[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c.
[....] Starting OpenBSD Secure Shell server: sshd[   30.957288] random: sshd: uninitialized urandom read (32 bytes read)
[?25l[?1c7[ ok 8[?25h[?0c.

Debian GNU/Linux 7 syzkaller ttyS0

syzkaller login: [   33.760885] random: sshd: uninitialized urandom read (32 bytes read)
[   34.146000] random: sshd: uninitialized urandom read (32 bytes read)
[   35.350767] random: sshd: uninitialized urandom read (32 bytes read)
[   48.090654] random: sshd: uninitialized urandom read (32 bytes read)
Warning: Permanently added '10.128.0.27' (ECDSA) to the list of known hosts.
[   53.577126] random: sshd: uninitialized urandom read (32 bytes read)
executing program
[   53.688246] ==================================================================
[   53.695628] BUG: KMSAN: uninit-value in tipc_conn_rcv_sub+0x184/0x950
[   53.702181] CPU: 0 PID: 66 Comm: kworker/u4:4 Not tainted 4.17.0-rc3+ #88
[   53.709079] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   53.718416] Workqueue: tipc_rcv tipc_conn_recv_work
[   53.723408] Call Trace:
[   53.725975]  dump_stack+0x185/0x1d0
[   53.729577]  ? tipc_conn_rcv_sub+0x184/0x950
[   53.733961]  kmsan_report+0x142/0x240
[   53.737736]  __msan_warning_32+0x6c/0xb0
[   53.741772]  tipc_conn_rcv_sub+0x184/0x950
[   53.745983]  tipc_conn_recv_work+0x3cd/0x560
[   53.750368]  ? tipc_conn_send_work+0x1090/0x1090
[   53.755097]  process_one_work+0x12c6/0x1f60
[   53.759400]  worker_thread+0x113c/0x24f0
[   53.763438]  ? process_one_work+0x1f60/0x1f60
[   53.767910]  kthread+0x539/0x720
[   53.771248]  ? process_one_work+0x1f60/0x1f60
[   53.775720]  ? kthread_blkcg+0xf0/0xf0
[   53.779581]  ret_from_fork+0x35/0x40
[   53.783270] 
[   53.784872] Local variable description: ----s.i@tipc_conn_recv_work
[   53.791243] Variable was created at:
[   53.794934]  tipc_conn_recv_work+0x65/0x560
[   53.799229]  process_one_work+0x12c6/0x1f60
[   53.803519] ==================================================================
[   53.810848] Disabling lock debugging due to kernel taint
[   53.816269] Kernel panic - not syncing: panic_on_warn set ...
[   53.816269] 
[   53.823610] CPU: 0 PID: 66 Comm: kworker/u4:4 Tainted: G    B             4.17.0-rc3+ #88
[   53.831900] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   53.841238] Workqueue: tipc_rcv tipc_conn_recv_work
[   53.846224] Call Trace:
[   53.848790]  dump_stack+0x185/0x1d0
[   53.852393]  panic+0x39d/0x940
[   53.855570]  ? tipc_conn_rcv_sub+0x184/0x950
[   53.859956]  kmsan_report+0x238/0x240
[   53.863731]  __msan_warning_32+0x6c/0xb0
[   53.867767]  tipc_conn_rcv_sub+0x184/0x950
[   53.871979]  tipc_conn_recv_work+0x3cd/0x560
[   53.876364]  ? tipc_conn_send_work+0x1090/0x1090
[   53.881094]  process_one_work+0x12c6/0x1f60
[   53.885393]  worker_thread+0x113c/0x24f0
[   53.889434]  ? process_one_work+0x1f60/0x1f60
[   53.893905]  kthread+0x539/0x720
[   53.897242]  ? process_one_work+0x1f60/0x1f60
[   53.901713]  ? kthread_blkcg+0xf0/0xf0
[   53.905577]  ret_from_fork+0x35/0x40
[   53.909658] Dumping ftrace buffer:
[   53.913172]    (ftrace buffer empty)
[   53.916854] Kernel Offset: disabled
[   53.920455] Rebooting in 86400 seconds..