[ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Update UTMP about System Runlevel Changes. Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.5' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 30.088978] FAULT_INJECTION: forcing a failure. [ 30.088978] name failslab, interval 1, probability 0, space 0, times 1 [ 30.100310] CPU: 0 PID: 7977 Comm: syz-executor150 Not tainted 4.14.290-syzkaller #0 [ 30.108191] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 30.117539] Call Trace: [ 30.120109] dump_stack+0x1b2/0x281 [ 30.123716] should_fail.cold+0x10a/0x149 [ 30.127852] should_failslab+0xd6/0x130 [ 30.131805] kmem_cache_alloc+0x28e/0x3c0 [ 30.135930] prepare_creds+0x39/0x490 [ 30.139720] aa_set_current_onexec+0x1e/0x200 [ 30.144193] aa_change_profile+0x120e/0x2440 [ 30.148579] ? aa_change_hat+0xf60/0xf60 [ 30.152626] ? do_syscall_64+0x1d5/0x640 [ 30.156665] ? entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 30.162006] ? __lock_acquire+0x5fc/0x3f20 [ 30.166222] apparmor_setprocattr+0x972/0xa80 [ 30.170711] ? apparmor_cred_free+0x70/0x70 [ 30.175007] ? aa_file_perm+0x2dd/0xab0 [ 30.178970] ? proc_pid_attr_write+0x1c0/0x320 [ 30.183533] ? __might_fault+0x177/0x1b0 [ 30.187569] security_setprocattr+0x74/0xb0 [ 30.191880] proc_pid_attr_write+0x22b/0x320 [ 30.196389] __vfs_write+0xe4/0x630 [ 30.199993] ? proc_pid_wchan+0xf0/0xf0 [ 30.203944] ? debug_check_no_obj_freed+0x2c0/0x680 [ 30.208946] ? kernel_read+0x110/0x110 [ 30.212820] ? rcu_lockdep_current_cpu_online+0xed/0x140 [ 30.218249] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 30.223245] vfs_write+0x17f/0x4d0 [ 30.226765] SyS_write+0xf2/0x210 [ 30.230198] ? SyS_read+0x210/0x210 [ 30.233805] ? __do_page_fault+0x159/0xad0 [ 30.238020] ? do_syscall_64+0x4c/0x640 [ 30.241993] ? SyS_read+0x210/0x210 [ 30.245600] do_syscall_64+0x1d5/0x640 [ 30.249465] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 30.254649] RIP: 0033:0x7f98131e46a9 [ 30.258341] RSP: 002b:00007ffc0815fd28 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 30.266026] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f98131e46a9 [ 30.273273] RDX: 000000000000000b RSI: 0000000020000000 RDI: 0000000000000003 [ 30.280520] RBP: 00007ffc0815fd30 R08: 0000000000000001 R09: 00007f98131a0032 [ 30.287782] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 30.295028] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 30.310396] AppArmor WARN aa_audit_file: ((!((&sa)->apparmor_audit_data)->request)): [ 30.310545] ------------[ cut here ]------------ [ 30.323264] WARNING: CPU: 1 PID: 7977 at security/apparmor/file.c:136 aa_audit_file.cold+0x18/0x4f [ 30.332343] Kernel panic - not syncing: panic_on_warn set ... [ 30.332343] [ 30.339680] CPU: 1 PID: 7977 Comm: syz-executor150 Not tainted 4.14.290-syzkaller #0 [ 30.347534] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 30.356860] Call Trace: [ 30.359428] dump_stack+0x1b2/0x281 [ 30.363030] panic+0x1f9/0x42d [ 30.366220] ? add_taint.cold+0x16/0x16 [ 