[....] Starting enhanced syslogd: rsyslogd[ 14.334959] audit: type=1400 audit(1548749288.406:4): avc: denied { syslog } for pid=1908 comm="rsyslogd" capability=34 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=capability2 permissive=1 [?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. Starting mcstransd: [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.218' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program syzkaller login: [ 32.982695] input: syz0 as /devices/virtual/input/input4 [ 32.990800] input: syz0 as /devices/virtual/input/input5 [ 33.003570] kasan: CONFIG_KASAN_INLINE enabled[ 33.004665] input: syz0 as /devices/virtual/input/input7 [ 33.013423] kasan: GPF could be caused by NULL-ptr deref or user memory accessgeneral protection fault: 0000 [#1] PREEMPT SMP KASAN [ 33.026396] Modules linked in: executing program [ 33.029759] CPU: 0 PID: 2070 Comm: syz-executor848 Not tainted 4.4.172+ #13 [ 33.036869] task: ffff8801d5ff8000 task.stack: ffff8800b75d8000 [ 33.041395] input: syz0 as /devices/virtual/input/input6 [ 33.048453] RIP: 0010:[] [] __lock_acquire+0x5f3/0x4f50 [ 33.057551] RSP: 0018:ffff8800b75df8d0 EFLAGS: 00010002 [ 33.063115] RAX: dffffc0000000000 RBX: ffff8801d5ff8000 RCX: 0000000000000001 [ 33.071019] RDX: 0000000000000015 RSI: 0000000000000000 RDI: 0000000000000001 [ 33.078270] RBP: ffff8800b75dfa48 R08: 0000000000000001 R09: 0000000000000000 [ 33.085787] R10: ffffffff82836880 R11: ffffffff831a4d78 R12: ffff8801d5ff8000 [ 33.093824] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000000 [ 33.101736] FS: 0000000001fc7880(0063) GS:ffff8801db600000(0000) knlGS:0000000000000000 [ 33.110110] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 33.116234] CR2: 00000000006d0090 CR3: 00000000ba3e2000 CR4: 00000000001606b0 [ 33.124178] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 33.131564] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 33.138953] Stack: [ 33.141074] ffff8801d5ff8000 ffff8801d5ff88c8 0000000000000003 0000000000000000 [ 33.149509] ffff8800b75dfa78 0000000000000046 0000000000000000 0000000000000000 [ 33.157839] ffff8800b75dfa98 ffffffff811ffdef ffff8800b75dfb30 ffffffff00000000 [ 33.166159] Call Trace: [ 33.168869] [] ? __lock_acquire+0xa4f/0x4f50 [ 33.175057] [] ? trace_hardirqs_on+0x10/0x10 [ 33.181639] [] ? trace_hardirqs_on+0x10/0x10 [ 33.187673] [] ? trace_hardirqs_on+0x10/0x10 [ 33.194531] [] ? __alloc_pages_direct_compact+0x220/0x220 [ 33.202001] [] lock_acquire+0x15e/0x450 [ 33.207748] [] ? input_ff_erase+0x7c/0xc0 [ 33.213694] [] ? input_ff_erase+0x7c/0xc0 [ 33.219634] [] mutex_lock_nested+0xc1/0xb80 [ 33.225883] [] ? input_ff_erase+0x7c/0xc0 [ 33.231787] [] ? mutex_lock_interruptible_nested+0x804/0xce0 [ 33.239472] [] ? avc_has_extended_perms+0x78e/0xd30 [ 33.246245] [] ? avc_has_extended_perms+0xe5/0xd30 [ 33.253384] [] ? wp_page_copy.isra.0+0x79b/0xc70 [ 33.260335] [] ? evdev_ioctl_handler+0xfd/0x19c0 [ 33.267107] [] ? mutex_trylock+0x500/0x500 [ 33.272965] [] ? mutex_lock_killable_nested+0xd00/0xd00 [ 33.280101] [] ? avc_ss_reset+0x110/0x110 [ 33.286009] [] input_ff_erase+0x7c/0xc0 [ 33.291923] [] evdev_ioctl_handler+0x752/0x19c0 [ 33.298409] [] ? evdev_open+0x4f0/0x4f0 [ 33.304005] [] ? handle_mm_fault+0x904/0x3140 [ 33.310391] [] ? debug_check_no_obj_freed+0x2b9/0x6e0 [ 33.317211] [] ? handle_mm_fault+0x98d/0x3140 [ 33.323471] [] ? evdev_ioctl_compat+0x30/0x30 [ 33.329753] [] evdev_ioctl+0x28/0x30 [ 33.335461] [] do_vfs_ioctl+0x6e7/0xfa0 [ 33.341065] [] ? selinux_parse_skb.constprop.0+0x16b0/0x16b0 [ 33.348627] [] ? ioctl_preallocate+0x200/0x200 [ 33.354970] [] ? __do_page_fault+0x2b3/0x7f0 [ 33.361413] [] ? security_file_ioctl+0x8f/0xc0 [ 33.367649] [] SyS_ioctl+0x8f/0xc0 [ 33.373182] [] entry_SYSCALL_64_fastpath+0x1e/0x9a [ 33.379888] Code: 0f 85 7f 32 00 00 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 48 8b 94 24 88 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <80> 3c 02 00 0f 85 a7 33 00 00 48 8b 84 24 88 00 00 00 48 81 38 [ 33.408057] RIP [] __lock_acquire+0x5f3/0x4f50 [ 33.414385] RSP [ 33.418144] ---[ end trace d5d3d8ec0a45731f ]--- [ 33.422924] Kernel panic - not syncing: Fatal exception [ 33.428792] Kernel Offset: disabled [ 33.432406] Rebooting in 86400 seconds..