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 '10.128.0.10' (ECDSA) to the list of known hosts.
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syzkaller login: [   45.162918] Not allocated shadow for addr ffff8801ad79d000 (page ffffea000a10dae0)
[   45.170646] Attempted to access 4096 bytes
[   45.174888] ------------[ cut here ]------------
[   45.179616] kernel BUG at mm/kmsan/kmsan.c:1326!
[   45.184353] invalid opcode: 0000 [#1] SMP PTI
[   45.188822] Dumping ftrace buffer:
[   45.192332]    (ftrace buffer empty)
[   45.196019] Modules linked in:
[   45.199214] CPU: 1 PID: 4948 Comm: syzkaller974951 Not tainted 4.16.0+ #81
[   45.206202] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   45.215559] RIP: 0010:kmsan_get_shadow_address+0x1ce/0x1f0
[   45.221158] RSP: 0018:ffff8801a660f540 EFLAGS: 00010086
[   45.226494] RAX: 000000000000001e RBX: 00000000000006a0 RCX: 0000000000000000
[   45.233745] RDX: 0000000000000000 RSI: 0000000000000008 RDI: 0000000000000000
[   45.241000] RBP: ffff8801a660f558 R08: 0000000000000000 R09: 0000000000000001
[   45.248251] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8801ad79d000
[   45.255498] R13: 0000000000001000 R14: 0000000000000001 R15: 0000000000001000
[   45.262744] FS:  0000000000e2d880(0000) GS:ffff88021fd00000(0000) knlGS:0000000000000000
[   45.270943] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   45.276800] CR2: 0000000020895fe0 CR3: 00000001c3706000 CR4: 00000000001406e0
[   45.284053] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   45.291304] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   45.298550] Call Trace:
[   45.301121]  kmsan_internal_unpoison_shadow+0x5c/0xe0
[   45.306287]  kmsan_unpoison_shadow+0x66/0xb0
[   45.310673]  get_user_pages_fast+0x47b/0x760
[   45.315072]  iov_iter_get_pages+0x465/0x1810
[   45.319469]  af_alg_make_sg+0xdf/0x6d0
[   45.323331]  ? __kmalloc+0x23c/0x350
[   45.327038]  ? __list_add_valid+0xb8/0x450
[   45.331268]  af_alg_get_rsgl+0x746/0xe10
[   45.335314]  skcipher_recvmsg+0x546/0x1940
[   45.339529]  sock_recvmsg+0x1d0/0x230
[   45.343307]  ? skcipher_sendmsg+0x160/0x160
[   45.347607]  ___sys_recvmsg+0x3fb/0x810
[   45.351565]  ? __fget_light+0x56/0x710
[   45.355428]  ? __fdget+0x4e/0x60
[   45.358770]  ? __fget_light+0x1dc/0x710
[   45.362721]  ? __msan_metadata_ptr_for_load_4+0x10/0x20
[   45.368070]  ? __fget_light+0x1f5/0x710
[   45.372037]  SYSC_recvmsg+0x298/0x3c0
[   45.375825]  SyS_recvmsg+0x54/0x80
[   45.379343]  do_syscall_64+0x309/0x430
[   45.383210]  ? ___sys_recvmsg+0x810/0x810
[   45.387334]  entry_SYSCALL_64_after_hwframe+0x3d/0xa2
[   45.392499] RIP: 0033:0x4414c9
[   45.395665] RSP: 002b:00007ffe8a4aaf68 EFLAGS: 00000217 ORIG_RAX: 000000000000002f
[   45.403352] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004414c9
[   45.410609] RDX: 0000000000000000 RSI: 0000000020dac000 RDI: 0000000000000004
[   45.417856] RBP: 0000000000000000 R08: 000000008a4ab0e8 R09: 000000008a4ab0e8
[   45.425100] R10: 000000008a4ab0e8 R11: 0000000000000217 R12: 000000000000b05c
[   45.432351] R13: 00000000006cd448 R14: 0000000000000000 R15: 0000000000000000
[   45.439601] 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 
[   45.458684] RIP: kmsan_get_shadow_address+0x1ce/0x1f0 RSP: ffff8801a660f540
[   45.465759] ---[ end trace db452e588a845a17 ]---
[   45.470488] Kernel panic - not syncing: Fatal exception
[   45.476248] Dumping ftrace buffer:
[   45.479766]    (ftrace buffer empty)
[   45.483446] Kernel Offset: disabled
[   45.487042] Rebooting in 86400 seconds..