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 '10.128.10.20' (ECDSA) to the list of known hosts.
executing program
executing program
syzkaller login: [   35.079710] Not allocated shadow for addr ffff8801a3373000 (page ffffea0009d34b20)
[   35.087628] Attempted to access 4096 bytes
[   35.091976] ------------[ cut here ]------------
[   35.096750] kernel BUG at mm/kmsan/kmsan.c:1326!
[   35.101529] invalid opcode: 0000 [#1] SMP PTI
[   35.106041] Dumping ftrace buffer:
[   35.109597]    (ftrace buffer empty)
[   35.113303] Modules linked in:
[   35.116502] CPU: 1 PID: 3589 Comm: syzkaller234058 Not tainted 4.16.0+ #84
[   35.123506] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   35.132878] RIP: 0010:kmsan_get_shadow_address+0x1ce/0x1f0
[   35.138499] RSP: 0018:ffff8801d525f380 EFLAGS: 00010086
[   35.143876] RAX: 000000000000001e RBX: 0000000000000680 RCX: 0000000000000000
[   35.151165] RDX: 0000000000000000 RSI: 0000000000000008 RDI: 0000000000000000
[   35.158518] RBP: ffff8801d525f398 R08: 0000000000000000 R09: 0000000000000001
[   35.165785] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8801a3373000
[   35.173156] R13: 0000000000001000 R14: 0000000000000001 R15: 0000000000001000
[   35.180446] FS:  0000000001fdc940(0000) GS:ffff88021fd00000(0000) knlGS:0000000000000000
[   35.188676] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.194571] CR2: 00000000204c1f80 CR3: 00000001a54ea000 CR4: 00000000001406e0
[   35.201861] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   35.209132] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   35.216396] Call Trace:
[   35.219003]  kmsan_internal_unpoison_shadow+0x5c/0xe0
[   35.224219]  kmsan_unpoison_shadow+0x66/0xb0
[   35.228652]  get_user_pages_fast+0x47b/0x760
[   35.233078]  iov_iter_get_pages+0x465/0x1810
[   35.237534]  af_alg_make_sg+0xdf/0x6d0
[   35.241444]  ? __kmalloc+0x23c/0x350
[   35.245169]  ? __list_add_valid+0xb8/0x450
[   35.249422]  af_alg_get_rsgl+0x746/0xe10
[   35.253509]  skcipher_recvmsg+0x546/0x1940
[   35.257863]  ? release_sock+0x237/0x2a0
[   35.261897]  skcipher_recvmsg_nokey+0x129/0x160
[   35.266686]  sock_recvmsg+0x1d0/0x230
[   35.270504]  ? skcipher_sendmsg_nokey+0x1f0/0x1f0
[   35.275370]  ___sys_recvmsg+0x3fb/0x810
[   35.279361]  ? __fget_light+0x56/0x710
[   35.283247]  ? __fdget+0x4e/0x60
[   35.286627]  ? __fget_light+0x1dc/0x710
[   35.290617]  ? __msan_metadata_ptr_for_load_4+0x10/0x20
[   35.295980]  ? __fget_light+0x1f5/0x710
[   35.299966]  __sys_recvmmsg+0x54e/0xdb0
[   35.303966]  ? kmsan_set_origin+0x9e/0x160
[   35.308219]  SYSC_recvmmsg+0x29b/0x3e0
[   35.312135]  SyS_recvmmsg+0x76/0xa0
[   35.315775]  do_syscall_64+0x309/0x430
[   35.319675]  ? __sys_recvmmsg+0xdb0/0xdb0
[   35.323847]  entry_SYSCALL_64_after_hwframe+0x3d/0xa2
[   35.329042] RIP: 0033:0x441bc9
[   35.332241] RSP: 002b:00007fff1f894c58 EFLAGS: 00000246 ORIG_RAX: 000000000000012b
[   35.339956] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441bc9
[   35.347244] RDX: 0000000000000001 RSI: 0000000020ee6f10 RDI: 0000000000000004
[   35.354522] RBP: 0000000000000000 R08: 00000000205a3000 R09: 0000000000000e04
[   35.361802] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000000088ee
[   35.369086] R13: 00000000006ce448 R14: 0000000000000000 R15: 0000000000000000
[   35.376457] Code: 75 29 48 c7 c7 71 2a a1 87 31 c0 e8 0d 11 86 ff 80 3c 25 a8 a4 2d 88 00 75 11 48 c7 c7 a1 2a a1 87 31 c0 4c 89 fe e8 f2 10 86 ff <0f> 0b eb fe 48 3d ff ff ff 1f 0f 87 a2 fe ff ff 48 8b 1c 25 10 
[   35.395692] RIP: kmsan_get_shadow_address+0x1ce/0x1f0 RSP: ffff8801d525f380
[   35.402823] ---[ end trace b6961f7dccfae081 ]---
[   35.407605] Kernel panic - not syncing: Fatal exception
[   35.413587] Dumping ftrace buffer:
[   35.417142]    (ftrace buffer empty)
[   35.420848] Kernel Offset: disabled
[   35.424487] Rebooting in 86400 seconds..