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 'ci-android-49-kasan-gce-6,10.128.0.13' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 42.787622] ------------[ cut here ]------------ [ 42.788344] WARNING: CPU: 0 PID: 3245 at mm/page_alloc.c:3548 __alloc_pages_slowpath+0x116d/0x1dc0 [ 42.789545] Kernel panic - not syncing: panic_on_warn set ... [ 42.789545] [ 42.790511] CPU: 0 PID: 3245 Comm: syzkaller470508 Not tainted 4.9.56-g5c73594 #66 [ 42.791517] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 42.792734] ffff8801cfbb71f0 ffffffff81d93999 ffffffff83a46b40 ffff8801cfbb72c8 [ 42.793873] ffffffff83aa3b00 ffffffff8145255d 0000000000000009 ffff8801cfbb72b8 [ 42.795006] ffffffff8142ec41 0000000041b58ab3 ffffffff841858d8 ffffffff8142ea85 [ 42.796142] Call Trace: [ 42.796513] [] dump_stack+0xc1/0x128 [ 42.797232] [] ? __alloc_pages_slowpath+0x116d/0x1dc0 [ 42.798133] [] panic+0x1bc/0x3a8 [ 42.798798] [] ? percpu_up_read_preempt_enable.constprop.54+0xd7/0xd7 [ 42.799888] [] ? load_image_and_restore+0xf9/0xf9 [ 42.800741] [] ? __alloc_pages_slowpath+0x116d/0x1dc0 [ 42.801638] [] __warn+0x1c4/0x1e0 [ 42.802327] [] warn_slowpath_null+0x2c/0x40 [ 42.803126] [] __alloc_pages_slowpath+0x116d/0x1dc0 [ 42.804002] [] ? trace_hardirqs_on+0xd/0x10 [ 42.804788] [] ? __local_bh_enable_ip+0x6a/0xd0 [ 42.805622] [] ? dst_release+0x71/0xd0 [ 42.806387] [] ? ip6_pol_route+0xb30/0x1c90 [ 42.807176] [] ? gfp_pfmemalloc_allowed+0x110/0x110 [ 42.808063] [] ? get_page_from_freelist+0xd19/0x1a00 [ 42.814784] [] ? fib6_get_table+0x1c0/0x340 [ 42.820719] [] ? __might_sleep+0x95/0x1a0 [ 42.826484] [] __alloc_pages_nodemask+0x33b/0x6b0 [ 42.832941] [] ? __ipv6_dev_get_saddr+0x26f/0x4d0 [ 42.839399] [] ? __alloc_pages_slowpath+0x1dc0/0x1dc0 [ 42.846204] [] ? _raw_read_unlock_bh+0x30/0x40 [ 42.852400] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 42.859375] [] kmalloc_order+0x2a/0x70 [ 42.864877] [] kmalloc_order_trace+0x1f/0x190 [ 42.870985] [] __kmalloc+0x19d/0x310 [ 42.876314] [] ip6_setup_cork+0x194/0x1200 [ 42.882165] [] ? xfrm_lookup+0x400/0xbf0 [ 42.887841] [] ip6_make_skb+0x1b8/0x440 [ 42.893432] [] ? ip6_dst_lookup_tail+0x3aa/0x1660 [ 42.899889] [] ? ip6_dst_lookup_tail+0x438/0x1660 [ 42.906345] [] ? ip_reply_glue_bits+0xb0/0xb0 [ 42.912451] [] ? ip6_push_pending_frames+0xe0/0xe0 [ 42.918995] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 42.925970] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 42.932947] [] ? xfrm_lookup_route+0x4f/0x1a0 [ 42.939058] [] ? ip6_dst_hoplimit+0xa6/0x380 [ 42.945081] [] ? ip6_dst_hoplimit+0x1d3/0x380 [ 42.951189] [] udpv6_sendmsg+0x1b1d/0x2540 [ 42.957037] [] ? ip_reply_glue_bits+0xb0/0xb0 [ 42.963145] [] ? udp_v6_rehash+0xa0/0xa0 [ 42.968822] [] ? udp_seq_next+0x80/0x80 [ 42.974414] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 42.981395] [] ? sock_has_perm+0x1c2/0x3e0 [ 42.987250] [] ? ip6_datagram_release_cb+0x87/0x470 [ 42.993882] [] ? release_sock+0x20/0x1c0 [ 42.999566] [] ? ip6_datagram_release_cb+0x2b1/0x470 [ 43.006287] [] ? _raw_spin_unlock_bh+0x30/0x40 [ 43.012484] [] ? release_sock+0x14c/0x1c0 [ 43.018253] [] inet_sendmsg+0x2bc/0x4c0 [ 43.023841] [] ? inet_sendmsg+0x73/0x4c0 [ 43.029514] [] ? inet_recvmsg+0x4c0/0x4c0 [ 43.035277] [] sock_sendmsg+0xca/0x110 [ 43.040778] [] SYSC_sendto+0x2c8/0x340 [ 43.046277] [] ? SYSC_connect+0x310/0x310 [ 43.052048] [] ? __pmd_alloc+0x410/0x410 [ 43.057902] [] ? selinux_netlbl_sock_rcv_skb+0x470/0x470 [ 43.064972] [] ? __do_page_fault+0x61a/0xd70 [ 43.070995] [] ? __do_page_fault+0x3c6/0xd70 [ 43.077017] [] ? SyS_setsockopt+0x17f/0x250 [ 43.082954] [] ? mm_fault_error+0x2c0/0x2c0 [ 43.088889] [] SyS_sendto+0x40/0x50 [ 43.094130] [] entry_SYSCALL_64_fastpath+0x23/0xc6 [ 43.101072] Dumping ftrace buffer: [ 43.104582] (ftrace buffer empty) [ 43.108260] Kernel Offset: disabled [ 43.111851] Rebooting in 86400 seconds..