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-5,10.128.15.209' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 46.261626] ------------[ cut here ]------------ [ 46.262371] WARNING: CPU: 0 PID: 3252 at mm/page_alloc.c:3548 __alloc_pages_slowpath+0x116d/0x1dc0 [ 46.263627] Kernel panic - not syncing: panic_on_warn set ... [ 46.263627] [ 46.264640] CPU: 0 PID: 3252 Comm: syzkaller321996 Not tainted 4.9.56-g5c73594 #66 [ 46.265663] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 46.266908] ffff8801cb9af1f0 ffffffff81d93999 ffffffff83a46b40 ffff8801cb9af2c8 [ 46.268112] ffffffff83aa3b00 ffffffff8145255d 0000000000000009 ffff8801cb9af2b8 [ 46.269250] ffffffff8142ec41 0000000041b58ab3 ffffffff841858d8 ffffffff8142ea85 [ 46.270408] Call Trace: [ 46.270811] [] dump_stack+0xc1/0x128 [ 46.271551] [] ? __alloc_pages_slowpath+0x116d/0x1dc0 [ 46.272460] [] panic+0x1bc/0x3a8 [ 46.273124] [] ? percpu_up_read_preempt_enable.constprop.54+0xd7/0xd7 [ 46.274210] [] ? load_image_and_restore+0xf9/0xf9 [ 46.275061] [] ? __alloc_pages_slowpath+0x116d/0x1dc0 [ 46.275957] [] __warn+0x1c4/0x1e0 [ 46.276644] [] warn_slowpath_null+0x2c/0x40 [ 46.277430] [] __alloc_pages_slowpath+0x116d/0x1dc0 [ 46.278328] [] ? trace_hardirqs_on+0xd/0x10 [ 46.279173] [] ? __local_bh_enable_ip+0x6a/0xd0 [ 46.280052] [] ? dst_release+0x71/0xd0 [ 46.280867] [] ? ip6_pol_route+0xb30/0x1c90 [ 46.281651] [] ? gfp_pfmemalloc_allowed+0x110/0x110 [ 46.282536] [] ? get_page_from_freelist+0xd19/0x1a00 [ 46.289267] [] ? fib6_get_table+0x1c0/0x340 [ 46.295216] [] ? __might_sleep+0x95/0x1a0 [ 46.300987] [] __alloc_pages_nodemask+0x33b/0x6b0 [ 46.307448] [] ? __ipv6_dev_get_saddr+0x26f/0x4d0 [ 46.313908] [] ? __alloc_pages_slowpath+0x1dc0/0x1dc0 [ 46.320715] [] ? _raw_read_unlock_bh+0x30/0x40 [ 46.326926] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 46.333914] [] kmalloc_order+0x2a/0x70 [ 46.339417] [] kmalloc_order_trace+0x1f/0x190 [ 46.345526] [] __kmalloc+0x19d/0x310 [ 46.350864] [] ip6_setup_cork+0x194/0x1200 [ 46.356712] [] ? xfrm_lookup+0x400/0xbf0 [ 46.362391] [] ip6_make_skb+0x1b8/0x440 [ 46.367978] [] ? ip6_dst_lookup_tail+0x3aa/0x1660 [ 46.374435] [] ? ip6_dst_lookup_tail+0x438/0x1660 [ 46.380907] [] ? ip_reply_glue_bits+0xb0/0xb0 [ 46.387019] [] ? ip6_push_pending_frames+0xe0/0xe0 [ 46.393570] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 46.400552] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 46.407538] [] ? xfrm_lookup_route+0x4f/0x1a0 [ 46.413650] [] ? ip6_dst_hoplimit+0xa6/0x380 [ 46.419673] [] ? ip6_dst_hoplimit+0x1d3/0x380 [ 46.425785] [] udpv6_sendmsg+0x1b1d/0x2540 [ 46.431643] [] ? ip_reply_glue_bits+0xb0/0xb0 [ 46.437770] [] ? udp_v6_rehash+0xa0/0xa0 [ 46.443458] [] ? udp_seq_next+0x80/0x80 [ 46.449065] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 46.456050] [] ? sock_has_perm+0x1c2/0x3e0 [ 46.461902] [] ? ip6_datagram_release_cb+0x87/0x470 [ 46.468531] [] ? release_sock+0x20/0x1c0 [ 46.474205] [] ? ip6_datagram_release_cb+0x2b1/0x470 [ 46.480923] [] ? _raw_spin_unlock_bh+0x30/0x40 [ 46.487118] [] ? release_sock+0x14c/0x1c0 [ 46.492884] [] inet_sendmsg+0x2bc/0x4c0 [ 46.498471] [] ? inet_sendmsg+0x73/0x4c0 [ 46.504145] [] ? inet_recvmsg+0x4c0/0x4c0 [ 46.509908] [] sock_sendmsg+0xca/0x110 [ 46.515409] [] SYSC_sendto+0x2c8/0x340 [ 46.520917] [] ? SYSC_connect+0x310/0x310 [ 46.526715] [] ? __pmd_alloc+0x410/0x410 [ 46.532408] [] ? selinux_netlbl_sock_rcv_skb+0x470/0x470 [ 46.539496] [] ? __do_page_fault+0x61a/0xd70 [ 46.545521] [] ? __do_page_fault+0x3c6/0xd70 [ 46.551549] [] ? SyS_setsockopt+0x17f/0x250 [ 46.557492] [] ? mm_fault_error+0x2c0/0x2c0 [ 46.563429] [] SyS_sendto+0x40/0x50 [ 46.568674] [] entry_SYSCALL_64_fastpath+0x23/0xc6 [ 46.575676] Dumping ftrace buffer: [ 46.579182] (ftrace buffer empty) [ 46.582858] Kernel Offset: disabled [ 46.586452] Rebooting in 86400 seconds..