[[0;32m OK [0m] Started Daily Cleanup of Temporary Directories.
[[0;32m OK [0m] Reached target Timers.
[[0;32m OK [0m] Started Regular background program processing daemon.
Starting System Logging Service...
Starting Permit User Sessions...
Starting OpenBSD Secure Shell server...
[[0;32m OK [0m] Started System Logging Service.
[[0;32m OK [0m] Started Permit User Sessions.
[[0;32m OK [0m] Started OpenBSD Secure Shell server.
[[0;32m OK [0m] Started getty on tty2-tty6 if dbus and logind are not available.
[[0;32m OK [0m] Listening on Load/Save RF Kill Switch Status /dev/rfkill Watch.
[[0;32m OK [0m] Started Getty on tty6.
[[0;32m OK [0m] Started Getty on tty5.
[[0;32m OK [0m] Started Getty on tty4.
[[0;32m OK [0m] Started Getty on tty3.
[[0;32m OK [0m] Started Getty on tty1.
[[0;32m OK [0m] Started Serial Getty on ttyS0.
[[0;32m OK [0m] Started Getty on tty2.
[[0;32m OK [0m] Reached target Login Prompts.
[[0;32m OK [0m] Reached target Multi-User System.
[[0;32m OK [0m] Reached target Graphical Interface.
Starting Update UTMP about System Runlevel Changes...
Starting Load/Save RF Kill Switch Status...
[[0;32m OK [0m] Started Update UTMP about System Runlevel Changes.
[[0;32m OK [0m] Started Load/Save RF Kill Switch Status.
Debian GNU/Linux 9 syzkaller ttyS0
Warning: Permanently added '10.128.0.89' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [ 63.630169][ T28] audit: type=1400 audit(1594954605.637:8): avc: denied { execmem } for pid=6816 comm="syz-executor989" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1
[ 63.635259][ T6816] ------------[ cut here ]------------
[ 63.658143][ T6816] WARNING: CPU: 1 PID: 6816 at sound/core/info.c:609 snd_info_get_line+0x26a/0x320
[ 63.667810][ T6816] Kernel panic - not syncing: panic_on_warn set ...
[ 63.674399][ T6816] CPU: 1 PID: 6816 Comm: syz-executor989 Not tainted 5.8.0-rc5-syzkaller #0
[ 63.683043][ T6816] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 63.693134][ T6816] Call Trace:
[ 63.696403][ T6816] dump_stack+0x18f/0x20d
[ 63.700713][ T6816] panic+0x2e3/0x75c
[ 63.704587][ T6816] ? __warn_printk+0xf3/0xf3
[ 63.709205][ T6816] ? printk+0xba/0xed
[ 63.713192][ T6816] ? log_store.cold+0x16/0x16
[ 63.717843][ T6816] ? __warn.cold+0x5/0x45
[ 63.722147][ T6816] ? __warn+0xd6/0x1f2
[ 63.726207][ T6816] ? snd_info_get_line+0x26a/0x320
[ 63.731293][ T6816] __warn.cold+0x20/0x45
[ 63.735528][ T6816] ? snd_info_get_line+0x26a/0x320
[ 63.740615][ T6816] report_bug+0x1bd/0x210
[ 63.744928][ T6816] handle_bug+0x38/0x90
[ 63.749061][ T6816] exc_invalid_op+0x13/0x40
[ 63.753543][ T6816] asm_exc_invalid_op+0x12/0x20
[ 63.758372][ T6816] RIP: 0010:snd_info_get_line+0x26a/0x320
[ 63.764077][ T6816] Code: 85 b3 00 00 00 48 8b 44 24 10 c6 00 00 e8 ce 48 6c fb 8b 44 24 0c 48 83 c4 28 5b 5d 41 5c 41 5d 41 5e 41 5f c3 e8 b6 48 6c fb <0f> 0b c7 44 24 0c 01 00 00 00 eb d7 e8 a5 48 6c fb 48 8b 74 24 10
[ 63.783663][ T6816] RSP: 0018:ffffc900010779a8 EFLAGS: 00010293
