ 28.703586] RBP: ffff8880b36af9f0 R08: 0000000000000049 R09: 0000000000000000 [ 28.710827] R10: 0000000000000000 R11: 0000000000000000 R12: 00000000fffffff4 [ 28.720122] R13: ffff88823f8b8d80 R14: ffff8880b36af840 R15: 0000000000000000 [ 28.727376] ? aa_audit_file.cold+0x18/0x4f [ 28.731675] ? file_audit_cb+0x670/0x670 [ 28.735710] ? prepare_creds+0x39/0x490 [ 28.739659] ? rcu_lockdep_current_cpu_online+0xed/0x140 [ 28.745081] ? prepare_creds+0x3c9/0x490 [ 28.749116] aa_change_profile+0xcd3/0x2440 [ 28.753416] ? aa_change_hat+0xf60/0xf60 [ 28.757454] ? do_syscall_64+0x1d5/0x640 [ 28.761489] ? entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 28.766824] ? __lock_acquire+0x5fc/0x3f20 [ 28.771038] apparmor_setprocattr+0x972/0xa80 [ 28.775519] ? apparmor_cred_free+0x70/0x70 [ 28.779812] ? aa_file_perm+0x2dd/0xab0 [ 28.783776] ? proc_pid_attr_write+0x1c0/0x320 [ 28.788334] ? __might_fault+0x177/0x1b0 [ 28.792383] security_setprocattr+0x74/0xb0 [ 28.796691] proc_pid_attr_write+0x22b/0x320 [ 28.801073] __vfs_write+0xe4/0x630 [ 28.804677] ? proc_pid_wchan+0xf0/0xf0 [ 28.808626] ? debug_check_no_obj_freed+0x2c0/0x680 [ 28.813627] ? kernel_read+0x110/0x110 [ 28.817491] ? rcu_lockdep_current_cpu_online+0xed/0x140 [ 28.822927] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 28.827921] vfs_write+0x17f/0x4d0 [ 28.831434] SyS_write+0xf2/0x210 [ 28.834861] ? SyS_read+0x210/0x210 [ 28.838464] ? __do_page_fault+0x159/0xad0 [ 28.842669] ? do_syscall_64+0x4c/0x640 [ 28.846614] ? SyS_read+0x210/0x210 [ 28.850214] do_syscall_64+0x1d5/0x640 [ 28.854078] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 28.859243] RIP: 0033:0x7f5fe79056a9 [ 28.862926] RSP: 002b:00007ffe4bbc3678 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 28.870605] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f5fe79056a9 [ 28.877847] RDX: 0000000000000007 RSI: 0000000020000080 RDI: 0000000000000003 [ 28.885087] RBP: 00007ffe4bbc3680 R08: 0000000000000001 R09: 00007f5fe78c0032 [ 28.892337] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 28.899667] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 28.907132] Kernel Offset: disabled [ 28.910794] Rebooting in 86400 seconds..