[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c.
[....] Starting OpenBSD Secure Shell server: sshd[   19.119721] random: sshd: uninitialized urandom read (32 bytes read)
[?25l[?1c7[ ok 8[?25h[?0c.
[   19.262572] random: sshd: uninitialized urandom read (32 bytes read)
[   19.672216] random: sshd: uninitialized urandom read (32 bytes read)

Debian GNU/Linux 7 syzkaller ttyS0

syzkaller login: [   20.417038] random: sshd: uninitialized urandom read (32 bytes read)
[  174.325210] random: sshd: uninitialized urandom read (32 bytes read)
Warning: Permanently added '10.128.0.7' (ECDSA) to the list of known hosts.
[  179.772330] random: sshd: uninitialized urandom read (32 bytes read)
[  180.152863] ==================================================================
[  180.160326] BUG: KASAN: use-after-free in do_general_protection+0x2ac/0x2f0
[  180.167405] Read of size 8 at addr ffff8801d7187398 by task syz-executor171/4544
[  180.174910] 
[  180.176521] CPU: 0 PID: 4544 Comm: syz-executor171 Not tainted 4.17.0-rc6+ #67
[  180.183856] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  180.193190] Call Trace:
[  180.195748] 
[  180.197351] The buggy address belongs to the page:
[  180.202256] page:ffffea00075c61c0 count:0 mapcount:0 mapping:0000000000000000 index:0x0
[  180.210374] flags: 0x2fffc0000000000()
[  180.214241] raw: 02fffc0000000000 0000000000000000 0000000000000000 00000000ffffffff
[  180.222100] raw: 0000000000000000 ffffea00075c0101 0000000000000000 0000000000000000
[  180.229954] page dumped because: kasan: bad access detected
[  180.235633] 
[  180.237235] Memory state around the buggy address:
[  180.242138]  ffff8801d7187280: 00 00 ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[  180.249471]  ffff8801d7187300: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[  180.256807] >ffff8801d7187380: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[  180.264139]                             ^
[  180.268259]  ffff8801d7187400: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[  180.275592]  ffff8801d7187480: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[  180.282922] ==================================================================
[  180.290256] Disabling lock debugging due to kernel taint
[  180.295679] Kernel panic - not syncing: panic_on_warn set ...
[  180.295679] 
[  180.303019] CPU: 0 PID: 4544 Comm: syz-executor171 Tainted: G    B             4.17.0-rc6+ #67
[  180.311742] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  180.321085] Call Trace:
[  180.324047] Dumping ftrace buffer:
[  180.327563]    (ftrace buffer empty)
[  180.331249] Kernel Offset: disabled
[  180.334853] Rebooting in 86400 seconds..