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-5,10.128.0.7' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 59.074264] ------------[ cut here ]------------ [ 59.074985] WARNING: CPU: 0 PID: 3263 at mm/page_alloc.c:3548 __alloc_pages_slowpath+0x116d/0x1dc0 [ 59.076181] Kernel panic - not syncing: panic_on_warn set ... [ 59.076181] [ 59.077175] CPU: 0 PID: 3263 Comm: syzkaller411799 Not tainted 4.9.56-g5c73594 #66 [ 59.078179] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.079444] ffff8801c76df1f0 ffffffff81d93999 ffffffff83a46b40 ffff8801c76df2c8 [ 59.080588] ffffffff83aa3b00 ffffffff8145255d 0000000000000009 ffff8801c76df2b8 [ 59.081715] ffffffff8142ec41 0000000041b58ab3 ffffffff841858d8 ffffffff8142ea85 [ 59.082839] Call Trace: [ 59.083228] [] dump_stack+0xc1/0x128 [ 59.083934] [] ? __alloc_pages_slowpath+0x116d/0x1dc0 [ 59.084889] [] panic+0x1bc/0x3a8 [ 59.085552] [] ? percpu_up_read_preempt_enable.constprop.54+0xd7/0xd7 [ 59.086626] [] ? load_image_and_restore+0xf9/0xf9 [ 59.087477] [] ? __alloc_pages_slowpath+0x116d/0x1dc0 [ 59.088372] [] __warn+0x1c4/0x1e0 [ 59.089081] [] warn_slowpath_null+0x2c/0x40 [ 59.089868] [] __alloc_pages_slowpath+0x116d/0x1dc0 [ 59.090757] [] ? trace_hardirqs_on+0xd/0x10 [ 59.091576] [] ? __local_bh_enable_ip+0x6a/0xd0 [ 59.092407] [] ? dst_release+0x71/0xd0 [ 59.093154] [] ? ip6_pol_route+0xb30/0x1c90 [ 59.093942] [] ? gfp_pfmemalloc_allowed+0x110/0x110 [ 59.094827] [] ? get_page_from_freelist+0xd19/0x1a00 [ 59.101539] [] ? fib6_get_table+0x1c0/0x340 [ 59.107476] [] ? __might_sleep+0x95/0x1a0 [ 59.113234] [] __alloc_pages_nodemask+0x33b/0x6b0 [ 59.119688] [] ? __ipv6_dev_get_saddr+0x26f/0x4d0 [ 59.126141] [] ? __alloc_pages_slowpath+0x1dc0/0x1dc0 [ 59.132942] [] ? _raw_read_unlock_bh+0x30/0x40 [ 59.139137] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 59.146111] [] kmalloc_order+0x2a/0x70 [ 59.151608] [] kmalloc_order_trace+0x1f/0x190 [ 59.157715] [] __kmalloc+0x19d/0x310 [ 59.163044] [] ip6_setup_cork+0x194/0x1200 [ 59.168892] [] ? xfrm_lookup+0x400/0xbf0 [ 59.174565] [] ip6_make_skb+0x1b8/0x440 [ 59.180150] [] ? ip6_dst_lookup_tail+0x3aa/0x1660 [ 59.186604] [] ? ip6_dst_lookup_tail+0x438/0x1660 [ 59.193058] [] ? ip_reply_glue_bits+0xb0/0xb0 [ 59.199164] [] ? ip6_push_pending_frames+0xe0/0xe0 [ 59.205705] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 59.212689] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 59.219663] [] ? xfrm_lookup_route+0x4f/0x1a0 [ 59.225770] [] ? ip6_dst_hoplimit+0xa6/0x380 [ 59.231788] [] ? ip6_dst_hoplimit+0x1d3/0x380 [ 59.237895] [] udpv6_sendmsg+0x1b1d/0x2540 [ 59.243740] [] ? ip_reply_glue_bits+0xb0/0xb0 [ 59.249846] [] ? udp_v6_rehash+0xa0/0xa0 [ 59.255523] [] ? udp_seq_next+0x80/0x80 [ 59.261108] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 59.268083] [] ? sock_has_perm+0x1c2/0x3e0 [ 59.273931] [] ? ip6_datagram_release_cb+0x87/0x470 [ 59.280557] [] ? release_sock+0x20/0x1c0 [ 59.286231] [] ? ip6_datagram_release_cb+0x2b1/0x470 [ 59.292945] [] ? _raw_spin_unlock_bh+0x30/0x40 [ 59.299136] [] ? release_sock+0x14c/0x1c0 [ 59.304897] [] inet_sendmsg+0x2bc/0x4c0 [ 59.310481] [] ? inet_sendmsg+0x73/0x4c0 [ 59.316153] [] ? inet_recvmsg+0x4c0/0x4c0 [ 59.321912] [] sock_sendmsg+0xca/0x110 [ 59.327413] [] SYSC_sendto+0x2c8/0x340 [ 59.332910] [] ? SYSC_connect+0x310/0x310 [ 59.338669] [] ? __pmd_alloc+0x410/0x410 [ 59.344342] [] ? selinux_netlbl_sock_rcv_skb+0x470/0x470 [ 59.351405] [] ? __do_page_fault+0x61a/0xd70 [ 59.357424] [] ? __do_page_fault+0x3c6/0xd70 [ 59.363443] [] ? SyS_setsockopt+0x17f/0x250 [ 59.369379] [] ? mm_fault_error+0x2c0/0x2c0 [ 59.375312] [] SyS_sendto+0x40/0x50 [ 59.380551] [] entry_SYSCALL_64_fastpath+0x23/0xc6 [ 59.387137] Dumping ftrace buffer: [ 59.390640] (ftrace buffer empty) [ 59.394321] Kernel Offset: disabled [ 59.397911] Rebooting in 86400 seconds..