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-5,10.128.0.9' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 42.757491] ------------[ cut here ]------------ [ 42.758258] WARNING: CPU: 0 PID: 3253 at mm/page_alloc.c:3548 __alloc_pages_slowpath+0x116d/0x1dc0 [ 42.759445] Kernel panic - not syncing: panic_on_warn set ... [ 42.759445] [ 42.760412] CPU: 0 PID: 3253 Comm: syzkaller673721 Not tainted 4.9.56-ged0b958 #65 [ 42.761439] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 42.762691] ffff8801c44171f0 ffffffff81d93999 ffffffff83a46b40 ffff8801c44172c8 [ 42.763820] ffffffff83aa3b00 ffffffff8145255d 0000000000000009 ffff8801c44172b8 [ 42.764954] ffffffff8142ec41 0000000041b58ab3 ffffffff841858d8 ffffffff8142ea85 [ 42.766099] Call Trace: [ 42.766473] [] dump_stack+0xc1/0x128 [ 42.767182] [] ? __alloc_pages_slowpath+0x116d/0x1dc0 [ 42.768082] [] panic+0x1bc/0x3a8 [ 42.768747] [] ? percpu_up_read_preempt_enable.constprop.54+0xd7/0xd7 [ 42.769839] [] ? load_image_and_restore+0xf9/0xf9 [ 42.770703] [] ? __alloc_pages_slowpath+0x116d/0x1dc0 [ 42.771612] [] __warn+0x1c4/0x1e0 [ 42.772295] [] warn_slowpath_null+0x2c/0x40 [ 42.773082] [] __alloc_pages_slowpath+0x116d/0x1dc0 [ 42.773958] [] ? trace_hardirqs_on+0xd/0x10 [ 42.774761] [] ? __local_bh_enable_ip+0x6a/0xd0 [ 42.775605] [] ? dst_release+0x71/0xd0 [ 42.776337] [] ? ip6_pol_route+0xb30/0x1c90 [ 42.777125] [] ? gfp_pfmemalloc_allowed+0x110/0x110 [ 42.779242] [] ? get_page_from_freelist+0xd19/0x1a00 [ 42.785957] [] ? fib6_get_table+0x1c0/0x340 [ 42.791894] [] ? __might_sleep+0x95/0x1a0 [ 42.797657] [] __alloc_pages_nodemask+0x33b/0x6b0 [ 42.804112] [] ? __ipv6_dev_get_saddr+0x26f/0x4d0 [ 42.810567] [] ? __alloc_pages_slowpath+0x1dc0/0x1dc0 [ 42.817374] [] ? _raw_read_unlock_bh+0x30/0x40 [ 42.823569] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 42.830548] [] kmalloc_order+0x2a/0x70 [ 42.836049] [] kmalloc_order_trace+0x1f/0x190 [ 42.842160] [] __kmalloc+0x19d/0x310 [ 42.847487] [] ip6_setup_cork+0x194/0x1200 [ 42.853335] [] ? xfrm_lookup+0x400/0xbf0 [ 42.859011] [] ip6_make_skb+0x1b8/0x440 [ 42.864596] [] ? ip6_dst_lookup_tail+0x3aa/0x1660 [ 42.871049] [] ? ip6_dst_lookup_tail+0x438/0x1660 [ 42.877504] [] ? ip_reply_glue_bits+0xb0/0xb0 [ 42.883610] [] ? ip6_push_pending_frames+0xe0/0xe0 [ 42.890154] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 42.897132] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 42.904107] [] ? xfrm_lookup_route+0x4f/0x1a0 [ 42.910217] [] ? ip6_dst_hoplimit+0xa6/0x380 [ 42.916238] [] ? ip6_dst_hoplimit+0x1d3/0x380 [ 42.922345] [] udpv6_sendmsg+0x1b1d/0x2540 [ 42.928193] [] ? ip_reply_glue_bits+0xb0/0xb0 [ 42.934300] [] ? udp_v6_rehash+0xa0/0xa0 [ 42.939977] [] ? udp_seq_next+0x80/0x80 [ 42.945568] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 42.952543] [] ? sock_has_perm+0x1c2/0x3e0 [ 42.958391] [] ? ip6_datagram_release_cb+0x87/0x470 [ 42.965020] [] ? release_sock+0x20/0x1c0 [ 42.970693] [] ? ip6_datagram_release_cb+0x2b1/0x470 [ 42.977416] [] ? _raw_spin_unlock_bh+0x30/0x40 [ 42.983609] [] ? release_sock+0x14c/0x1c0 [ 42.989371] [] inet_sendmsg+0x2bc/0x4c0 [ 42.994968] [] ? inet_sendmsg+0x73/0x4c0 [ 43.000645] [] ? inet_recvmsg+0x4c0/0x4c0 [ 43.006409] [] sock_sendmsg+0xca/0x110 [ 43.011910] [] SYSC_sendto+0x2c8/0x340 [ 43.017411] [] ? SYSC_connect+0x310/0x310 [ 43.023172] [] ? __pmd_alloc+0x410/0x410 [ 43.028852] [] ? selinux_netlbl_sock_rcv_skb+0x470/0x470 [ 43.035916] [] ? __do_page_fault+0x61a/0xd70 [ 43.041938] [] ? __do_page_fault+0x3c6/0xd70 [ 43.047960] [] ? SyS_setsockopt+0x17f/0x250 [ 43.053895] [] ? mm_fault_error+0x2c0/0x2c0 [ 43.059829] [] SyS_sendto+0x40/0x50 [ 43.065077] [] entry_SYSCALL_64_fastpath+0x23/0xc6 [ 43.071968] Dumping ftrace buffer: [ 43.075475] (ftrace buffer empty) [ 43.079152] Kernel Offset: disabled [ 43.082743] Rebooting in 86400 seconds..