INIT: Entering runlevel: 2 [[36minfo[39;49m] Using makefile-style concurrent boot in runlevel 2. [....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. [....] Starting periodic command scheduler: cron[?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 Warning: Permanently added '10.128.10.63' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 29.536327] ------------[ cut here ]------------ [ 29.541117] WARNING: CPU: 1 PID: 2254 at mm/page_alloc.c:3069 __alloc_pages_nodemask+0x1249/0x13f0() [ 29.550473] Kernel panic - not syncing: panic_on_warn set ... [ 29.550473] [ 29.557829] CPU: 1 PID: 2254 Comm: syz-executor069 Not tainted 4.4.153+ #91 [ 29.564904] 0000000000000000 f40c4818eb8edbec ffff8801cc217728 ffffffff81a4510d [ 29.572898] ffffffff828352a0 ffff8800b645c740 ffffffff828844a0 0000000000000009 [ 29.580895] 0000000000000bfd ffff8801cc2177e8 ffffffff81389cc4 0000000041b58ab3 [ 29.588887] Call Trace: [ 29.591454] [] dump_stack+0xc1/0x124 [ 29.596796] [] panic+0x19e/0x359 [ 29.601787] [] ? add_taint.cold.4+0x16/0x16 [ 29.607735] [] ? warn_slowpath_common.cold.6+0x5/0x20 [ 29.614549] [] warn_slowpath_common.cold.6+0x20/0x20 [ 29.621275] [] ? __alloc_pages_nodemask+0x1249/0x13f0 [ 29.628094] [] warn_slowpath_null+0x29/0x30 [ 29.634046] [] __alloc_pages_nodemask+0x1249/0x13f0 [ 29.641989] [] ? debug_lockdep_rcu_enabled+0x77/0x90 [ 29.648718] [] ? __alloc_pages_direct_compact+0x220/0x220 [ 29.655890] [] ? mntput_no_expire+0xcc/0x6c0 [ 29.661947] [] ? mntput_no_expire+0xf8/0x6c0 [ 29.667989] [] ? mnt_get_count+0x170/0x170 [ 29.673866] [] ? dput.part.9+0x16d/0x760 [ 29.679560] [] ? dput.part.9+0x2a/0x760 [ 29.685166] [] ? mntput+0x66/0x90 [ 29.690281] [] ? is_module_text_address+0x2a/0x50 [ 29.696752] [] alloc_kmem_pages+0x12/0x20 [ 29.702526] [] kmalloc_order+0x1f/0x70 [ 29.708055] [] kmalloc_order_trace+0x1f/0x1a0 [ 29.714179] [] __kmalloc+0x19d/0x310 [ 29.719521] [] vga_arb_write+0xd8/0xcb0 [ 29.725119] [] ? kasan_slab_free+0x119/0x190 [ 29.731153] [] ? vga_str_to_iostate.isra.4+0x130/0x130 [ 29.738057] [] ? kasan_slab_free+0xac/0x190 [ 29.743999] [] ? kmem_cache_free+0xbe/0x340 [ 29.749952] [] ? putname+0xdb/0x110 [ 29.755201] [] ? do_sys_open+0x2ca/0x610 [ 29.760912] [] ? SyS_openat+0x30/0x40 [ 29.766345] [] ? entry_SYSCALL_64_fastpath+0x1e/0x9a [ 29.773072] [] ? debug_check_no_obj_freed+0x160/0x890 [ 29.779894] [] ? _raw_spin_unlock_irqrestore+0x5a/0x70 [ 29.786799] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 29.793613] [] __vfs_write+0x11c/0x3e0 [ 29.799128] [] ? vga_str_to_iostate.isra.4+0x130/0x130 [ 29.806029] [] ? __vfs_read+0x3d0/0x3d0 [ 29.811630] [] ? check_preemption_disabled+0x3b/0x170 [ 29.818446] [] ? putname+0xdb/0x110 [ 29.823697] [] ? avc_policy_seqno+0x9/0x20 [ 29.829559] [] ? selinux_file_permission+0x2f2/0x450 [ 29.836285] [] ? security_file_permission+0x8f/0x1e0 [ 29.843013] [] ? rw_verify_area+0x100/0x2f0 [ 29.848960] [] vfs_write+0x17e/0x4e0 [ 29.854296] [] SyS_write+0xd9/0x1c0 [ 29.859548] [] ? SyS_read+0x1c0/0x1c0 [ 29.865000] [] ? lockdep_sys_exit_thunk+0x12/0x14 [ 29.871469] [] entry_SYSCALL_64_fastpath+0x1e/0x9a [ 29.878421] Dumping ftrace buffer: [ 29.882014] (ftrace buffer empty) [ 29.885703] Kernel Offset: disabled [ 29.889316] Rebooting in 86400 seconds..