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-5,10.128.15.215' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 32.588192] ------------[ cut here ]------------ [ 32.588924] WARNING: CPU: 0 PID: 3241 at mm/page_alloc.c:3548 __alloc_pages_slowpath+0x116d/0x1dc0 [ 32.590146] Kernel panic - not syncing: panic_on_warn set ... [ 32.590146] [ 32.591147] CPU: 0 PID: 3241 Comm: syzkaller861738 Not tainted 4.9.56-ged0b958 #65 [ 32.592169] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.593463] ffff8801c78a71f0 ffffffff81d93999 ffffffff83a46b40 ffff8801c78a72c8 [ 32.594621] ffffffff83aa3b00 ffffffff8145255d 0000000000000009 ffff8801c78a72b8 [ 32.595766] ffffffff8142ec41 0000000041b58ab3 ffffffff841858d8 ffffffff8142ea85 [ 32.596900] Call Trace: [ 32.597256] [] dump_stack+0xc1/0x128 [ 32.597965] [] ? __alloc_pages_slowpath+0x116d/0x1dc0 [ 32.598874] [] panic+0x1bc/0x3a8 [ 32.599540] [] ? percpu_up_read_preempt_enable.constprop.54+0xd7/0xd7 [ 32.600688] [] ? load_image_and_restore+0xf9/0xf9 [ 32.601559] [] ? __alloc_pages_slowpath+0x116d/0x1dc0 [ 32.602472] [] __warn+0x1c4/0x1e0 [ 32.603157] [] warn_slowpath_null+0x2c/0x40 [ 32.603941] [] __alloc_pages_slowpath+0x116d/0x1dc0 [ 32.604839] [] ? trace_hardirqs_on+0xd/0x10 [ 32.605624] [] ? __local_bh_enable_ip+0x6a/0xd0 [ 32.606459] [] ? dst_release+0x71/0xd0 [ 32.607201] [] ? ip6_pol_route+0xb30/0x1c90 [ 32.607990] [] ? gfp_pfmemalloc_allowed+0x110/0x110 [ 32.610484] [] ? get_page_from_freelist+0xd19/0x1a00 [ 32.617214] [] ? fib6_get_table+0x1c0/0x340 [ 32.623153] [] ? __might_sleep+0x95/0x1a0 [ 32.628917] [] __alloc_pages_nodemask+0x33b/0x6b0 [ 32.635376] [] ? __ipv6_dev_get_saddr+0x26f/0x4d0 [ 32.641835] [] ? __alloc_pages_slowpath+0x1dc0/0x1dc0 [ 32.648647] [] ? _raw_read_unlock_bh+0x30/0x40 [ 32.654846] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 32.661826] [] kmalloc_order+0x2a/0x70 [ 32.667330] [] kmalloc_order_trace+0x1f/0x190 [ 32.673447] [] __kmalloc+0x19d/0x310 [ 32.678777] [] ip6_setup_cork+0x194/0x1200 [ 32.684627] [] ? xfrm_lookup+0x400/0xbf0 [ 32.690304] [] ip6_make_skb+0x1b8/0x440 [ 32.695896] [] ? ip6_dst_lookup_tail+0x3aa/0x1660 [ 32.702355] [] ? ip6_dst_lookup_tail+0x438/0x1660 [ 32.708819] [] ? ip_reply_glue_bits+0xb0/0xb0 [ 32.714929] [] ? ip6_push_pending_frames+0xe0/0xe0 [ 32.721473] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 32.728452] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 32.735519] [] ? xfrm_lookup_route+0x4f/0x1a0 [ 32.741634] [] ? ip6_dst_hoplimit+0xa6/0x380 [ 32.747657] [] ? ip6_dst_hoplimit+0x1d3/0x380 [ 32.753784] [] udpv6_sendmsg+0x1b1d/0x2540 [ 32.759636] [] ? ip_reply_glue_bits+0xb0/0xb0 [ 32.765750] [] ? udp_v6_rehash+0xa0/0xa0 [ 32.771426] [] ? udp_seq_next+0x80/0x80 [ 32.777016] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 32.783994] [] ? sock_has_perm+0x1c2/0x3e0 [ 32.789844] [] ? ip6_datagram_release_cb+0x87/0x470 [ 32.796476] [] ? release_sock+0x20/0x1c0 [ 32.802152] [] ? ip6_datagram_release_cb+0x2b1/0x470 [ 32.808872] [] ? _raw_spin_unlock_bh+0x30/0x40 [ 32.815071] [] ? release_sock+0x14c/0x1c0 [ 32.820835] [] inet_sendmsg+0x2bc/0x4c0 [ 32.826425] [] ? inet_sendmsg+0x73/0x4c0 [ 32.832099] [] ? inet_recvmsg+0x4c0/0x4c0 [ 32.837863] [] sock_sendmsg+0xca/0x110 [ 32.843364] [] SYSC_sendto+0x2c8/0x340 [ 32.848865] [] ? SYSC_connect+0x310/0x310 [ 32.854644] [] ? __pmd_alloc+0x410/0x410 [ 32.860330] [] ? selinux_netlbl_sock_rcv_skb+0x470/0x470 [ 32.867397] [] ? __do_page_fault+0x61a/0xd70 [ 32.873420] [] ? __do_page_fault+0x3c6/0xd70 [ 32.879449] [] ? SyS_setsockopt+0x17f/0x250 [ 32.885388] [] ? mm_fault_error+0x2c0/0x2c0 [ 32.891323] [] SyS_sendto+0x40/0x50 [ 32.896567] [] entry_SYSCALL_64_fastpath+0x23/0xc6 [ 32.903491] Dumping ftrace buffer: [ 32.907003] (ftrace buffer empty) [ 32.910680] Kernel Offset: disabled [ 32.915454] Rebooting in 86400 seconds..