[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c.
[   38.112605][   T26] audit: type=1800 audit(1556030481.656:25): pid=7717 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0
[   38.143298][   T26] audit: type=1800 audit(1556030481.656:26): pid=7717 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0
[   38.185309][   T26] audit: type=1800 audit(1556030481.656:27): pid=7717 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0
[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c.
[....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c.

Debian GNU/Linux 7 syzkaller ttyS0

Warning: Permanently added '10.128.1.31' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   50.095938][ T7872] L1TF CPU bug present and SMT on, data leak possible. See CVE-2018-3646 and https://www.kernel.org/doc/html/latest/admin-guide/l1tf.html for details.
[   50.122710][ T7872] kasan: CONFIG_KASAN_INLINE enabled
[   50.128126][ T7872] kasan: GPF could be caused by NULL-ptr deref or user memory access
[   50.136201][ T7872] general protection fault: 0000 [#1] PREEMPT SMP KASAN
[   50.143127][ T7872] CPU: 0 PID: 7872 Comm: syz-executor233 Not tainted 5.1.0-rc6-next-20190423 #29
[   50.152209][ T7872] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   50.162260][ T7872] RIP: 0010:vcpu_enter_guest+0xbcd/0x5fb0
[   50.167983][ T7872] Code: 48 c1 ea 03 80 3c 02 00 0f 85 6f 48 00 00 49 8b 9f b0 03 00 00 48 b8 00 00 00 00 00 fc ff df 48 8d 7b 78 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e 39 48 00 00 8b 5b 78 31 ff 89
[   50.187596][ T7872] RSP: 0018:ffff88808bd4fa00 EFLAGS: 00010006
[   50.193668][ T7872] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff810d1ec9
[   50.201626][ T7872] RDX: 000000000000000f RSI: ffffffff810ceef2 RDI: 0000000000000078
[   50.209600][ T7872] RBP: ffff88808bd4fb10 R08: ffff8880a912e580 R09: ffffed1015d05dd0
[   50.217563][ T7872] R10: ffffed1015d05dcf R11: ffff8880ae82ee7b R12: ffff88808f3e006c
[   50.225539][ T7872] R13: 0000000000000001 R14: ffff88808f3e0070 R15: ffff88808f3e0040
[   50.233513][ T7872] FS:  00007f7adb927700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000
[   50.242447][ T7872] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   50.249017][ T7872] CR2: 00007fa0427eb000 CR3: 00000000939e4000 CR4: 00000000001426f0
[   50.256971][ T7872] Call Trace:
[   50.260259][ T7872]  ? emulator_read_emulated+0x50/0x50
[   50.265630][ T7872]  ? lock_acquire+0x16f/0x3f0
[   50.270299][ T7872]  ? kvm_arch_vcpu_ioctl_run+0x240/0x1750
[   50.276010][ T7872]  kvm_arch_vcpu_ioctl_run+0x425/0x1750
[   50.278908][ T7874] kobject: 'kvm' (0000000026f06c37): kobject_uevent_env
[   50.281550][ T7872]  ? kvm_arch_vcpu_ioctl_run+0x425/0x1750
[   50.281567][ T7872]  kvm_vcpu_ioctl+0x4dc/0xf90
[   50.281587][ T7872]  ? kvm_set_memory_region+0x50/0x50
[   50.288558][ T7874] kobject: 'kvm' (0000000026f06c37): fill_kobj_path: path = '/devices/virtual/misc/kvm'
[   50.294266][ T7872]  ? tomoyo_path_number_perm+0x263/0x520
[   50.294281][ T7872]  ? tomoyo_execute_permission+0x4a0/0x4a0
[   50.294299][ T7872]  ? __fget+0x35a/0x550
[   50.294314][ T7872]  ? kvm_set_memory_region+0x50/0x50
[   50.294336][ T7872]  do_vfs_ioctl+0xd6e/0x1390
[   50.311994][ T7873] kasan: CONFIG_KASAN_INLINE enabled
[   50.314002][ T7872]  ? ioctl_preallocate+0x210/0x210
[   50.319635][ T7873] kasan: GPF could be caused by NULL-ptr deref or user memory access
[   50.325469][ T7872]  ? __fget+0x381/0x550
