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-3,10.128.0.55' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 43.004136] ------------[ cut here ]------------ [ 43.004890] WARNING: CPU: 1 PID: 3247 at mm/page_alloc.c:3548 __alloc_pages_slowpath+0x116d/0x1dc0 [ 43.006183] Kernel panic - not syncing: panic_on_warn set ... [ 43.006183] [ 43.007166] CPU: 1 PID: 3247 Comm: syzkaller422946 Not tainted 4.9.56-ged0b958 #65 [ 43.008187] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 43.009614] ffff8801cd2ff1f0 ffffffff81d93999 ffffffff83a46b40 ffff8801cd2ff2c8 [ 43.010794] ffffffff83aa3b00 ffffffff8145255d 0000000000000009 ffff8801cd2ff2b8 [ 43.011921] ffffffff8142ec41 0000000041b58ab3 ffffffff841858d8 ffffffff8142ea85 [ 43.013062] Call Trace: [ 43.013419] [] dump_stack+0xc1/0x128 [ 43.014169] [] ? __alloc_pages_slowpath+0x116d/0x1dc0 [ 43.015113] [] panic+0x1bc/0x3a8 [ 43.015825] [] ? percpu_up_read_preempt_enable.constprop.54+0xd7/0xd7 [ 43.016899] [] ? load_image_and_restore+0xf9/0xf9 [ 43.017786] [] ? __alloc_pages_slowpath+0x116d/0x1dc0 [ 43.018686] [] __warn+0x1c4/0x1e0 [ 43.019361] [] warn_slowpath_null+0x2c/0x40 [ 43.020146] [] __alloc_pages_slowpath+0x116d/0x1dc0 [ 43.021024] [] ? trace_hardirqs_on+0xd/0x10 [ 43.021809] [] ? __local_bh_enable_ip+0x6a/0xd0 [ 43.022675] [] ? dst_release+0x71/0xd0 [ 43.023421] [] ? ip6_pol_route+0xb30/0x1c90 [ 43.024220] [] ? gfp_pfmemalloc_allowed+0x110/0x110 [ 43.025837] [] ? get_page_from_freelist+0xd19/0x1a00 [ 43.032566] [] ? fib6_get_table+0x1c0/0x340 [ 43.038509] [] ? __might_sleep+0x95/0x1a0 [ 43.044278] [] __alloc_pages_nodemask+0x33b/0x6b0 [ 43.050734] [] ? __ipv6_dev_get_saddr+0x26f/0x4d0 [ 43.057199] [] ? __alloc_pages_slowpath+0x1dc0/0x1dc0 [ 43.064018] [] ? _raw_read_unlock_bh+0x30/0x40 [ 43.070217] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 43.077199] [] kmalloc_order+0x2a/0x70 [ 43.082702] [] kmalloc_order_trace+0x1f/0x190 [ 43.088812] [] __kmalloc+0x19d/0x310 [ 43.094140] [] ip6_setup_cork+0x194/0x1200 [ 43.099997] [] ? xfrm_lookup+0x400/0xbf0 [ 43.105684] [] ip6_make_skb+0x1b8/0x440 [ 43.111294] [] ? ip6_dst_lookup_tail+0x3aa/0x1660 [ 43.117753] [] ? ip6_dst_lookup_tail+0x438/0x1660 [ 43.124210] [] ? ip_reply_glue_bits+0xb0/0xb0 [ 43.130320] [] ? ip6_push_pending_frames+0xe0/0xe0 [ 43.136867] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 43.143846] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 43.150825] [] ? xfrm_lookup_route+0x4f/0x1a0 [ 43.156936] [] ? ip6_dst_hoplimit+0xa6/0x380 [ 43.162959] [] ? ip6_dst_hoplimit+0x1d3/0x380 [ 43.169073] [] udpv6_sendmsg+0x1b1d/0x2540 [ 43.174922] [] ? ip_reply_glue_bits+0xb0/0xb0 [ 43.181032] [] ? udp_v6_rehash+0xa0/0xa0 [ 43.186718] [] ? udp_seq_next+0x80/0x80 [ 43.192310] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 43.199287] [] ? sock_has_perm+0x1c2/0x3e0 [ 43.205137] [] ? ip6_datagram_release_cb+0x87/0x470 [ 43.211768] [] ? release_sock+0x20/0x1c0 [ 43.217444] [] ? ip6_datagram_release_cb+0x2b1/0x470 [ 43.224162] [] ? _raw_spin_unlock_bh+0x30/0x40 [ 43.230362] [] ? release_sock+0x14c/0x1c0 [ 43.236125] [] inet_sendmsg+0x2bc/0x4c0 [ 43.241710] [] ? inet_sendmsg+0x73/0x4c0 [ 43.247384] [] ? inet_recvmsg+0x4c0/0x4c0 [ 43.253165] [] sock_sendmsg+0xca/0x110 [ 43.258666] [] SYSC_sendto+0x2c8/0x340 [ 43.264167] [] ? SYSC_connect+0x310/0x310 [ 43.269931] [] ? __pmd_alloc+0x410/0x410 [ 43.275607] [] ? selinux_netlbl_sock_rcv_skb+0x470/0x470 [ 43.282673] [] ? __do_page_fault+0x61a/0xd70 [ 43.288699] [] ? __do_page_fault+0x3c6/0xd70 [ 43.294723] [] ? SyS_setsockopt+0x17f/0x250 [ 43.300657] [] ? mm_fault_error+0x2c0/0x2c0 [ 43.306595] [] SyS_sendto+0x40/0x50 [ 43.311857] [] entry_SYSCALL_64_fastpath+0x23/0xc6 [ 43.318440] Dumping ftrace buffer: [ 43.321947] (ftrace buffer empty) [ 43.325624] Kernel Offset: disabled [ 43.329220] Rebooting in 86400 seconds..