[....] Starting enhanced syslogd: rsyslogd[ 14.762871] audit: type=1400 audit(1571769174.294:4): avc: denied { syslog } for pid=1915 comm="rsyslogd" capability=34 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=capability2 permissive=1 [?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. Starting mcstransd: [....] 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 Warning: Permanently added '10.128.0.142' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 22.832942] ------------[ cut here ]------------ [ 22.842740] WARNING: CPU: 0 PID: 2061 at mm/page_alloc.c:3069 __alloc_pages_nodemask+0x11d7/0x14b0() [ 22.853361] Kernel panic - not syncing: panic_on_warn set ... [ 22.853361] [ 22.862132] CPU: 0 PID: 2061 Comm: syz-executor752 Not tainted 4.4.174+ #4 [ 22.871596] 0000000000000000 14ffdbad5228442c ffff8800b6c67798 ffffffff81aad1a1 [ 22.882408] 0000000000000000 ffffffff82835ee0 ffffffff82885260 0000000000000bfd [ 22.890775] ffffffff813d12d7 ffff8800b6c67878 ffffffff813a48c2 0000000041b58ab3 [ 22.899139] Call Trace: [ 22.901724] [] dump_stack+0xc1/0x120 [ 22.907171] [] ? __alloc_pages_nodemask+0x11d7/0x14b0 [ 22.914182] [] panic+0x1b9/0x37b [ 22.920965] [] ? add_taint.cold+0x16/0x16 [ 22.927940] [] ? warn_slowpath_common.cold+0x5/0x20 [ 22.937103] [] warn_slowpath_common.cold+0x20/0x20 [ 22.943808] [] warn_slowpath_null+0x2a/0x30 [ 22.949913] [] __alloc_pages_nodemask+0x11d7/0x14b0 [ 22.956564] [] ? kasan_kmalloc.part.0+0xc6/0xf0 [ 22.962871] [] ? save_stack_trace+0x26/0x50 [ 22.968818] [] ? kasan_kmalloc.part.0+0x62/0xf0 [ 22.975135] [] ? kasan_kmalloc+0xb7/0xd0 [ 22.980828] [] ? __kmalloc+0x141/0x330 [ 22.986451] [] ? input_alloc_absinfo+0x61/0xe0 [ 22.992848] [] ? uinput_write+0x51f/0xf60 [ 22.998891] [] ? SyS_write+0xdc/0x1c0 [ 23.004347] [] ? entry_SYSCALL_64_fastpath+0x1e/0x9a [ 23.011796] [] ? __alloc_pages_direct_compact+0x220/0x220 [ 23.018977] [] ? trace_hardirqs_on+0x10/0x10 [ 23.025042] [] ? mark_held_locks+0xb1/0x100 [ 23.033082] [] ? trace_hardirqs_on_caller+0x385/0x5a0 [ 23.040012] [] alloc_kmem_pages+0x12/0x20 [ 23.045811] [] kmalloc_order+0x21/0x70 [ 23.051690] [] kmalloc_order_trace+0x1f/0x1a0 [ 23.058001] [] __kmalloc+0x1c2/0x330 [ 23.063696] [] input_mt_init_slots+0xcb/0x400 [ 23.069924] [] uinput_write+0xcb5/0xf60 [ 23.076059] [] ? uinput_ioctl+0x60/0x60 [ 23.082323] [] ? trace_hardirqs_on+0x10/0x10 [ 23.088510] [] __vfs_write+0x116/0x3d0 [ 23.095772] [] ? uinput_ioctl+0x60/0x60 [ 23.104751] [] ? __vfs_read+0x3c0/0x3c0 [ 23.110493] [] ? debug_lockdep_rcu_enabled+0x71/0xa0 [ 23.118986] [] ? avc_policy_seqno+0x9/0x20 [ 23.125064] [] ? selinux_file_permission+0x2f5/0x450 [ 23.132759] [] ? security_file_permission+0x91/0x1e0 [ 23.140958] [] ? rw_verify_area+0x103/0x2f0 [ 23.147625] [] vfs_write+0x182/0x4e0 [ 23.152993] [] SyS_write+0xdc/0x1c0 [ 23.158566] [] ? SyS_read+0x1c0/0x1c0 [ 23.164429] [] ? lockdep_sys_exit_thunk+0x12/0x14 [ 23.172266] [] entry_SYSCALL_64_fastpath+0x1e/0x9a [ 23.181939] Kernel Offset: disabled [ 23.185812] Rebooting in 86400 seconds..