[   50.362084][ T7872]  ? ksys_dup3+0x3e0/0x3e0
[   50.366518][ T7872]  ? tomoyo_file_ioctl+0x23/0x30
[   50.371470][ T7872]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[   50.377733][ T7872]  ? security_file_ioctl+0x93/0xc0
[   50.382857][ T7872]  ksys_ioctl+0xab/0xd0
[   50.387036][ T7872]  __x64_sys_ioctl+0x73/0xb0
[   50.391640][ T7872]  do_syscall_64+0x103/0x670
[   50.396246][ T7872]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[   50.402148][ T7872] RIP: 0033:0x446779
[   50.406048][ T7872] Code: e8 5c b3 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 0b 08 fc ff c3 66 2e 0f 1f 84 00 00 00 00
[   50.425740][ T7872] RSP: 002b:00007f7adb926db8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[   50.434156][ T7872] RAX: ffffffffffffffda RBX: 00000000006dbc48 RCX: 0000000000446779
[   50.442219][ T7872] RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000005
[   50.450194][ T7872] RBP: 00000000006dbc40 R08: 0000000000000000 R09: 0000000000000000
[   50.458168][ T7872] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc4c
[   50.466148][ T7872] R13: 00007fff1cfa7c1f R14: 00007f7adb9279c0 R15: 20c49ba5e353f7cf
[   50.474133][ T7872] Modules linked in:
[   50.478047][ T7872] ---[ end trace da6276bd16a5f99d ]---
[   50.478059][ T7873] general protection fault: 0000 [#2] PREEMPT SMP KASAN
[   50.478082][ T7873] CPU: 1 PID: 7873 Comm: syz-executor233 Tainted: G      D           5.1.0-rc6-next-20190423 #29
[   50.483536][ T7872] RIP: 0010:vcpu_enter_guest+0xbcd/0x5fb0
[   50.490486][ T7873] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   50.500991][ T7872] Code: 48 c1 ea 03 80 3c 02 00 0f 85 6f 48 00 00 49 8b 9f b0 03 00 00 48 b8 00 00 00 00 00 fc ff df 48 8d 7b 78 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e 39 48 00 00 8b 5b 78 31 ff 89
[   50.506715][ T7873] RIP: 0010:vcpu_enter_guest+0xbcd/0x5fb0
[   50.516760][ T7872] RSP: 0018:ffff88808bd4fa00 EFLAGS: 00010006
[   50.536385][ T7873] Code: 48 c1 ea 03 80 3c 02 00 0f 85 6f 48 00 00 49 8b 9f b0 03 00 00 48 b8 00 00 00 00 00 fc ff df 48 8d 7b 78 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e 39 48 00 00 8b 5b 78 31 ff 89
[   50.542202][ T7872] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff810d1ec9
[   50.548266][ T7873] RSP: 0018:ffff88808e07fa00 EFLAGS: 00010006
[   50.567887][ T7872] RDX: 000000000000000f RSI: ffffffff810ceef2 RDI: 0000000000000078
[   50.575876][ T7873] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff810d1ec9
[   50.581941][ T7872] RBP: ffff88808bd4fb10 R08: ffff8880a912e580 R09: ffffed1015d05dd0
[   50.589910][ T7873] RDX: 000000000000000f RSI: ffffffff810ceef2 RDI: 0000000000000078
[   50.597888][ T7872] R10: ffffed1015d05dcf R11: ffff8880ae82ee7b R12: ffff88808f3e006c
[   50.605859][ T7873] RBP: ffff88808e07fb10 R08: ffff88808c30a380 R09: fffff52000bc0e01
[   50.605878][ T7873] R10: fffff52000bc0e00 R11: ffffc90005e07003 R12: ffff8880966280ac
[   50.613854][ T7872] R13: 0000000000000001 R14: ffff88808f3e0070 R15: ffff88808f3e0040
[   50.621830][ T7873] R13: 0000000000000001 R14: ffff8880966280b0 R15: ffff888096628080
[   50.629806][ T7872] FS:  00007f7adb927700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000
[   50.637781][ T7873] FS:  00007f7adb906700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
[   50.645789][ T7872] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   50.653759][ T7873] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   50.662688][ T7872] CR2: 00007fa0427eb000 CR3: 00000000939e4000 CR4: 00000000001426f0
