[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c.
[....] Starting OpenBSD Secure Shell server: sshd[   19.085972] random: sshd: uninitialized urandom read (32 bytes read)
[?25l[?1c7[ ok 8[?25h[?0c.

Debian GNU/Linux 7 syzkaller ttyS0

syzkaller login: [   23.322985] random: sshd: uninitialized urandom read (32 bytes read)
[   23.741907] random: sshd: uninitialized urandom read (32 bytes read)
[   24.694955] random: sshd: uninitialized urandom read (32 bytes read)
[   38.508745] random: sshd: uninitialized urandom read (32 bytes read)
Warning: Permanently added '10.128.0.62' (ECDSA) to the list of known hosts.
[   44.000530] random: sshd: uninitialized urandom read (32 bytes read)
2018/05/02 09:29:50 parsed 1 programs
2018/05/02 09:29:50 executed programs: 0
[   44.676902] IPVS: ftp: loaded support on port[0] = 21
[   44.744847] WARNING: CPU: 1 PID: 4515 at sound/core/pcm_lib.c:2057 __snd_pcm_lib_xfer+0x7c3/0x1d10
[   44.754008] Kernel panic - not syncing: panic_on_warn set ...
[   44.754008] 
[   44.761388] CPU: 1 PID: 4515 Comm: syz-executor0 Not tainted 4.17.0-rc3+ #53
[   44.768579] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   44.778094] Call Trace:
[   44.780715]  dump_stack+0x1b9/0x294
[   44.784358]  ? dump_stack_print_info.cold.2+0x52/0x52
[   44.789573]  ? __snd_pcm_lib_xfer+0x750/0x1d10
[   44.794181]  panic+0x22f/0x4de
[   44.797384]  ? add_taint.cold.5+0x16/0x16
[   44.802536]  ? __warn.cold.8+0x148/0x1b3
[   44.806681]  ? __warn.cold.8+0x117/0x1b3
[   44.810962]  ? __snd_pcm_lib_xfer+0x7c3/0x1d10
[   44.815725]  __warn.cold.8+0x163/0x1b3
[   44.819747]  ? __snd_pcm_lib_xfer+0x7c3/0x1d10
[   44.824691]  report_bug+0x252/0x2d0
[   44.828370]  do_error_trap+0x1de/0x490
[   44.832542]  ? math_error+0x420/0x420
[   44.836359]  ? debug_check_no_locks_freed+0x310/0x310
[   44.841582]  ? get_futex_key+0x1e90/0x1e90
[   44.845847]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   44.850709]  do_invalid_op+0x1b/0x20
[   44.854442]  invalid_op+0x14/0x20
[   44.857913] RIP: 0010:__snd_pcm_lib_xfer+0x7c3/0x1d10
[   44.863466] RSP: 0018:ffff8801ad5f7898 EFLAGS: 00010293
[   44.868836] RAX: ffff8801ada36540 RBX: ffff8801d9334640 RCX: 0000000000000000
[   44.876103] RDX: 0000000000000000 RSI: ffffffff85c3d673 RDI: ffff8801d9334958
[   44.883367] RBP: ffff8801ad5f7b38 R08: 0000000000000000 R09: 0000000000000000
[   44.891160] R10: 0000000000000003 R11: 0000000000000000 R12: ffffffff884949c0
[   44.898504] R13: 0000000000000000 R14: ffff8801d9334640 R15: ffff8801cdd26dc0
[   44.906286]  ? __snd_pcm_lib_xfer+0x7c3/0x1d10
[   44.910871]  ? __snd_pcm_lib_xfer+0x7c3/0x1d10
[   44.915460]  ? graph_lock+0x170/0x170
[   44.919252]  ? exit_robust_list+0x290/0x290
[   44.923566]  ? pcm_lib_apply_appl_ptr+0x5a0/0x5a0
[   44.928395]  ? find_held_lock+0x36/0x1c0
[   44.932454]  ? lock_downgrade+0x8e0/0x8e0
[   44.936595]  ? lock_release+0xa10/0xa10
[   44.940567]  ? check_same_owner+0x320/0x320
[   44.944876]  ? vm_insert_mixed_mkwrite+0x40/0x40
[   44.949630]  ? graph_lock+0x170/0x170
[   44.953512]  ? __kmalloc+0x25/0x760
[   44.957128]  ? __might_sleep+0x95/0x190
[   44.961106]  ? snd_pcm_ioctl_xfern_compat+0x180/0x330
[   44.966289]  snd_pcm_ioctl_xfern_compat+0x266/0x330
[   44.971390]  ? __sanitizer_cov_trace_switch+0x53/0x90
[   44.976601]  snd_pcm_ioctl_compat+0xc96/0x1c90
[   44.981188]  ? snd_pcm_status_user_x32+0x710/0x710
[   44.986114]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[   44.991642]  ? __fget_light+0x2ef/0x430
[   44.995607]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[   45.001164]  ? fget_raw+0x20/0x20
[   45.004610]  ? __handle_mm_fault+0x4310/0x4310
[   45.009191]  ? __ia32_compat_sys_futex+0x3de/0x5e0
[   45.014262]  ? __x32_compat_sys_get_robust_list+0x430/0x430
[   45.019977]  ? __sanitizer_cov_trace_switch+0x53/0x90
[   45.025605]  ? snd_pcm_status_user_x32+0x710/0x710
[   45.030519]  __ia32_compat_sys_ioctl+0x221/0x640
[   45.035262]  do_fast_syscall_32+0x345/0xf9b
[   45.039657]  ? do_int80_syscall_32+0x880/0x880
[   45.044218]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[   45.048967]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[   45.054495]  ? syscall_return_slowpath+0x30f/0x5c0
[   45.059425]  ? sysret32_from_system_call+0x5/0x46
[   45.064262]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   45.069180]  entry_SYSENTER_compat+0x70/0x7f
[   45.073569] RIP: 0023:0xf7fddcb9
[   45.076913] RSP: 002b:00000000ffd717ec EFLAGS: 00000286 ORIG_RAX: 0000000000000036
[   45.084600] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00000000800c4153
[   45.091947] RDX: 0000000020000040 RSI: 0000000000000000 RDI: 0000000000000000
[   45.099195] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[   45.106529] R10: 0000000000000000 R11: 0000000000000292 R12: 0000000000000000
[   45.113781] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
[   45.121774] Dumping ftrace buffer:
[   45.125512]    (ftrace buffer empty)
[   45.129391] Kernel Offset: disabled
[   45.133046] Rebooting in 86400 seconds..