INIT: Entering runlevel: 2

[info] Using makefile-style concurrent boot in runlevel 2.
[....] Starting enhanced syslogd: rsyslogd[?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 '10.128.10.16' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   40.582485] Not allocated shadow for addr ffff8801bac00000 (page ffffea000a608000)
[   40.590205] Attempted to access 4096 bytes
[   40.594446] ------------[ cut here ]------------
[   40.599174] kernel BUG at mm/kmsan/kmsan.c:1326!
[   40.603911] invalid opcode: 0000 [#1] SMP PTI
[   40.608387] Dumping ftrace buffer:
[   40.611897]    (ftrace buffer empty)
[   40.615582] Modules linked in:
[   40.618752] CPU: 1 PID: 4507 Comm: syz-executor216 Not tainted 4.16.0+ #87
[   40.625740] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   40.635080] RIP: 0010:kmsan_get_shadow_address+0x1ce/0x1f0
[   40.640688] RSP: 0018:ffff8801c1dcf880 EFLAGS: 00010086
[   40.646033] RAX: 000000000000001e RBX: 00000000000006e0 RCX: 0000000000000000
[   40.653293] RDX: 0000000000000000 RSI: 0000000000000008 RDI: 0000000000000000
[   40.660557] RBP: ffff8801c1dcf898 R08: 0000000000000000 R09: 0000000000000001
[   40.667804] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8801bac00000
[   40.675058] R13: 0000000000008000 R14: 0000000000000001 R15: 0000000000001000
[   40.682309] FS:  00000000018ed880(0000) GS:ffff88021fd00000(0000) knlGS:0000000000000000
[   40.690513] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   40.696369] CR2: 0000000020351ff0 CR3: 000000019954c000 CR4: 00000000001406e0
[   40.703617] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   40.710867] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   40.718113] Call Trace:
[   40.720687]  kmsan_internal_unpoison_shadow+0x5c/0xe0
[   40.725865]  kmsan_unpoison_shadow+0x66/0xb0
[   40.730251]  get_user_pages_fast+0x47b/0x760
[   40.734643]  iov_iter_get_pages+0x465/0x1810
[   40.739057]  af_alg_make_sg+0xdf/0x6d0
[   40.742939]  ? hash_sendmsg+0x584/0x1110
[   40.746978]  hash_sendmsg+0x305/0x1110
[   40.750846]  ? hash_accept+0x880/0x880
[   40.754708]  SYSC_sendto+0x6c3/0x7e0
[   40.758410]  SyS_sendto+0x8a/0xb0
[   40.761841]  do_syscall_64+0x309/0x430
[   40.765706]  ? SYSC_getpeername+0x560/0x560
[   40.770010]  entry_SYSCALL_64_after_hwframe+0x3d/0xa2
[   40.775186] RIP: 0033:0x43fe19
[   40.778353] RSP: 002b:00007ffe1ace3c98 EFLAGS: 00000212 ORIG_RAX: 000000000000002c
[   40.786208] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 000000000043fe19
[   40.793467] RDX: fffffffffffffeee RSI: 00000000205c8f58 RDI: 0000000000000004
[   40.800714] RBP: 00000000006ca018 R08: 0000000020351ff0 R09: 0000000000000010
[   40.807961] R10: 0000000000000000 R11: 0000000000000212 R12: 0000000000401740
[   40.815211] R13: 00000000004017d0 R14: 0000000000000000 R15: 0000000000000000
[   40.822458] Code: 75 29 48 c7 c7 fd 92 7d 8a 31 c0 e8 4d 68 86 ff 80 3c 25 e8 03 2c 8b 00 75 11 48 c7 c7 2d 93 7d 8a 31 c0 4c 89 fe e8 32 68 86 ff <0f> 0b eb fe 48 3d ff ff ff 1f 0f 87 a2 fe ff ff 48 8b 1c 25 10 
[   40.841549] RIP: kmsan_get_shadow_address+0x1ce/0x1f0 RSP: ffff8801c1dcf880
[   40.848630] ---[ end trace 0ce935dbb86a9654 ]---
[   40.853359] Kernel panic - not syncing: Fatal exception
[   40.859241] Dumping ftrace buffer:
[   40.862767]    (ftrace buffer empty)
[   40.866449] Kernel Offset: disabled
[   40.870048] Rebooting in 86400 seconds..