[  OK  ] Reached target Login Prompts.
[  OK  ] Reached target Multi-User System.
[  OK  ] Reached target Graphical Interface.
         Starting Update UTMP about System Runlevel Changes...
[  OK  ] Started Update UTMP about System Runlevel Changes.


Debian GNU/Linux 9 syzkaller ttyS0

Warning: Permanently added '10.128.0.124' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   82.512086] audit: type=1400 audit(1595571743.201:8): avc:  denied  { execmem } for  pid=6341 comm="syz-executor300" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1
[   82.514766] netlink: 24 bytes leftover after parsing attributes in process `syz-executor300'.
[   82.598856] kasan: CONFIG_KASAN_INLINE enabled
[   82.604478] kasan: GPF could be caused by NULL-ptr deref or user memory access
[   82.611862] general protection fault: 0000 [#1] PREEMPT SMP KASAN
[   82.618097] Modules linked in:
[   82.621293] CPU: 1 PID: 6359 Comm: syz-executor300 Not tainted 4.14.189-syzkaller #0
[   82.629171] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   82.638566] task: ffff88809b3fc180 task.stack: ffff888097ed8000
[   82.644656] RIP: 0010:__vxlan_dev_create+0x5d6/0x970
[   82.649743] RSP: 0018:ffff888097edf178 EFLAGS: 00010a02
[   82.655088] RAX: dffffc0000000000 RBX: 1ffff11012fdbe31 RCX: 1ffff11012fdbe20
[   82.662341] RDX: 1bd5a00000000040 RSI: ffff88809b3fca30 RDI: ffff8880a7dab888
[   82.669593] RBP: 0000000000000000 R08: ffffffff8a0979f8 R09: 0000000000000000
[   82.676852] R10: 0000000000000000 R11: 0000000000000000 R12: 00000000fffffff0
[   82.685072] R13: ffff8880a7dab880 R14: dead000000000200 R15: ffff88808605a200
[   82.692339] FS:  00007efce5dca700(0000) GS:ffff8880aeb00000(0000) knlGS:0000000000000000
[   82.700544] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   82.706404] CR2: 00007efce5dc9db8 CR3: 00000000a117c000 CR4: 00000000001406e0
[   82.713656] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   82.720906] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   82.728156] Call Trace:
[   82.730725]  ? vxlan_fdb_add+0x2e0/0x2e0
[   82.734766]  ? vxlan_setup+0x460/0x460
[   82.738633]  ? rcu_read_lock_sched_held+0x16c/0x1d0
[   82.743633]  ? kmem_cache_alloc_node_trace+0x383/0x400
[   82.748905]  vxlan_newlink+0xa3/0xe0
[   82.752596]  ? __vxlan_dev_create+0x970/0x970
[   82.757075]  ? rtnl_create_link+0x129/0x890
[   82.761383]  rtnl_newlink+0xf88/0x1810
[   82.765272]  ? __lock_acquire+0x2190/0x3f20
[   82.769576]  ? __vxlan_dev_create+0x970/0x970
[   82.774054]  ? rtnl_dellink+0x6a0/0x6a0
[   82.778019]  ? trace_hardirqs_on+0x10/0x10
[   82.782241]  ? lock_acquire+0x170/0x3f0
[   82.786193]  ? lock_downgrade+0x740/0x740
[   82.790325]  ? rtnl_dellink+0x6a0/0x6a0
[   82.794298]  rtnetlink_rcv_msg+0x3be/0xb10
[   82.798527]  ? rtnl_calcit.isra.0+0x3a0/0x3a0
[   82.803000]  ? __netlink_lookup+0x345/0x5d0
[   82.807301]  netlink_rcv_skb+0x125/0x390
[   82.811351]  ? rtnl_calcit.isra.0+0x3a0/0x3a0
[   82.815824]  ? netlink_ack+0x9a0/0x9a0
[   82.819689]  netlink_unicast+0x437/0x610
[   82.823744]  ? netlink_sendskb+0xd0/0xd0
[   82.827780]  netlink_sendmsg+0x62e/0xb80
[   82.831837]  ? nlmsg_notify+0x170/0x170
[   82.835801]  ? security_socket_sendmsg+0x83/0xb0
[   82.840533]  ? nlmsg_notify+0x170/0x170
[   82.844487]  sock_sendmsg+0xb5/0x100
[   82.848178]  sock_no_sendpage+0xe2/0x110
[   82.852235]  ? __sk_mem_schedule+0xd0/0xd0
[   82.856452]  ? __sk_mem_schedule+0xd0/0xd0
[   82.860679]  sock_sendpage+0xdf/0x140
[   82.864478]  pipe_to_sendpage+0x226/0x2d0
[   82.868606]  ? sockfs_setattr+0x140/0x140
[   82.872748]  ? direct_splice_actor+0x160/0x160
[   82.877317]  __splice_from_pipe+0x326/0x7a0
[   82.881619]  ? direct_splice_actor+0x160/0x160
[   82.886185]  generic_splice_sendpage+0xc1/0x110
[   82.890882]  ? vmsplice_to_user+0x1b0/0x1b0
[   82.895202]  ? rw_verify_area+0xe1/0x2a0
[   82.899240]  ? vmsplice_to_user+0x1b0/0x1b0
[   82.903557]  SyS_splice+0xd59/0x1380
[   82.907256]  ? _raw_spin_unlock_irq+0x24/0x80
[   82.911733]  ? compat_SyS_vmsplice+0x150/0x150
[   82.916298]  ? do_syscall_64+0x4c/0x640
[   82.920251]  ? compat_SyS_vmsplice+0x150/0x150
[   82.924815]  do_syscall_64+0x1d5/0x640
[   82.928685]  entry_SYSCALL_64_after_hwframe+0x46/0xbb
[   82.933852] RIP: 0033:0x44a179
[   82.937014] RSP: 002b:00007efce5dc9cd8 EFLAGS: 00000246 ORIG_RAX: 0000000000000113
[   82.944764] RAX: ffffffffffffffda RBX: 00000000006dbc58 RCX: 000000000044a179
[   82.952049] RDX: 0000000000000008 RSI: 0000000000000000 RDI: 0000000000000006
[   82.959342] RBP: 00000000006dbc50 R08: 000000000004ffe2 R09: 0000000000000000
[   82.966613] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc5c
[   82.973866] R13: 00007ffff019aadf R14: 00007efce5dca9c0 R15: 20c49ba5e353f7cf
[   82.981122] Code: 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 09 03 00 00 48 b8 00 00 00 00 00 fc ff df 4d 8b 75 08 4c 89 f2 48 c1 ea 03 <80> 3c 02 00 0f 85 dd 02 00 00 49 89 2e 4d 8d 7d 10 48 85 ed 0f 
[   83.000218] RIP: __vxlan_dev_create+0x5d6/0x970 RSP: ffff888097edf178
[   83.010410] ---[ end trace a21bf13a87774a16 ]---
[   83.015261] Kernel panic - not syncing: Fatal exception
[   83.021714] Kernel Offset: disabled
[   83.025326] Rebooting in 86400 seconds..