Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.29' (ECDSA) to the list of known hosts. syzkaller login: [ 29.867823] FAULT_INJECTION: forcing a failure. [ 29.867823] name failslab, interval 1, probability 0, space 0, times 1 [ 29.879171] CPU: 0 PID: 7969 Comm: syz-executor727 Not tainted 4.14.212-syzkaller #0 [ 29.887066] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.896420] Call Trace: [ 29.898998] dump_stack+0x1b2/0x283 [ 29.902628] should_fail.cold+0x10a/0x154 [ 29.906778] should_failslab+0xd6/0x130 [ 29.910755] kmem_cache_alloc+0x28e/0x3c0 [ 29.914901] get_empty_filp+0x86/0x3e0 [ 29.918796] path_openat+0x84/0x2970 [ 29.922513] ? path_lookupat+0x780/0x780 [ 29.927078] ? trace_hardirqs_on+0x10/0x10 [ 29.931303] ? trace_hardirqs_on+0x10/0x10 [ 29.935534] do_filp_open+0x179/0x3c0 [ 29.939327] ? may_open_dev+0xe0/0xe0 [ 29.943112] ? __alloc_fd+0x1be/0x490 [ 29.946895] ? lock_downgrade+0x740/0x740 [ 29.951054] ? do_raw_spin_unlock+0x164/0x220 [ 29.955545] ? _raw_spin_unlock+0x29/0x40 [ 29.959675] ? __alloc_fd+0x1be/0x490 [ 29.963460] ? _raw_spin_unlock_irq+0x24/0x80 [ 29.967938] do_sys_open+0x296/0x410 [ 29.971627] ? filp_open+0x60/0x60 [ 29.975147] ? do_syscall_64+0x4c/0x640 [ 29.979110] ? do_sys_open+0x410/0x410 [ 29.982992] do_syscall_64+0x1d5/0x640 [ 29.986885] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 29.992072] RIP: 0033:0x400ee0 [ 29.995250] RSP: 002b:00007ffd2352d348 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 [ 30.002941] RAX: ffffffffffffffda RBX: 00007ffd2352d371 RCX: 0000000000400ee0 [ 30.010206] RDX: 00007ffd2352d376 RSI: 0000000000080001 RDI: 00000000004a1ac8 executing program [ 30.017461] RBP: 00007ffd2352d370 R08: 0000000000000000 R09: 0000000000000001 [ 30.024715] R10: 0000000000000032 R11: 0000000000000246 R12: 00000000004a1ac8 [ 30.031972] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 30.044353] FAULT_INJECTION: forcing a failure. [ 30.044353] name failslab, interval 1, probability 0, space 0, times 0 [ 30.055839] CPU: 1 PID: 7969 Comm: syz-executor727 Not tainted 4.14.212-syzkaller #0 [ 30.063751] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.073088] Call Trace: [ 30.075674] dump_stack+0x1b2/0x283 [ 30.079288] should_fail.cold+0x10a/0x154 [ 30.083436] should_failslab+0xd6/0x130 [ 30.087409] kmem_cache_alloc+0x28e/0x3c0 [ 30.091556] prepare_creds+0x39/0x490 [ 30.095341] aa_set_current_onexec+0x1e/0x200 [ 30.099821] aa_change_profile+0x1201/0x2420 [ 30.104226] ? aa_change_hat+0xf40/0xf40 [ 30.108723] ? do_syscall_64+0x1d5/0x640 [ 30.112778] ? entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 30.118212] ? __lock_acquire+0x5fc/0x3f20 [ 30.122444] apparmor_setprocattr+0x972/0xa80 [ 30.126931] ? apparmor_cred_free+0x70/0x70 [ 30.131234] ? proc_pid_attr_write+0x152/0x280 [ 30.135797] ? __might_fault+0x177/0x1b0 [ 30.139860] security_setprocattr+0x74/0xb0 [ 30.144266] proc_pid_attr_write+0x1bd/0x280 [ 30.148660] __vfs_write+0xe4/0x630 [ 30.152267] ? proc_pid_wchan+0xf0/0xf0 [ 30.156221] ? debug_check_no_obj_freed+0x2c0/0x674 [ 30.161218] ? kernel_read+0x110/0x110 [ 30.165112] ? rcu_lockdep_current_cpu_online+0xed/0x140 [ 30.170552] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 30.175563] vfs_write+0x17f/0x4d0 [ 30.179096] SyS_write+0xf2/0x210 [ 30.182551] ? SyS_read+0x210/0x210 [ 30.186160] ? __do_page_fault+0x159/0xad0 [ 30.190381] ? do_syscall_64+0x4c/0x640 [ 30.194334] ? SyS_read+0x210/0x210 [ 30.197959] do_syscall_64+0x1d5/0x640 [ 30.201858] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 30.207028] RIP: 0033:0x4405f9 [ 30.210202] RSP: 002b:00007ffd2352d858 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 30.217904] RAX: ffffffffffffffda RBX: 00000000004a1c18 RCX: 00000000004405f9 [ 30.225159] RDX: 000000000000000a RSI: 0000000020001800 RDI: 0000000000000004 [ 30.232411] RBP: 00000000006cb018 R08: 0000000000000001 R09: 00000000004002c8 [ 30.239747] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000401e60 [ 30.247012] R13: 0000000000401ef0 R14: 0000000000000000 R15: 0000000000000000 [ 30.255966] AppArmor WARN aa_audit_file: ((!