30.370170] ? aa_audit_file.cold+0x18/0x4f [ 30.374471] ? aa_audit_file.cold+0x18/0x4f [ 30.378766] __warn.cold+0x20/0x44 [ 30.382283] ? ist_end_non_atomic+0x10/0x10 [ 30.386583] ? aa_audit_file.cold+0x18/0x4f [ 30.390882] report_bug+0x208/0x250 [ 30.394490] do_error_trap+0x195/0x2d0 [ 30.398356] ? math_error+0x2d0/0x2d0 [ 30.402148] ? mark_held_locks+0xa6/0xf0 [ 30.406187] ? vprintk_emit+0x4e1/0x620 [ 30.410135] ? trace_hardirqs_on_caller+0x3a8/0x580 [ 30.415125] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 30.419945] invalid_op+0x1b/0x40 [ 30.423392] RIP: 0010:aa_audit_file.cold+0x18/0x4f [ 30.428292] RSP: 0018:ffff8880a247f7c8 EFLAGS: 00010282 [ 30.433630] RAX: 0000000000000049 RBX: 1ffff1101448fefc RCX: 0000000000000000 [ 30.440905] RDX: 0000000000000000 RSI: ffff8880ac072cf0 RDI: ffffed101448feef [ 30.448149] RBP: ffff8880a247f9f0 R08: 0000000000000049 R09: 0000000000000000 [ 30.455392] R10: 0000000000000000 R11: 0000000000000000 R12: 00000000fffffff4 [ 30.462724] R13: ffff88823f8bd680 R14: ffff8880a247f840 R15: 0000000000000000 [ 30.469981] ? aa_audit_file.cold+0x18/0x4f [ 30.474303] ? file_audit_cb+0x670/0x670 [ 30.478342] ? prepare_creds+0x39/0x490 [ 30.482294] ? rcu_lockdep_current_cpu_online+0xed/0x140 [ 30.487728] ? prepare_creds+0x3c9/0x490 [ 30.491763] aa_change_profile+0xcd3/0x2440 [ 30.496069] ? aa_change_hat+0xf60/0xf60 [ 30.500117] ? do_syscall_64+0x1d5/0x640 [ 30.504155] ? entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 30.509511] ? __lock_acquire+0x5fc/0x3f20 [ 30.513727] apparmor_setprocattr+0x972/0xa80 [ 30.518400] ? apparmor_cred_free+0x70/0x70 [ 30.522710] ? aa_file_perm+0x2dd/0xab0 [ 30.526669] ? proc_pid_attr_write+0x1c0/0x320 [ 30.531233] ? __might_fault+0x177/0x1b0 [ 30.535272] security_setprocattr+0x74/0xb0 [ 30.539571] proc_pid_attr_write+0x22b/0x320 [ 30.543960] __vfs_write+0xe4/0x630 [ 30.547562] ? proc_pid_wchan+0xf0/0xf0 [ 30.551509] ? debug_check_no_obj_freed+0x2c0/0x680 [ 30.556505] ? kernel_read+0x110/0x110 [ 30.560375] ? rcu_lockdep_current_cpu_online+0xed/0x140 [ 30.565802] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 30.570793] vfs_write+0x17f/0x4d0 [ 30.574310] SyS_write+0xf2/0x210 [ 30.577760] ? SyS_read+0x210/0x210 [ 30.581364] ? __do_page_fault+0x159/0xad0 [ 30.585662] ? do_syscall_64+0x4c/0x640 [ 30.589611] ? SyS_read+0x210/0x210 [ 30.593214] do_syscall_64+0x1d5/0x640 [ 30.597080] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 30.602249] RIP: 0033:0x7f98131e46a9 [ 30.605935] RSP: 002b:00007ffc0815fd28 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 30.613619] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f98131e46a9 [ 30.620864] RDX: 000000000000000b RSI: 0000000020000000 RDI: 0000000000000003 [ 30.628109] RBP: 00007ffc0815fd30 R08: 0000000000000001 R09: 00007f98131a0032 [ 30.635352] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 30.642614] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 30.650211] Kernel Offset: disabled [ 30.653871] Rebooting in 86400 seconds..