[   50.671634][ T7873] CR2: 00007fa0427ea000 CR3: 00000000939e4000 CR4: 00000000001426e0
[   50.678195][ T7872] Kernel panic - not syncing: Fatal exception
[   50.684778][ T7873] Call Trace:
[   50.710217][ T7873]  ? emulator_read_emulated+0x50/0x50
[   50.715611][ T7873]  ? lock_acquire+0x16f/0x3f0
[   50.720484][ T7873]  ? kvm_arch_vcpu_ioctl_run+0x240/0x1750
[   50.726215][ T7873]  ? __local_bh_enable_ip+0x15a/0x270
[   50.731613][ T7873]  kvm_arch_vcpu_ioctl_run+0x425/0x1750
[   50.737172][ T7873]  ? kvm_arch_vcpu_ioctl_run+0x425/0x1750
[   50.742903][ T7873]  kvm_vcpu_ioctl+0x4dc/0xf90
[   50.747612][ T7873]  ? kvm_set_memory_region+0x50/0x50
[   50.752926][ T7873]  ? tomoyo_path_number_perm+0x263/0x520
[   50.758570][ T7873]  ? tomoyo_execute_permission+0x4a0/0x4a0
[   50.764398][ T7873]  ? kvm_set_memory_region+0x50/0x50
[   50.769694][ T7873]  do_vfs_ioctl+0xd6e/0x1390
[   50.774301][ T7873]  ? ioctl_preallocate+0x210/0x210
[   50.779421][ T7873]  ? __fget+0x381/0x550
[   50.783592][ T7873]  ? ksys_dup3+0x3e0/0x3e0
[   50.788022][ T7873]  ? tomoyo_file_ioctl+0x23/0x30
[   50.792973][ T7873]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[   50.799234][ T7873]  ? security_file_ioctl+0x93/0xc0
[   50.804357][ T7873]  ksys_ioctl+0xab/0xd0
[   50.808518][ T7873]  __x64_sys_ioctl+0x73/0xb0
[   50.813116][ T7873]  do_syscall_64+0x103/0x670
[   50.817719][ T7873]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[   50.823625][ T7873] RIP: 0033:0x446779
[   50.827523][ T7873] Code: e8 5c b3 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 0b 08 fc ff c3 66 2e 0f 1f 84 00 00 00 00
[   50.847222][ T7873] RSP: 002b:00007f7adb905db8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[   50.855643][ T7873] RAX: ffffffffffffffda RBX: 00000000006dbc58 RCX: 0000000000446779
[   50.863706][ T7873] RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000008
[   50.871681][ T7873] RBP: 00000000006dbc50 R08: 0000000000000000 R09: 0000000000000000
[   50.879673][ T7873] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc5c
[   50.887661][ T7873] R13: 00007fff1cfa7c1f R14: 00007f7adb9069c0 R15: 20c49ba5e353f7cf
[   50.895663][ T7873] Modules linked in:
[   50.899571][ T7873] ---[ end trace da6276bd16a5f99e ]---
[   50.905054][ T7873] RIP: 0010:vcpu_enter_guest+0xbcd/0x5fb0
[   50.910785][ T7873] Code: 48 c1 ea 03 80 3c 02 00 0f 85 6f 48 00 00 49 8b 9f b0 03 00 00 48 b8 00 00 00 00 00 fc ff df 48 8d 7b 78 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e 39 48 00 00 8b 5b 78 31 ff 89
[   50.930391][ T7873] RSP: 0018:ffff88808bd4fa00 EFLAGS: 00010006
[   50.936458][ T7873] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff810d1ec9
[   50.944432][ T7873] RDX: 000000000000000f RSI: ffffffff810ceef2 RDI: 0000000000000078
[   50.952406][ T7873] RBP: ffff88808bd4fb10 R08: ffff8880a912e580 R09: ffffed1015d05dd0
[   50.960381][ T7873] R10: ffffed1015d05dcf R11: ffff8880ae82ee7b R12: ffff88808f3e006c
[   50.968360][ T7873] R13: 0000000000000001 R14: ffff88808f3e0070 R15: ffff88808f3e0040
[   50.976337][ T7873] FS:  00007f7adb906700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
[   50.985273][ T7873] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   50.991860][ T7873] CR2: 00007fa0427ea000 CR3: 00000000939e4000 CR4: 00000000001426e0
[   51.812819][ T7872] Shutting down cpus with NMI
[   51.818275][ T7872] Kernel Offset: disabled
[   51.822623][ T7872] Rebooting in 86400 seconds..