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-5,10.128.0.62' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 61.496566] ------------[ cut here ]------------ [ 61.497384] WARNING: CPU: 1 PID: 3254 at mm/page_alloc.c:3548 __alloc_pages_slowpath+0x116d/0x1dc0 [ 61.498582] Kernel panic - not syncing: panic_on_warn set ... [ 61.498582] [ 61.499566] CPU: 1 PID: 3254 Comm: syzkaller980516 Not tainted 4.9.56-ged0b958 #65 [ 61.500572] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 61.501791] ffff8801d98571f0 ffffffff81d93999 ffffffff83a46b40 ffff8801d98572c8 [ 61.502952] ffffffff83aa3b00 ffffffff8145255d 0000000000000009 ffff8801d98572b8 [ 61.504088] ffffffff8142ec41 0000000041b58ab3 ffffffff841858d8 ffffffff8142ea85 [ 61.505236] Call Trace: [ 61.505590] [] dump_stack+0xc1/0x128 [ 61.506334] [] ? __alloc_pages_slowpath+0x116d/0x1dc0 [ 61.507382] [] panic+0x1bc/0x3a8 [ 61.508112] [] ? percpu_up_read_preempt_enable.constprop.54+0xd7/0xd7 [ 61.509354] [] ? load_image_and_restore+0xf9/0xf9 [ 61.510241] [] ? __alloc_pages_slowpath+0x116d/0x1dc0 [ 61.511140] [] __warn+0x1c4/0x1e0 [ 61.511814] [] warn_slowpath_null+0x2c/0x40 [ 61.512623] [] __alloc_pages_slowpath+0x116d/0x1dc0 [ 61.513519] [] ? trace_hardirqs_on+0xd/0x10 [ 61.514325] [] ? __local_bh_enable_ip+0x6a/0xd0 [ 61.515168] [] ? dst_release+0x71/0xd0 [ 61.515985] [] ? ip6_pol_route+0xb30/0x1c90 [ 61.517846] [] ? gfp_pfmemalloc_allowed+0x110/0x110 [ 61.524477] [] ? get_page_from_freelist+0xd19/0x1a00 [ 61.531198] [] ? fib6_get_table+0x1c0/0x340 [ 61.537138] [] ? __might_sleep+0x95/0x1a0 [ 61.542901] [] __alloc_pages_nodemask+0x33b/0x6b0 [ 61.549361] [] ? __ipv6_dev_get_saddr+0x26f/0x4d0 [ 61.555818] [] ? __alloc_pages_slowpath+0x1dc0/0x1dc0 [ 61.562622] [] ? _raw_read_unlock_bh+0x30/0x40 [ 61.568820] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 61.575801] [] kmalloc_order+0x2a/0x70 [ 61.581301] [] kmalloc_order_trace+0x1f/0x190 [ 61.587411] [] __kmalloc+0x19d/0x310 [ 61.592737] [] ip6_setup_cork+0x194/0x1200 [ 61.598585] [] ? xfrm_lookup+0x400/0xbf0 [ 61.604259] [] ip6_make_skb+0x1b8/0x440 [ 61.609846] [] ? ip6_dst_lookup_tail+0x3aa/0x1660 [ 61.616301] [] ? ip6_dst_lookup_tail+0x438/0x1660 [ 61.622757] [] ? ip_reply_glue_bits+0xb0/0xb0 [ 61.628866] [] ? ip6_push_pending_frames+0xe0/0xe0 [ 61.635407] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 61.642383] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 61.649359] [] ? xfrm_lookup_route+0x4f/0x1a0 [ 61.655468] [] ? ip6_dst_hoplimit+0xa6/0x380 [ 61.661491] [] ? ip6_dst_hoplimit+0x1d3/0x380 [ 61.667600] [] udpv6_sendmsg+0x1b1d/0x2540 [ 61.673448] [] ? ip_reply_glue_bits+0xb0/0xb0 [ 61.679554] [] ? udp_v6_rehash+0xa0/0xa0 [ 61.685228] [] ? udp_seq_next+0x80/0x80 [ 61.690815] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 61.697791] [] ? sock_has_perm+0x1c2/0x3e0 [ 61.703640] [] ? ip6_datagram_release_cb+0x87/0x470 [ 61.710269] [] ? release_sock+0x20/0x1c0 [ 61.715945] [] ? ip6_datagram_release_cb+0x2b1/0x470 [ 61.722660] [] ? _raw_spin_unlock_bh+0x30/0x40 [ 61.728855] [] ? release_sock+0x14c/0x1c0 [ 61.734617] [] inet_sendmsg+0x2bc/0x4c0 [ 61.740201] [] ? inet_sendmsg+0x73/0x4c0 [ 61.745874] [] ? inet_recvmsg+0x4c0/0x4c0 [ 61.751635] [] sock_sendmsg+0xca/0x110 [ 61.757136] [] SYSC_sendto+0x2c8/0x340 [ 61.762637] [] ? SYSC_connect+0x310/0x310 [ 61.768399] [] ? __pmd_alloc+0x410/0x410 [ 61.774075] [] ? selinux_netlbl_sock_rcv_skb+0x470/0x470 [ 61.781141] [] ? __do_page_fault+0x61a/0xd70 [ 61.787160] [] ? __do_page_fault+0x3c6/0xd70 [ 61.793182] [] ? SyS_setsockopt+0x17f/0x250 [ 61.799118] [] ? mm_fault_error+0x2c0/0x2c0 [ 61.805054] [] SyS_sendto+0x40/0x50 [ 61.810293] [] entry_SYSCALL_64_fastpath+0x23/0xc6 [ 61.816873] Dumping ftrace buffer: [ 61.820378] (ftrace buffer empty) [ 61.824053] Kernel Offset: disabled [ 61.827642] Rebooting in 86400 seconds..