[....] 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[   32.104818] random: sshd: uninitialized urandom read (32 bytes read)
[?25l[?1c7[ ok 8[?25h[?0c.

Debian GNU/Linux 7 syzkaller ttyS0

syzkaller login: [   35.264876] random: sshd: uninitialized urandom read (32 bytes read)
[   35.673925] random: sshd: uninitialized urandom read (32 bytes read)
[   37.078555] random: sshd: uninitialized urandom read (32 bytes read)
Warning: Permanently added '10.128.10.8' (ECDSA) to the list of known hosts.
[   42.715572] random: sshd: uninitialized urandom read (32 bytes read)
2018/07/02 16:22:58 fuzzer started
[   44.041363] random: cc1: uninitialized urandom read (8 bytes read)
2018/07/02 16:23:01 dialing manager at 10.128.0.26:36811
2018/07/02 16:23:04 syscalls: 1518
2018/07/02 16:23:04 code coverage: enabled
2018/07/02 16:23:04 comparison tracing: ioctl(KCOV_TRACE_CMP) failed: errno 524
2018/07/02 16:23:04 setuid sandbox: enabled
2018/07/02 16:23:04 namespace sandbox: enabled
2018/07/02 16:23:04 fault injection: enabled
2018/07/02 16:23:04 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2018/07/02 16:23:04 net packed injection: enabled
[   50.079632] random: crng init done
[   88.777398] ==================================================================
[   88.784819] BUG: KMSAN: uninit-value in sg_init_one+0x1f7/0x290
[   88.790871] CPU: 0 PID: 8 Comm: ksoftirqd/0 Not tainted 4.17.0+ #16
[   88.797263] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   88.806687] Call Trace:
[   88.809265]  dump_stack+0x185/0x1d0
[   88.812868]  kmsan_report+0x188/0x2a0
[   88.816657]  __msan_warning_32+0x70/0xc0
[   88.820706]  sg_init_one+0x1f7/0x290
[   88.825297]  try_fill_recv+0x6ed/0x2580
[   88.829262]  virtnet_poll+0xfe3/0x1420
[   88.833125]  ? kmsan_set_origin_inline+0x6b/0x120
[   88.837949]  ? refill_work+0x2c0/0x2c0
[   88.841817]  net_rx_action+0x766/0x1a80
[   88.845779]  ? net_tx_action+0xad0/0xad0
[   88.849819]  __do_softirq+0x592/0x979
[   88.853603]  ? ksoftirqd_should_run+0x30/0x30
[   88.858072]  run_ksoftirqd+0x24/0x40
[   88.861764]  smpboot_thread_fn+0x4ac/0x9a0
[   88.865993]  kthread+0x4db/0x6c0
[   88.869339]  ? cpu_report_death+0x1f0/0x1f0
[   88.873641]  ? kthread_blkcg+0xf0/0xf0
[   88.877516]  ret_from_fork+0x35/0x40
[   88.881202] 
[   88.882802] Local variable description: ----list@net_rx_action
[   88.888745] Variable was created at:
[   88.892444]  net_rx_action+0x6e/0x1a80
[   88.896314]  __do_softirq+0x592/0x979
[   88.900100] ==================================================================
[   88.907439] Disabling lock debugging due to kernel taint
[   88.912877] Kernel panic - not syncing: panic_on_warn set ...
[   88.912877] 
[   88.920227] CPU: 0 PID: 8 Comm: ksoftirqd/0 Tainted: G    B             4.17.0+ #16
[   88.927993] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   88.937329] Call Trace:
[   88.939898]  dump_stack+0x185/0x1d0
[   88.943591]  panic+0x3d0/0x990
[   88.946765]  kmsan_report+0x29e/0x2a0
[   88.950549]  __msan_warning_32+0x70/0xc0
[   88.954592]  sg_init_one+0x1f7/0x290
[   88.958295]  try_fill_recv+0x6ed/0x2580
[   88.962250]  virtnet_poll+0xfe3/0x1420
[   88.966116]  ? kmsan_set_origin_inline+0x6b/0x120
[   88.970954]  ? refill_work+0x2c0/0x2c0
[   88.974821]  net_rx_action+0x766/0x1a80
[   88.978779]  ? net_tx_action+0xad0/0xad0
[   88.982820]  __do_softirq+0x592/0x979
[   88.986598]  ? ksoftirqd_should_run+0x30/0x30
[   88.991077]  run_ksoftirqd+0x24/0x40
[   88.994785]  smpboot_thread_fn+0x4ac/0x9a0
[   88.999000]  kthread+0x4db/0x6c0
[   89.002343]  ? cpu_report_death+0x1f0/0x1f0
[   89.006648]  ? kthread_blkcg+0xf0/0xf0
[   89.010517]  ret_from_fork+0x35/0x40
[   89.014704] Dumping ftrace buffer:
[   89.018234]    (ftrace buffer empty)
[   89.021919] Kernel Offset: disabled
[   89.025531] Rebooting in 86400 seconds..