[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c.
[....] Starting OpenBSD Secure Shell server: sshd[   22.503640] random: sshd: uninitialized urandom read (32 bytes read)
[?25l[?1c7[ ok 8[?25h[?0c.

Debian GNU/Linux 7 syzkaller ttyS0

syzkaller login: [   26.700053] random: sshd: uninitialized urandom read (32 bytes read)
[   27.007375] random: sshd: uninitialized urandom read (32 bytes read)
[   27.732798] random: sshd: uninitialized urandom read (32 bytes read)
[   27.882653] random: sshd: uninitialized urandom read (32 bytes read)
Warning: Permanently added '10.128.10.35' (ECDSA) to the list of known hosts.
[   33.353599] random: sshd: uninitialized urandom read (32 bytes read)
2018/05/09 14:15:00 parsed 1 programs
2018/05/09 14:15:00 executed programs: 0
[   33.818221] IPVS: ftp: loaded support on port[0] = 21
[   34.254752] 
[   34.256392] =============================
[   34.260514] WARNING: suspicious RCU usage
[   34.264638] 4.17.0-rc4+ #64 Not tainted
[   34.268585] -----------------------------
[   34.272710] arch/x86/kernel/traps.c:537 entry code didn't wake RCU!
[   34.279088] 
[   34.279088] other info that might help us debug this:
[   34.279088] 
[   34.287226] 
[   34.287226] RCU used illegally from idle CPU!
[   34.287226] rcu_scheduler_active = 2, debug_locks = 1
[   34.298206] RCU used illegally from extended quiescent state!
[   34.304065] no locks held by swapper/0/0.
[   34.308186] 
[   34.308186] stack backtrace: