Starting mcstransd: [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[ 10.155961] random: sshd: uninitialized urandom read (32 bytes read) [?25l[?1c7[ ok 8[?25h[?0c. [ 10.989749] random: crng init done Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.192' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 28.672107] ------------[ cut here ]------------ [ 28.672899] WARNING: CPU: 0 PID: 2039 at mm/page_alloc.c:3556 __alloc_pages_nodemask+0x13a0/0x1bd0 [ 28.674106] Kernel panic - not syncing: panic_on_warn set ... [ 28.674106] [ 28.675328] CPU: 0 PID: 2039 Comm: syz-executor954 Not tainted 4.9.141+ #23 [ 28.676365] ffff8801c4ec6fb8 ffffffff81b42e79 ffffffff82a38ce0 00000000ffffffff [ 28.677670] ffffffff82a96600 0000000000000000 0000000000000009 ffff8801c4ec7078 [ 28.678887] ffffffff813f7125 0000000041b58ab3 ffffffff82e2b62b ffffffff813f6f66 [ 28.680091] Call Trace: [ 28.680479] [] dump_stack+0xc1/0x128 [ 28.681354] [] panic+0x1bf/0x39f [ 28.682077] [] ? add_taint.cold.5+0x16/0x16 [ 28.682974] [] ? __warn.cold.8+0x14/0x2f [ 28.683894] [] ? __alloc_pages_nodemask+0x13a0/0x1bd0 [ 28.684881] [] __warn.cold.8+0x2f/0x2f [ 28.685627] [] warn_slowpath_null+0x2c/0x40 [ 28.686507] [] __alloc_pages_nodemask+0x13a0/0x1bd0 [ 28.687653] [] ? save_stack_trace+0x16/0x20 [ 28.688495] [] ? kasan_kmalloc.part.1+0x62/0xf0 [ 28.689392] [] ? kasan_kmalloc+0xaf/0xc0 [ 28.690188] [] ? __kmalloc+0x12f/0x310 [ 28.690975] [] ? hashtab_create+0x120/0x210 [ 28.691851] [] ? common_read+0x1c5/0x380 [ 28.695339] [] ? policydb_read+0xdba/0x2390 [ 28.701418] [] ? security_load_policy+0x264/0x9b0 [ 28.707894] [] ? sel_write_load+0x19b/0xfa0 [ 28.713898] [] ? __vfs_write+0x115/0x580 [ 28.719601] [] ? vfs_write+0x187/0x520 [ 28.725123] [] ? do_fast_syscall_32+0x2f1/0xa10 [ 28.731433] [] ? common_read+0xad/0x380 [ 28.737042] [] ? gfp_pfmemalloc_allowed+0x110/0x110 [ 28.743708] [] ? vfs_write+0x187/0x520 [ 28.749322] [] ? SyS_write+0xd9/0x1c0 [ 28.754766] [] ? do_fast_syscall_32+0x2f1/0xa10 [ 28.761077] [] ? entry_SYSENTER_compat+0x90/0xa2 [ 28.767478] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 28.774313] [] ? trace_hardirqs_on+0xd/0x10 [ 28.780350] [] ? save_stack_trace+0x16/0x20 [ 28.786314] [] ? kfree+0xfb/0x310 [ 28.791454] [] ? policydb_read+0x85e/0x2390 [ 28.797419] [] ? check_preemption_disabled+0x3b/0x200 [ 28.804248] [] kmalloc_order+0x2a/0x70 [ 28.809776] [] kmalloc_order_trace+0x1f/0x190 [ 28.815917] [] __kmalloc+0x1ae/0x310 [ 28.821321] [] ? symcmp+0x30/0x30 [ 28.826417] [] str_read+0x39/0x150 [ 28.831664] [] common_read+0x265/0x380 [ 28.837209] [] ? class_read+0x940/0x940 [ 28.842815] [] ? policydb_read+0x85e/0x2390 [ 28.848766] [] ? kfree+0xfb/0x310 [ 28.853847] [] ? class_read+0x940/0x940 [ 28.859503] [] policydb_read+0xdba/0x2390 [ 28.865304] [] ? trace_hardirqs_on+0x10/0x10 [ 28.871346] [] ? string_to_av_perm+0x90/0x90 [ 28.877384] [] ? debug_lockdep_rcu_enabled+0x77/0x90 [ 28.884121] [] ? check_preemption_disabled+0x3b/0x200 [ 28.890959] [] ? kasan_unpoison_shadow+0x35/0x50 [ 28.897366] [] ? kasan_kmalloc+0xaf/0xc0 [ 28.903061] [] ? kmem_cache_alloc_trace+0x117/0x2e0 [ 28.909808] [] ? security_load_policy+0x137/0x9b0 [ 28.916299] [] security_load_policy+0x264/0x9b0 [ 28.922595] [] ? security_get_bools+0x690/0x690 [ 28.928906] [] ? rcu_read_lock_sched_held+0x103/0x120 [ 28.935876] [] ? __alloc_pages_nodemask+0x11df/0x1bd0 [ 28.942752] [] ? trace_hardirqs_on+0x10/0x10 [ 28.948802] [] ? gfp_pfmemalloc_allowed+0x110/0x110 [ 28.955569] [] ? vmap_page_range_noflush+0x512/0x770 [ 28.962404] [] ? alloc_vmap_area.isra.8+0x8d0/0x8d0 [ 28.969053] [] ? kasan_unpoison_shadow+0x35/0x50 [ 28.975453] [] ? debug_lockdep_rcu_enabled+0x77/0x90 [ 28.982202] [] ? check_stack_object+0x110/0x150 [ 28.988503] [] ? __check_object_size+0x248/0x38e [ 28.994896] [] sel_write_load+0x19b/0xfa0 [ 29.000676] [] ? __alloc_pages_nodemask+0x11df/0x1bd0 [ 29.007496] [] ? sel_read_bool+0x240/0x240 [ 29.013504] [] ? trace_hardirqs_on+0x10/0x10 [ 29.019640] [] __vfs_write+0x115/0x580 [ 29.025270] [] ? sel_read_bool+0x240/0x240 [ 29.031147] [] ? __vfs_read+0x560/0x560 [ 29.036900] [] ? _raw_spin_unlock+0x2c/0x50 [ 29.042867] [] ? check_preemption_disabled+0x3b/0x200 [ 29.049702] [] ? rcu_read_lock_sched_held+0x103/0x120 [ 29.056537] [] ? rcu_sync_lockdep_assert+0x73/0xb0 [ 29.063102] [] ? __sb_start_write+0x161/0x300 [ 29.069229] [] vfs_write+0x187/0x520 [ 29.074571] [] SyS_write+0xd9/0x1c0 [ 29.079826] [] ? SyS_read+0x1c0/0x1c0 [ 29.085396] [] ? do_fast_syscall_32+0xcf/0xa10 [ 29.091609] [] ? SyS_read+0x1c0/0x1c0 [ 29.097048] [] do_fast_syscall_32+0x2f1/0xa10 [ 29.103176] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 29.109824] [] entry_SYSENTER_compat+0x90/0xa2 [ 29.116462] Kernel Offset: disabled [ 29.120098] Rebooting in 86400 seconds..