[....] Starting enhanced syslogd: rsyslogd[ 14.985335] audit: type=1400 audit(1548951242.061:4): avc: denied { syslog } for pid=1924 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 '10.128.0.185' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program syzkaller login: [ 36.789001] input: syz0 as /devices/virtual/input/input4 [ 36.800267] input: syz0 as /devices/virtual/input/input6 [ 36.806594] input: syz0 as /devices/virtual/input/input7 [ 36.817038] input: syz0 as /devices/virtual/input/input8 [ 36.817724] input: syz0 as /devices/virtual/input/input5 [ 36.825550] input: syz0 as /devices/virtual/input/input9 executing program executing program executing program [ 36.919406] input: syz0 as /devices/virtual/input/input10 executing program executing program [ 36.962947] input: syz0 as /devices/virtual/input/input11 [ 36.998386] input: syz0 as /devices/virtual/input/input12 [ 37.001367] input: syz0 as /devices/virtual/input/input13 executing program [ 37.032708] input: syz0 as /devices/virtual/input/input14 executing program [ 37.074467] input: syz0 as /devices/virtual/input/input15 executing program executing program [ 37.147007] input: syz0 as /devices/virtual/input/input16 [ 37.181845] input: syz0 as /devices/virtual/input/input17 executing program executing program [ 37.200251] input: syz0 as /devices/virtual/input/input18 [ 37.233327] input: syz0 as /devices/virtual/input/input19 executing program executing program [ 37.260504] input: syz0 as /devices/virtual/input/input20 [ 37.292680] input: syz0 as /devices/virtual/input/input21 executing program executing program [ 37.329685] input: syz0 as /devices/virtual/input/input22 [ 37.368438] input: syz0 as /devices/virtual/input/input23 [ 37.379354] kasan: CONFIG_KASAN_INLINE enabled [ 37.383759] kasan: GPF could be caused by NULL-ptr deref or user memory accessgeneral protection fault: 0000 [#1] PREEMPT SMP KASAN [ 37.396702] Modules linked in: [ 37.400027] CPU: 1 PID: 2145 Comm: syz-executor227 Not tainted 4.4.172+ #13 [ 37.407112] task: ffff8801d2d817c0 task.stack: ffff8801d4350000 [ 37.413404] RIP: 0010:[] [] __lock_acquire+0x5f3/0x4f50 [ 37.422091] RSP: 0018:ffff8801d43577f0 EFLAGS: 00010002 [ 37.427514] RAX: dffffc0000000000 RBX: ffff8801d2d817c0 RCX: 0000000000000001 [ 37.434774] RDX: 0000000000000015 RSI: 0000000000000000 RDI: 0000000000000001 [ 37.442149] RBP: ffff8801d4357968 R08: 0000000000000001 R09: 0000000000000000 [ 37.449397] R10: ffffffff82836880 R11: ffffffff831a4d78 R12: ffff8801d2d817c0 [ 37.456650] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000000 [ 37.463921] FS: 0000000000000000(0000) GS:ffff8801db700000(0063) knlGS:0000000009e28840 [ 37.472137] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [ 37.477995] CR2: 000000000806b510 CR3: 00000001d49fc000 CR4: 00000000001606b0 [ 37.485242] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 37.492487] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 37.499730] Stack: [ 37.501854] ffff8801d2d817c0 ffff8801d2d82088 0000000000000003 0000000000000000 [ 37.509898] ffff8801d4357998 0000000000000046 ffff880100000001 ffff8801d2d82078 [ 37.517933] 1ffffffff0506d10 ffff8801d4357848 ffffffff8123a551 ffff880100000000 [ 37.525957] Call Trace: [ 37.528522] [] ? debug_lockdep_rcu_enabled+0x71/0xa0 [ 37.535250] [] ? trace_hardirqs_on+0x10/0x10 [ 37.541302] [] ? trace_hardirqs_on+0x10/0x10 [ 37.547352] [] ? avc_has_extended_perms+0x78e/0xd30 [ 37.554005] [] ? avc_has_extended_perms+0xe5/0xd30 [ 37.560575] [] lock_acquire+0x15e/0x450 [ 37.566185] [] ? input_ff_erase+0x7c/0xc0 [ 37.571975] [] ? input_ff_erase+0x7c/0xc0 [ 37.577751] [] mutex_lock_nested+0xc1/0xb80 [ 37.583725] [] ? input_ff_erase+0x7c/0xc0 [ 37.589524] [] ? mutex_lock_interruptible_nested+0x804/0xce0 [ 37.596951] [] ? evdev_ioctl_handler+0xfd/0x19c0 [ 37.603334] [] ? mutex_trylock+0x500/0x500 [ 37.609202] [] ? trace_hardirqs_on_caller+0x385/0x5a0 [ 37.616045] [] ? mutex_lock_killable_nested+0xd00/0xd00 [ 37.623049] [] input_ff_erase+0x7c/0xc0 [ 37.628657] [] evdev_ioctl_handler+0x752/0x19c0 [ 37.634954] [] ? sysenter_flags_fixed+0xd/0x1a [ 37.641165] [] ? evdev_open+0x4f0/0x4f0 [ 37.646777] [] ? selinux_parse_skb.constprop.0+0x16b0/0x16b0 [ 37.654208] [] ? trace_hardirqs_on_caller+0x385/0x5a0 [ 37.661028] [] ? debug_check_no_obj_freed+0x2b9/0x6e0 [ 37.667859] [] ? get_unused_fd_flags+0xd0/0xd0 [ 37.674075] [] ? evdev_ioctl_handler+0x19c0/0x19c0 [ 37.680633] [] evdev_ioctl_compat+0x29/0x30 [ 37.686590] [] compat_SyS_ioctl+0x403/0x2210 [ 37.692640] [] ? compat_SyS_ppoll+0x3d0/0x3d0 [ 37.698763] [] ? putname+0xe0/0x120 [ 37.704024] [] ? do_sys_open+0x237/0x600 [ 37.709721] [] ? filp_open+0x70/0x70 [ 37.715065] [] ? __do_page_fault+0x2b3/0x7f0 [ 37.721113] [] ? do_fast_syscall_32+0xd6/0xa90 [ 37.727322] [] ? compat_SyS_ppoll+0x3d0/0x3d0 [ 37.733482] [] do_fast_syscall_32+0x32d/0xa90 [ 37.739620] [] sysenter_flags_fixed+0xd/0x1a [ 37.745659] 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 [ 37.773294] RIP [] __lock_acquire+0x5f3/0x4f50 [ 37.779637] RSP [ 37.783269] ---[ end trace eaf3cb4e5e0cc45d ]--- [ 37.788017] Kernel panic - not syncing: Fatal exception [ 37.793714] Kernel Offset: disabled [ 37.797343] Rebooting in 86400 seconds..