[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[ 18.169971] random: sshd: uninitialized urandom read (32 bytes read) [?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 19.809732] random: sshd: uninitialized urandom read (32 bytes read) [ 20.139136] random: sshd: uninitialized urandom read (32 bytes read) [ 20.997556] random: sshd: uninitialized urandom read (32 bytes read) [ 21.154956] random: sshd: uninitialized urandom read (32 bytes read) Warning: Permanently added '10.128.10.16' (ECDSA) to the list of known hosts. [ 26.589766] random: sshd: uninitialized urandom read (32 bytes read) executing program [ 26.681374] ================================================================== [ 26.688811] BUG: KASAN: slab-out-of-bounds in fscache_alloc_cookie+0x7a9/0x880 [ 26.696151] Read of size 4 at addr ffff8801ad286c14 by task syz-executor055/4386 [ 26.703657] [ 26.705269] CPU: 1 PID: 4386 Comm: syz-executor055 Not tainted 4.18.0-rc6+ #165 [ 26.712689] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 26.722023] Call Trace: [ 26.724602] dump_stack+0x1c9/0x2b4 [ 26.728214] ? dump_stack_print_info.