[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[ 5.845198] random: sshd: uninitialized urandom read (32 bytes read) [?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 21.530090] random: sshd: uninitialized urandom read (32 bytes read) [ 21.688149] random: sshd: uninitialized urandom read (32 bytes read) [ 22.098588] random: sshd: uninitialized urandom read (32 bytes read) [ 30.927235] random: sshd: uninitialized urandom read (32 bytes read) Warning: Permanently added '10.128.0.29' (ECDSA) to the list of known hosts. [ 36.311943] random: sshd: uninitialized urandom read (32 bytes read) [ 36.380628] ------------[ cut here ]------------ [ 36.380629] precision 1047814 too large [ 36.380630] WARNING: CPU: 1 PID: 4074 at lib/vsprintf.c:2164 vsnprintf+0x95b/0x9e0 [ 36.380631] Kernel panic - not syncing: panic_on_warn set ... [ 36.380632] [ 36.380633] CPU: 1 PID: 4074 Comm: syz-executor978 Not tainted 4.18.0-rc5+ #30 [ 36.380634] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.380634] Call Trace: [ 36.380635] dump_stack+0xae/0xf0 [ 36.380635] ? vsnprintf+0x95b/0x9e