[ 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 '10.128.0.74' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 27.997936] FAULT_INJECTION: forcing a failure. [ 27.997936] name failslab, interval 1, probability 0, space 0, times 1 [ 28.009406] CPU: 1 PID: 7990 Comm: syz-executor426 Not tainted 4.14.289-syzkaller #0 [ 28.017369] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 28.027228] Call Trace: [ 28.029797] dump_stack+0x1b2/0x281 [ 28.033408] should_fail.cold+0x10a/0x149 [ 28.037534] should_failslab+0xd6/0x130 [ 28.041506] kmem_cache_alloc+0x28e/0x3c0 [ 28.045776] prepare_creds+0x39/0x490 [ 28.049558] aa_set_current_onexec+0x1e/0x200 [ 28.054037] aa_change_profile+0x120e/0x2440 [ 28.058527] ? aa_change_hat+0xf60/0xf60 [ 28.062573] ? do_syscall_64+0x1d5/0x640 [ 28.066632] ? entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 28.071976] ? __lock_acquire+0x5fc/0x3f20 [ 28.076195] apparmor_setprocattr+0x972/0xa80 [ 28.080671] ? apparmor_cred_free+0x70/0x70 [ 28.084976] ? aa_file_perm+0x2dd/0xab0 [ 28.088934] ? proc_pid_attr_write+0x1c0/0x320 [ 28.093502] ? __might_fault+0x177/0x1b0 [ 28.097543] security_setprocattr+0x74/0xb0 [ 28.101845] proc_pid_attr_write+0x22b/0x320 [ 28.106236] __vfs_write+0xe4/0x630 [ 28.109838] ? proc_pid_wchan+0xf0/0xf0 [ 28.113797] ? debug_check_no_obj_freed+0x2c0/0x680 [ 28.118786] ? kernel_read+0x110/0x110 [ 28.122678] ? rcu_lockdep_current_cpu_online+0xed/0x140 [ 28.128138] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 28.133132] vfs_write+0x17f/0x4d0 [ 28.136649] SyS_write+0xf2/0x210 [ 28.140265] ? SyS_read+0x210/0x210 [ 28.143868] ? __do_page_fault+0x159/0xad0 [ 28.148085] ? do_syscall_64+0x4c/0x640 [ 28.152039] ? SyS_read+0x210/0x210 [ 28.155643] do_syscall_64+0x1d5/0x640 [ 28.159509] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 28.164681] RIP: 0033:0x7f949e4186a9 [ 28.168376] RSP: 002b:00007ffd4c927d68 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 28.176059] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f949e4186a9 [ 28.183303] RDX: 0000000000000007 RSI: 0000000020000080 RDI: 0000000000000003 [ 28.190560] RBP: 00007ffd4c927d70 R08: 0000000000000001 R09: 00007f949e3d0032 [ 28.197805] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 28.205050] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 28.212857] AppArmor WARN aa_audit_file: ((!((&sa)->apparmor_audit_data)->request)): [ 28.212991] ------------[ cut here ]------------ [ 28.225705] WARNING: CPU: 1 PID: 7990 at security/apparmor/file.c:136 aa_audit_file.cold+0x18/0x4f [ 28.234813] Kernel panic - not syncing: panic_on_warn set ... [ 28.234813] [ 28.242156] CPU: 1 PID: 7990 Comm: syz-executor426 Not tainted 4.14.289-syzkaller #0 [ 28.250017] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 28.259347] Call Trace: [ 28.261916] dump_stack+0x1b2/0x281 [ 28.265521] panic+0x1f9/0x42d [ 28.268701] ? add_taint.cold+0x16/0x16 [ 28.272653] ? aa_audit_file.cold+0x18/0x4f [ 28.276949] ? aa_audit_file.cold+0x18/0x4f [ 28.281244] __warn.cold+0x20/0x44 [ 28.284775] ? ist_end_non_atomic+0x10/0x10 [ 28.289093] ? aa_audit_file.cold+0x18/0x4f [ 28.293497] report_bug+0x208/0x250 [ 28.297114] do_error_trap+0x195/0x2d0 [ 28.300976] ? math_error+0x2d0/0x2d0 [ 28.304755] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 28.309574] invalid_op+0x1b/0x40 [ 28.313005] RIP: 0010:aa_audit_file.cold+0x18/0x4f [ 28.317906] RSP: 0018:ffff8880b30ff7c8 EFLAGS: 00010282 [ 28.323244] RAX: 0000000000000049 RBX: 1ffff1101661fefc RCX: 0000000000000000 [ 28.330488] RDX: 0000000000000000 RSI: ffff8880b4e189f0 RDI: ffffed101661feef [ 28.337735] RBP: ffff8880b30ff9f0 R08: 0000000000000049 R09: 0000000000000000 [ 28.344980] R10: 0000000000000000 R11: 0000000000000000 R12: 00000000fffffff4 [ 28.352224] R13: ffff88823f8bd680 R14: ffff8880b30ff840 R15: 0000000000000000 [ 28.359495] ? aa_audit_file.cold+0x18/0x4f [ 28.363792] ? file_audit_cb+0x670/0x670 [ 28.367845] ? prepare_creds+0x39/0x490 [ 28.371795] ? rcu_lockdep_current_cpu_online+0xed/0x140 [ 28.377224] ? prepare_creds+0x3c9/0x490 [ 28.381261] aa_change_profile+0xcd3/0x2440 [ 28.385660] ? aa_change_hat+0xf60/0xf60 [ 28.389702] ? do_syscall_64+0x1d5/0x640 [ 28.393739] ? entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 28.399077] ? __lock_acquire+0x5fc/0x3f20 [ 28.403293] apparmor_setprocattr+0x972/0xa80 [ 28.407766] ? apparmor_cred_free+0x70/0x70 [ 28.412061] ? aa_file_perm+0x2dd/0xab0 [ 28.416012] ? proc_pid_attr_write+0x1c0/0x320 [ 28.420573] ? __might_fault+0x177/0x1b0 [ 28.424610] security_setprocattr+0x74/0xb0 [ 28.428910] proc_pid_attr_write+0x22b/0x320 [ 28.433297] __vfs_write+0xe4/0x630 [ 28.436898] ? proc_pid_wchan+0xf0/0xf0 [ 28.440848] ? debug_check_no_obj_freed+0x2c0/0x680 [ 28.445843] ? kernel_read+0x110/0x110 [ 28.449710] ? rcu_lockdep_current_cpu_online+0xed/0x140 [ 28.455135] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 28.460125] vfs_write+0x17f/0x4d0 [ 28.463647] SyS_write+0xf2/0x210 [ 28.467074] ? SyS_read+0x210/0x210 [ 28.470674] ? __do_page_fault+0x159/0xad0 [ 28.474900] ? do_syscall_64+0x4c/0x640 [ 28.478850] ? SyS_read+0x210/0x210 [ 28.482453] do_syscall_64+0x1d5/0x640 [ 28.486318] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 28.491490] RIP: 0033:0x7f949e4186a9 [ 28.495175] RSP: 002b:00007ffd4c927d68 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 28.502855] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f949e4186a9 [ 28.510108] RDX: 0000000000000007 RSI: 0000000020000080 RDI: 0000000000000003 [ 28.517371] RBP: 00007ffd4c927d70 R08: 0000000000000001 R09: 00007f949e3d0032 [ 28.524634] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 28.531886] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 28.539445] Kernel Offset: disabled [ 28.543091] Rebooting in 86400 seconds..