[info] Using makefile-style concurrent boot in runlevel 2.
[....] Starting enhanced syslogd: rsyslogd[    9.176907] rsyslogd (2962) used greatest stack depth: 14992 bytes left
[?25l[?1c7[ ok 8[?25h[?0c.
[....] 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 'ci-upstream-next-kasan-gce-6,10.128.15.199' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   48.180910] BUG: unable to handle kernel paging request at 00000000c1168b58
[   48.181996] IP: crypto_chacha20_crypt+0x557/0xbd0
[   48.182648] PGD 5e28067 P4D 5e28067 PUD 0 
[   48.183220] Oops: 0000 [#1] SMP KASAN
[   48.183736] Dumping ftrace buffer:
[   48.184211]    (ftrace buffer empty)
[   48.184707] Modules linked in:
[   48.185142] CPU: 1 PID: 3089 Comm: syzkaller743839 Not tainted 4.15.0-rc2-next-20171204+ #58
[   48.186259] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   48.187494] task: 000000005cbe757b task.stack: 00000000867a2408
[   48.188294] RIP: 0010:crypto_chacha20_crypt+0x557/0xbd0
[   48.189001] RSP: 0018:ffff8801cb117680 EFLAGS: 00010246
[   48.189711] RAX: ffff8801cb1176f0 RBX: 00000000e6000000 RCX: ffffffff8226e6db
[   48.190689] RDX: 0000000000000000 RSI: ffff8801cda7a340 RDI: ffff8801cb11771c
[   48.191670] RBP: ffff8801cb1178a0 R08: ffffed0039ae8034 R09: ffff8801cd740180
[   48.192626] R10: ffff8801cb1178b8 R11: ffffed0039ae8033 R12: 0000000000000000
[   48.193607] R13: ffffffff00000001 R14: 0000000000000000 R15: dffffc0000000000
[   48.194674] FS:  0000000000d91880(0000) GS:ffff8801db500000(0000) knlGS:0000000000000000
[   48.195766] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   48.196541] CR2: ffffffff00000001 CR3: 00000001cde9c000 CR4: 00000000001406e0
[   48.197496] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   48.198448] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   48.199399] Call Trace:
[   48.199762]  ? crypto_chacha20_setkey+0xc0/0xc0
[   48.200391]  ? rcu_read_lock_sched_held+0x108/0x120
[   48.201085]  ? sock_kmalloc+0x112/0x190
[   48.205031]  ? refcount_inc_not_zero+0xfe/0x180
[   48.209665]  ? refcount_add+0x60/0x60
[   48.213430]  ? lock_sock_nested+0x91/0x110
[   48.217633]  ? trace_hardirqs_on+0xd/0x10
[   48.221751]  skcipher_recvmsg+0x739/0xf20
[   48.225861]  ? skcipher_recvmsg+0x739/0xf20
[   48.230155]  ? skcipher_release+0x50/0x50
[   48.234270]  ? selinux_socket_recvmsg+0x36/0x40
[   48.238905]  ? security_socket_recvmsg+0x91/0xc0
[   48.243627]  ? skcipher_release+0x50/0x50
[   48.247740]  sock_recvmsg+0xc9/0x110
[   48.251420]  sock_read_iter+0x361/0x560
[   48.255359]  ? sock_recvmsg+0x110/0x110
[   48.259299]  ? selinux_file_permission+0x82/0x460
[   48.264111]  ? rw_verify_area+0xe5/0x2b0
[   48.268141]  aio_read+0x2b0/0x3a0
[   48.271562]  ? aio_write+0x5a0/0x5a0
[   48.275245]  ? lock_downgrade+0x980/0x980
[   48.279360]  ? lock_release+0xda0/0xda0
[   48.283302]  ? refcount_inc_not_zero+0xfe/0x180
[   48.287965]  ? refcount_add+0x60/0x60
[   48.291750]  ? __might_sleep+0x95/0x190
[   48.295707]  do_io_submit+0xf99/0x14f0
[   48.299562]  ? do_io_submit+0xf99/0x14f0
[   48.303594]  ? aio_read+0x3a0/0x3a0
[   48.307190]  ? mm_fault_error+0x2c0/0x2c0
[   48.311304]  ? __fd_install+0x288/0x740
[   48.315242]  ? anon_inode_getfile+0x349/0x490
[   48.319703]  ? do_page_fault+0xee/0x720
[   48.323643]  ? __init_waitqueue_head+0x97/0x140
[   48.328273]  ? __do_page_fault+0xc90/0xc90
[   48.332485]  ? trace_hardirqs_on_caller+0x421/0x5c0
[   48.337467]  SyS_io_submit+0x27/0x30
[   48.341145]  ? SyS_io_submit+0x27/0x30
[   48.344999]  entry_SYSCALL_64_fastpath+0x1f/0x96
[   48.349725] RIP: 0033:0x43ffb9
[   48.352881] RSP: 002b:00007ffd56b8b768 EFLAGS: 00000203 ORIG_RAX: 00000000000000d1
[   48.360554] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 000000000043ffb9
[   48.367789] RDX: 0000000020738000 RSI: 0000000000000002 RDI: 00007ff5846ed000
[   48.375023] RBP: 00000000006ca018 R08: 0000000000401920 R09: 0000000000401920
[   48.382257] R10: 0000000000000000 R11: 0000000000000203 R12: 0000000000401920
[   48.389490] R13: 00000000004019b0 R14: 0000000000000000 R15: 0000000000000000
[   48.396737] Code: df 89 9d 7c fe ff ff 48 c1 ea 03 0f b6 14 02 4c 89 e8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 99 05 00 00 48 8b 85 28 fe ff ff <41> 8b 5d 00 48 8d 78 30 48 b8 00 00 00 00 00 fc ff df 48 89 fa 
[   48.415804] RIP: crypto_chacha20_crypt+0x557/0xbd0 RSP: ffff8801cb117680
[   48.422606] CR2: ffffffff00000001
[   48.426029] ---[ end trace e7f88b492f608109 ]---
[   48.430747] Kernel panic - not syncing: Fatal exception
[   48.436453] Dumping ftrace buffer:
[   48.439967]    (ftrace buffer empty)
[   48.443647] Kernel Offset: disabled
[   48.447241] Rebooting in 86400 seconds..