[....] Starting periodic command scheduler: cron[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. Starting mcstransd: [ 10.146661] random: sshd: uninitialized urandom read (32 bytes read) [....] 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. [ 10.884874] random: crng init done Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.1.27' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 35.823158] ------------[ cut here ]------------ [ 35.823929] WARNING: CPU: 1 PID: 2048 at mm/page_alloc.c:3556 __alloc_pages_nodemask+0x13a0/0x1bd0 [ 35.825222] Kernel panic - not syncing: panic_on_warn set ... [ 35.825222] [ 35.826250] CPU: 1 PID: 2048 Comm: syz-executor743 Not tainted 4.9.141+ #1 [ 35.827193] ffff8801cefd7708 ffffffff81b42e79 ffffffff82a38ce0 00000000ffffffff [ 35.828450] ffffffff82a96600 0000000000000001 0000000000000009 ffff8801cefd77c8 [ 35.829608] ffffffff813f7125 0000000041b58ab3 ffffffff82e2b62b ffffffff813f6f66 [ 35.830869] Call Trace: [ 35.831255] [] dump_stack+0xc1/0x128 [ 35.832002] [] panic+0x1bf/0x39f [ 35.832688] [] ? add_taint.cold.5+0x16/0x16 [ 35.833554] [] ? __warn.cold.8+0x14/0x2f [ 35.834383] [] ? __alloc_pages_nodemask+0x13a0/0x1bd0 [ 35.835470] [] __warn.cold.8+0x2f/0x2f [ 35.836232] [] warn_slowpath_null+0x2c/0x40 [ 35.837060] [] __alloc_pages_nodemask+0x13a0/0x1bd0 [ 35.837943] [] ? gfp_pfmemalloc_allowed+0x110/0x110 [ 35.838924] [] ? trace_hardirqs_on+0x10/0x10 [ 35.839894] [] ? mark_held_locks+0xc7/0x130 [ 35.840751] [] ? mutex_lock_interruptible_nested+0x7f3/0x9c0 [ 35.841751] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 35.842914] [] kmalloc_order+0x2a/0x70 [ 35.846718] [] kmalloc_order_trace+0x1f/0x190 [ 35.852854] [] __kmalloc+0x1ae/0x310 [ 35.858205] [] ? avc_has_extended_perms+0x56a/0xd90 [ 35.864851] [] ? avc_has_extended_perms+0xde/0xd90 [ 35.871480] [] input_mt_init_slots+0xcb/0x400 [ 35.877747] [] uinput_ioctl_handler.isra.4+0x161d/0x1980 [ 35.884886] [] ? avc_ss_reset+0x110/0x110 [ 35.890667] [] ? uinput_ff_upload_from_user+0x350/0x350 [ 35.897668] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 35.904490] [] ? _raw_spin_unlock_irqrestore+0x45/0x70 [ 35.911478] [] uinput_ioctl+0x4c/0x60 [ 35.916908] [] ? uinput_compat_ioctl+0x80/0x80 [ 35.923132] [] do_vfs_ioctl+0x1ac/0x11a0 [ 35.928857] [] ? ioctl_preallocate+0x220/0x220 [ 35.935070] [] ? kmem_cache_free+0x28f/0x310 [ 35.941163] [] ? selinux_parse_skb.constprop.42+0x1a90/0x1a90 [ 35.948686] [] ? putname+0xe0/0x110 [ 35.954204] [] ? do_sys_open+0x224/0x5c0 [ 35.959903] [] ? filp_open+0x70/0x70 [ 35.965250] [] ? security_file_ioctl+0x8f/0xc0 [ 35.971523] [] SyS_ioctl+0x8f/0xc0 [ 35.976701] [] ? do_vfs_ioctl+0x11a0/0x11a0 [ 35.982875] [] do_syscall_64+0x19f/0x550 [ 35.988569] [] entry_SYSCALL_64_after_swapgs+0x5d/0xdb [ 35.995546] Kernel Offset: disabled [ 35.999168] Rebooting in 86400 seconds..