((&sa)->apparmor_audit_data)->request)): [ 30.256125] ------------[ cut here ]------------ [ 30.268862] WARNING: CPU: 1 PID: 7969 at security/apparmor/file.c:136 aa_audit_file.cold+0x18/0x4f [ 30.277964] Kernel panic - not syncing: panic_on_warn set ... [ 30.277964] [ 30.285309] CPU: 1 PID: 7969 Comm: syz-executor727 Not tainted 4.14.212-syzkaller #0 [ 30.293212] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.302566] Call Trace: [ 30.305156] dump_stack+0x1b2/0x283 [ 30.308777] panic+0x1f9/0x42d [ 30.311950] ? add_taint.cold+0x16/0x16 [ 30.316011] ? aa_audit_file.cold+0x18/0x4f [ 30.320315] ? aa_audit_file.cold+0x18/0x4f [ 30.324629] __warn.cold+0x20/0x4b [ 30.328152] ? ist_end_non_atomic+0x10/0x10 [ 30.332470] ? aa_audit_file.cold+0x18/0x4f [ 30.336804] report_bug+0x208/0x249 [ 30.340425] do_error_trap+0x195/0x2d0 [ 30.344301] ? math_error+0x2d0/0x2d0 [ 30.348096] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 30.352934] invalid_op+0x1b/0x40 [ 30.356373] RIP: 0010:aa_audit_file.cold+0x18/0x4f [ 30.361292] RSP: 0018:ffff888095a777d0 EFLAGS: 00010282 [ 30.366788] RAX: 0000000000000049 RBX: 1ffff11012b4eefd RCX: 0000000000000000 [ 30.374053] RDX: 0000000000000000 RSI: ffff888095adceb0 RDI: ffffed1012b4eef0 [ 30.381321] RBP: ffff888095a779f8 R08: 0000000000000049 R09: 0000000000000000 [ 30.388595] R10: 0000000000000000 R11: 0000000000000000 R12: 00000000fffffff4 [ 30.395846] R13: ffff88823f8b8d80 R14: ffff888095a77848 R15: 0000000000000000 [ 30.403128] ? file_audit_cb+0x640/0x640 [ 30.407187] ? prepare_creds+0x39/0x490 [ 30.411217] ? rcu_lockdep_current_cpu_online+0xed/0x140 [ 30.416674] ? prepare_creds+0x3c9/0x490 [ 30.420725] aa_change_profile+0xcc9/0x2420 [ 30.425135] ? aa_change_hat+0xf40/0xf40 [ 30.429188] ? do_syscall_64+0x1d5/0x640 [ 30.433244] ? entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 30.438592] ? __lock_acquire+0x5fc/0x3f20 [ 30.442830] apparmor_setprocattr+0x972/0xa80 [ 30.447330] ? apparmor_cred_free+0x70/0x70 [ 30.451654] ? proc_pid_attr_write+0x152/0x280 [ 30.456242] ? __might_fault+0x177/0x1b0 [ 30.460286] security_setprocattr+0x74/0xb0 [ 30.464594] proc_pid_attr_write+0x1bd/0x280 [ 30.469070] __vfs_write+0xe4/0x630 [ 30.472691] ? proc_pid_wchan+0xf0/0xf0 [ 30.476666] ? debug_check_no_obj_freed+0x2c0/0x674 [ 30.481681] ? kernel_read+0x110/0x110 [ 30.485564] ? rcu_lockdep_current_cpu_online+0xed/0x140 [ 30.491018] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 30.496340] vfs_write+0x17f/0x4d0 [ 30.499882] SyS_write+0xf2/0x210 [ 30.503326] ? SyS_read+0x210/0x210 [ 30.506975] ? __do_page_fault+0x159/0xad0 [ 30.511215] ? do_syscall_64+0x4c/0x640 [ 30.515195] ? SyS_read+0x210/0x210 [ 30.519011] do_syscall_64+0x1d5/0x640 [ 30.522908] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 30.528104] RIP: 0033:0x4405f9 [ 30.531289] RSP: 002b:00007ffd2352d858 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 30.538987] RAX: ffffffffffffffda RBX: 00000000004a1c18 RCX: 00000000004405f9 [ 30.546292] RDX: 000000000000000a RSI: 0000000020001800 RDI: 0000000000000004 [ 30.553547] RBP: 00000000006cb018 R08: 0000000000000001 R09: 00000000004002c8 [ 30.560798] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000401e60 [ 30.568114] R13: 0000000000401ef0 R14: 0000000000000000 R15: 0000000000000000 [ 30.576531] Kernel Offset: disabled [ 30.580229] Rebooting in 86400 seconds..