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 '10.128.10.2' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   41.893743] Not allocated shadow for addr ffff8801a1400000 (page ffffea0009c78000)
[   41.901474] Attempted to access 4096 bytes
[   41.905711] ------------[ cut here ]------------
[   41.910439] kernel BUG at mm/kmsan/kmsan.c:1326!
[   41.915178] invalid opcode: 0000 [#1] SMP PTI
[   41.919651] Dumping ftrace buffer:
[   41.923162]    (ftrace buffer empty)
[   41.926846] Modules linked in:
[   41.930029] CPU: 1 PID: 4524 Comm: syz-executor255 Not tainted 4.16.0+ #87
[   41.937030] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   41.946382] RIP: 0010:kmsan_get_shadow_address+0x1ce/0x1f0
[   41.951977] RSP: 0018:ffff8801991cf880 EFLAGS: 00010086
[   41.957316] RAX: 000000000000001e RBX: 0000000000000680 RCX: 0000000000000000
[   41.964563] RDX: 0000000000000000 RSI: 0000000000000008 RDI: 0000000000000000
[   41.971812] RBP: ffff8801991cf898 R08: 0000000000000000 R09: 0000000000000001
[   41.979059] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8801a1400000
[   41.986305] R13: 0000000000008000 R14: 0000000000000001 R15: 0000000000001000
[   41.993556] FS:  0000000000c06880(0000) GS:ffff88021fd00000(0000) knlGS:0000000000000000
[   42.001767] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   42.007639] CR2: 0000000020351ff0 CR3: 0000000198f5e000 CR4: 00000000001406e0
[   42.014887] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   42.022137] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   42.029384] Call Trace:
[   42.031957]  kmsan_internal_unpoison_shadow+0x5c/0xe0
[   42.037128]  kmsan_unpoison_shadow+0x66/0xb0
[   42.041517]  get_user_pages_fast+0x47b/0x760
[   42.045906]  iov_iter_get_pages+0x465/0x1810
[   42.050307]  af_alg_make_sg+0xdf/0x6d0
[   42.054170]  ? hash_sendmsg+0x584/0x1110
[   42.058214]  hash_sendmsg+0x305/0x1110
[   42.062093]  ? hash_accept+0x880/0x880
[   42.065960]  SYSC_sendto+0x6c3/0x7e0
[   42.069656]  SyS_sendto+0x8a/0xb0
[   42.073087]  do_syscall_64+0x309/0x430
[   42.076954]  ? SYSC_getpeername+0x560/0x560
[   42.081256]  entry_SYSCALL_64_after_hwframe+0x3d/0xa2
[   42.086420] RIP: 0033:0x440049
[   42.089596] RSP: 002b:00007ffc008343e8 EFLAGS: 00000212 ORIG_RAX: 000000000000002c
[   42.097287] RAX: ffffffffffffffda RBX: 00007ffc00834410 RCX: 0000000000440049
[   42.104546] RDX: fffffffffffffeee RSI: 00000000205c8f58 RDI: 0000000000000004
[   42.111813] RBP: 00000000006cb018 R08: 0000000020351ff0 R09: 0000000000000010
[   42.119063] R10: 0000000000000000 R11: 0000000000000212 R12: 0000000000401910
[   42.126308] R13: 00000000004019a0 R14: 0000000000000000 R15: 0000000000000000
[   42.133557] 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 
[   42.152645] RIP: kmsan_get_shadow_address+0x1ce/0x1f0 RSP: ffff8801991cf880
[   42.159722] ---[ end trace 6bc7d282af698052 ]---
[   42.164450] Kernel panic - not syncing: Fatal exception
[   42.170229] Dumping ftrace buffer:
[   42.173748]    (ftrace buffer empty)
[   42.177436] Kernel Offset: disabled
[   42.181038] Rebooting in 86400 seconds..