[ 14.493621] random: sshd: uninitialized urandom read (32 bytes read, 32 bits of entropy available) [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 18.887724] random: sshd: uninitialized urandom read (32 bytes read, 36 bits of entropy available) [ 19.344015] random: sshd: uninitialized urandom read (32 bytes read, 37 bits of entropy available) [ 20.038726] random: sshd: uninitialized urandom read (32 bytes read, 75 bits of entropy available) [ 20.200359] random: sshd: uninitialized urandom read (32 bytes read, 81 bits of entropy available) Warning: Permanently added 'ci-android-44-kasan-gce-4,10.128.0.37' (ECDSA) to the list of known hosts. [ 25.603656] random: sshd: uninitialized urandom read (32 bytes read, 83 bits of entropy available) 2017/12/14 03:17:20 parsed 1 programs 2017/12/14 03:17:20 executed programs: 0 [ 26.154812] IPVS: Creating netns size=2552 id=1 [ 26.181140] ------------[ cut here ]------------ [ 26.186219] WARNING: CPU: 1 PID: 3329 at mm/page_alloc.c:3069 __alloc_pages_nodemask+0x62a/0x16e0() [ 26.195473] Kernel panic - not syncing: panic_on_warn set ... [ 26.195473] [ 26.202817] CPU: 1 PID: 3329 Comm: syz-executor0 Not tainted 4.4.105-gb5797f6 #6 [ 26.210313] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 26.219629] 0000000000000000 00eeab9261e96fc7 ffff8801d72c75c8 ffffffff81cc9b4f [ 26.227578] ffffffff83842ac0 ffff8801d72c76a0 ffff8801d72c7690 ffffffff813fc616 [ 26.235524] 0000000041b58ab3 ffffffff83fa57e0 ffffffff813fc48f 0000000041b58ab3 [ 26.243470] Call Trace: [ 26.246019] [] dump_stack+0x8e/0xcf [ 26.251257] [] panic+0x187/0x2f1 [ 26.256237] [] ? percpu_up_read.constprop.46+0xc3/0xc3 [ 26.263126] [] warn_slowpath_common+0x108/0x120 [ 26.269407] [] ? __alloc_pages_nodemask+0x62a/0x16e0 [ 26.276119] [] warn_slowpath_null+0x15/0x20 [ 26.282051] [] __alloc_pages_nodemask+0x62a/0x16e0 [ 26.288593] [] ? _raw_spin_unlock_irq+0x27/0x50 [ 26.294876] [] ? __alloc_pages_direct_compact+0x250/0x250 [ 26.302030] [] ? futex_wait_queue_me+0x364/0x590 [ 26.308401] [] ? refill_pi_state_cache.part.7+0x230/0x230 [ 26.315555] [] alloc_kmem_pages+0x12/0x20 [ 26.321316] [] kmalloc_order+0x19/0x60 [ 26.326814] [] kmalloc_order_trace+0x1f/0x1a0 [ 26.332923] [] __kmalloc+0x19a/0x300 [ 26.338250] [] vga_arb_write+0xd2/0xd40 [ 26.343835] [] ? vga_get+0x450/0x450 [ 26.349172] [] ? __check_object_size+0x100/0x2b0 [ 26.355556] [] ? rw_copy_check_uvector+0x9a/0x380 [ 26.362029] [] do_loop_readv_writev+0x11c/0x1e0 [ 26.368324] [] ? security_file_permission+0x6a/0x190 [ 26.375050] [] ? vga_get+0x450/0x450 [ 26.380384] [] ? vga_get+0x450/0x450 [ 26.385716] [] do_readv_writev+0x552/0x660 [ 26.391560] [] ? vfs_write+0x520/0x520 [ 26.397061] [] ? _raw_spin_unlock_irqrestore+0x5a/0x70 [ 26.403956] [] ? __lock_is_held+0xa1/0xf0 [ 26.409713] [] ? __fget+0x1c2/0x320 [ 26.414951] [] ? __fget+0x1df/0x320 [ 26.420186] [] ? __fget+0x42/0x320 [ 26.425339] [] vfs_writev+0x5d/0xa0 [ 26.430579] [] ? __fdget_pos+0x13/0xb0 [ 26.436078] [] SyS_writev+0xd3/0x260 [ 26.441404] [] ? SyS_readv+0x260/0x260 [ 26.446902] [] ? lockdep_sys_exit_thunk+0x12/0x14 [ 26.453357] [] entry_SYSCALL_64_fastpath+0x16/0x76 [ 26.460015] Dumping ftrace buffer: [ 26.463551] (ftrace buffer empty) [ 26.467229] Kernel Offset: disabled [ 26.470837] Rebooting in 86400 seconds..