[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. Starting mcstransd: [ 9.962638] random: sshd: uninitialized urandom read (32 bytes read) [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 29.528475] random: sshd: uninitialized urandom read (32 bytes read) [ 29.553301] random: crng init done Warning: Permanently added '10.128.10.63' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 39.968171] input: syz1 as /devices/virtual/input/input161 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 40.103257] ------------[ cut here ]------------ [ 40.108302] WARNING: CPU: 1 PID: 2369 at mm/page_alloc.c:3556 __alloc_pages_nodemask+0x13a0/0x1bd0 [ 40.117795] Kernel panic - not syncing: panic_on_warn set ... [ 40.117795] [ 40.125147] CPU: 1 PID: 2369 Comm: syz-executor849 Not tainted 4.9.140+ #22 [ 40.134830] ffff8801cea6f858 ffffffff81b42e79 ffffffff82a38ce0 00000000ffffffff [ 40.142838] ffffffff82a96600 0000000000000001 0000000000000009 ffff8801cea6f918 [ 40.151008] ffffffff813f7125 0000000041b58ab3 ffffffff82e2b45b ffffffff813f6f66 [ 40.159191] Call Trace: [ 40.161867] [] dump_stack+0xc1/0x128 [ 40.167214] [] panic+0x1bf/0x39f [ 40.172488] [] ? add_taint.cold.5+0x16/0x16 [ 40.172493] [] ? __warn.cold.8+0x14/0x2f [ 40.172501] [] ? __alloc_pages_nodemask+0x13a0/0x1bd0 [ 40.172512] [] __warn.cold.8+0x2f/0x2f [ 40.172520] [] warn_slowpath_null+0x2c/0x40 [ 40.172525] [] __alloc_pages_nodemask+0x13a0/0x1bd0 [ 40.172532] [] ? get_futex_key_refs.isra.4+0xa0/0xa0 [ 40.172538] [] ? debug_lockdep_rcu_enabled+0x77/0x90 [ 40.172543] [] ? gfp_pfmemalloc_allowed+0x110/0x110 [ 40.172551] [] ? avc_has_extended_perms+0x42f/0xd90 [ 40.172555] [] ? avc_has_extended_perms+0x56a/0xd90 [ 40.172559] [] ? avc_has_extended_perms+0xde/0xd90 [ 40.172565] [] ? __switch_to_asm+0x34/0x70 [ 40.172571] [] ? mark_held_locks+0xc7/0x130 [ 40.172578] [] ? mutex_lock_interruptible_nested+0x7f3/0x9c0 [ 40.172582] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 40.172589] [] kmalloc_order+0x2a/0x70 [ 40.172593] [] kmalloc_order_trace+0x1f/0x190 [ 40.172608] [] __kmalloc+0x1ae/0x310 [ 40.172617] [] input_mt_init_slots+0xcb/0x400 [ 40.172623] [] uinput_ioctl_handler.isra.4+0x161d/0x1980 [ 40.172627] [] ? uinput_ff_upload_from_user+0x350/0x350 [ 40.172634] [] ? selinux_file_ioctl+0x10a/0x550 [ 40.172638] [] ? selinux_parse_skb.constprop.42+0x1a90/0x1a90 [ 40.172645] [] ? check_preemption_disabled+0x3b/0x200 [ 40.172651] [] ? __fget+0x214/0x3d0 [ 40.172655] [] ? __fget+0x23b/0x3d0 [ 40.172659] [] ? __fget+0x47/0x3d0 [ 40.172664] [] ? uinput_ioctl_handler.isra.4+0x1980/0x1980 [ 40.172669] [] uinput_compat_ioctl+0x5f/0x80 [ 40.172676] [] compat_SyS_ioctl+0x12d/0x1fd0 [ 40.172680] [] ? do_ioctl+0x60/0x60 [ 40.172685] [] do_fast_syscall_32+0x2f1/0xa10 [ 40.172692] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 40.172698] [] entry_SYSENTER_compat+0x90/0xa2 [ 40.178834] Kernel Offset: disabled [ 40.396763] Rebooting in 86400 seconds..