[ 63.789794][ T6816] RAX: 0000000000000000 RBX: ffff88809242f800 RCX: 0000000000000000
[ 63.797742][ T6816] RDX: ffff8880937aa140 RSI: ffffffff8607714a RDI: ffff88809242f800
[ 63.805691][ T6816] RBP: 0000000000000080 R08: 0000000000000000 R09: ffff88809a18f2db
[ 63.813638][ T6816] R10: ffffed1013431e5b R11: 0000000000000000 R12: ffff8880a83625c0
[ 63.821586][ T6816] R13: dffffc0000000000 R14: ffff8880a77d6d48 R15: ffff88809242f800
[ 63.829585][ T6816] ? snd_info_get_line+0x26a/0x320
[ 63.834950][ T6816] ? snd_info_get_line+0x26a/0x320
[ 63.840052][ T6816] ? __lock_acquire+0x16e3/0x56e0
[ 63.845070][ T6816] snd_mixer_oss_proc_write+0xe2/0x530
[ 63.850505][ T6816] ? snd_mixer_oss_notify_handler+0x8d0/0x8d0
[ 63.856557][ T6816] ? lockdep_hardirqs_on_prepare+0x590/0x590
[ 63.862511][ T6816] ? mark_lock+0xbc/0x1710
[ 63.866911][ T6816] ? stack_trace_save+0x8c/0xc0
[ 63.871748][ T6816] ? find_held_lock+0x2d/0x110
[ 63.876489][ T6816] ? close_pdeo.part.0+0x4a/0x2e0
[ 63.881488][ T6816] ? lock_downgrade+0x820/0x820
[ 63.886332][ T6816] ? lock_release+0x8d0/0x8d0
[ 63.891051][ T6816] snd_info_text_entry_release+0xfa/0x260
[ 63.896768][ T6816] ? snd_mixer_oss_notify_handler+0x8d0/0x8d0
[ 63.902876][ T6816] ? snd_info_register+0x3e0/0x3e0
[ 63.907966][ T6816] close_pdeo.part.0+0xdc/0x2e0
[ 63.912825][ T6816] proc_reg_release+0x2e9/0x360
[ 63.917670][ T6816] ? close_pdeo+0x170/0x170
[ 63.922156][ T6816] ? locks_remove_file+0x319/0x580
[ 63.927248][ T6816] ? fsnotify_first_mark+0x1f0/0x1f0
[ 63.932506][ T6816] ? fcntl_setlk+0xf60/0xf60
[ 63.937075][ T6816] ? lock_is_held_type+0xb0/0xe0
[ 63.942076][ T6816] ? integrity_iint_find+0x123/0x150
[ 63.947424][ T6816] ? ima_file_free+0xdd/0x420
[ 63.952079][ T6816] ? close_pdeo+0x170/0x170
[ 63.956556][ T6816] __fput+0x33c/0x880
[ 63.960515][ T6816] task_work_run+0xdd/0x190
[ 63.965030][ T6816] do_exit+0xb72/0x2a40
[ 63.969173][ T6816] ? mm_update_next_owner+0x7a0/0x7a0
[ 63.974543][ T6816] ? __sb_end_write+0xf8/0x1d0
[ 63.979362][ T6816] ? vfs_write+0x1b0/0x6b0
[ 63.983790][ T6816] ? ksys_write+0x1a5/0x250
[ 63.988286][ T6816] do_group_exit+0x125/0x310
[ 63.992858][ T6816] __x64_sys_exit_group+0x3a/0x50
[ 63.998209][ T6816] do_syscall_64+0x60/0xe0
[ 64.002601][ T6816] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 64.008467][ T6816] RIP: 0033:0x43eeb8
[ 64.012328][ T6816] Code: Bad RIP value.
[ 64.016365][ T6816] RSP: 002b:00007ffc660b73c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[ 64.024747][ T6816] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000043eeb8
[ 64.032694][ T6816] RDX: 0000000000000000 RSI: 000000000000003c RDI: 0000000000000000
[ 64.040650][ T6816] RBP: 00000000004be6c8 R08: 00000000000000e7 R09: ffffffffffffffd0
[ 64.048596][ T6816] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[ 64.056627][ T6816] R13: 00000000006d0180 R14: 0000000000000000 R15: 0000000000000000
[ 64.065374][ T6816] Kernel Offset: disabled
[ 64.069752][ T6816] Rebooting in 86400 seconds..