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-7,10.128.0.4' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 31.230106] ------------[ cut here ]------------ [ 31.230868] WARNING: CPU: 0 PID: 3238 at mm/page_alloc.c:3548 __alloc_pages_slowpath+0x116d/0x1dc0 [ 31.232135] Kernel panic - not syncing: panic_on_warn set ... [ 31.232135] [ 31.233222] CPU: 0 PID: 3238 Comm: syzkaller756954 Not tainted 4.9.56-g5c73594 #66 [ 31.234243] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.235501] ffff8801cb29f1f0 ffffffff81d93999 ffffffff83a46b40 ffff8801cb29f2c8 [ 31.236630] ffffffff83aa3b00 ffffffff8145255d 0000000000000009 ffff8801cb29f2b8 [ 31.237752] ffffffff8142ec41 0000000041b58ab3 ffffffff841858d8 ffffffff8142ea85 [ 31.238881] Call Trace: [ 31.239246] [] dump_stack+0xc1/0x128 [ 31.239954] [] ? __alloc_pages_slowpath+0x116d/0x1dc0 [ 31.240852] [] panic+0x1bc/0x3a8 [ 31.241515] [] ? percpu_up_read_preempt_enable.constprop.54+0xd7/0xd7 [ 31.242633] [] ? load_image_and_restore+0xf9/0xf9 [ 31.243486] [] ? __alloc_pages_slowpath+0x116d/0x1dc0 [ 31.244398] [] __warn+0x1c4/0x1e0 [ 31.245071] [] warn_slowpath_null+0x2c/0x40 [ 31.245855] [] __alloc_pages_slowpath+0x116d/0x1dc0 [ 31.246746] [] ? trace_hardirqs_on+0xd/0x10 [ 31.247542] [] ? __local_bh_enable_ip+0x6a/0xd0 [ 31.248390] [] ? dst_release+0x71/0xd0 [ 31.249124] [] ? ip6_pol_route+0xb30/0x1c90 [ 31.249911] [] ? gfp_pfmemalloc_allowed+0x110/0x110 [ 31.253454] [] ? get_page_from_freelist+0xd19/0x1a00 [ 31.260175] [] ? fib6_get_table+0x1c0/0x340 [ 31.266112] [] ? __might_sleep+0x95/0x1a0 [ 31.271874] [] __alloc_pages_nodemask+0x33b/0x6b0 [ 31.278329] [] ? __ipv6_dev_get_saddr+0x26f/0x4d0 [ 31.284783] [] ? __alloc_pages_slowpath+0x1dc0/0x1dc0 [ 31.291587] [] ? _raw_read_unlock_bh+0x30/0x40 [ 31.297784] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 31.304764] [] kmalloc_order+0x2a/0x70 [ 31.310263] [] kmalloc_order_trace+0x1f/0x190 [ 31.316371] [] __kmalloc+0x19d/0x310 [ 31.321698] [] ip6_setup_cork+0x194/0x1200 [ 31.327544] [] ? xfrm_lookup+0x400/0xbf0 [ 31.333219] [] ip6_make_skb+0x1b8/0x440 [ 31.338807] [] ? ip6_dst_lookup_tail+0x3aa/0x1660 [ 31.345262] [] ? ip6_dst_lookup_tail+0x438/0x1660 [ 31.351716] [] ? ip_reply_glue_bits+0xb0/0xb0 [ 31.357826] [] ? ip6_push_pending_frames+0xe0/0xe0 [ 31.364370] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 31.371349] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 31.378324] [] ? xfrm_lookup_route+0x4f/0x1a0 [ 31.384436] [] ? ip6_dst_hoplimit+0xa6/0x380 [ 31.390456] [] ? ip6_dst_hoplimit+0x1d3/0x380 [ 31.396566] [] udpv6_sendmsg+0x1b1d/0x2540 [ 31.402415] [] ? ip_reply_glue_bits+0xb0/0xb0 [ 31.408526] [] ? udp_v6_rehash+0xa0/0xa0 [ 31.414203] [] ? udp_seq_next+0x80/0x80 [ 31.419790] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 31.426766] [] ? sock_has_perm+0x1c2/0x3e0 [ 31.432617] [] ? ip6_datagram_release_cb+0x87/0x470 [ 31.439246] [] ? release_sock+0x20/0x1c0 [ 31.444921] [] ? ip6_datagram_release_cb+0x2b1/0x470 [ 31.451637] [] ? _raw_spin_unlock_bh+0x30/0x40 [ 31.457830] [] ? release_sock+0x14c/0x1c0 [ 31.463590] [] inet_sendmsg+0x2bc/0x4c0 [ 31.469175] [] ? inet_sendmsg+0x73/0x4c0 [ 31.474850] [] ? inet_recvmsg+0x4c0/0x4c0 [ 31.480610] [] sock_sendmsg+0xca/0x110 [ 31.486110] [] SYSC_sendto+0x2c8/0x340 [ 31.491610] [] ? SYSC_connect+0x310/0x310 [ 31.497369] [] ? __pmd_alloc+0x410/0x410 [ 31.503043] [] ? selinux_netlbl_sock_rcv_skb+0x470/0x470 [ 31.510107] [] ? __do_page_fault+0x61a/0xd70 [ 31.516130] [] ? __do_page_fault+0x3c6/0xd70 [ 31.522150] [] ? SyS_setsockopt+0x17f/0x250 [ 31.528084] [] ? mm_fault_error+0x2c0/0x2c0 [ 31.534017] [] SyS_sendto+0x40/0x50 [ 31.539260] [] entry_SYSCALL_64_fastpath+0x23/0xc6 [ 31.545843] Dumping ftrace buffer: [ 31.549346] (ftrace buffer empty) [ 31.553022] Kernel Offset: disabled [ 31.556616] Rebooting in 86400 seconds..